Calcium fluoride. Occurring in nature as the mineral fluorite or fluorspar. It is the primary source of fluorine and its compounds. Pure calcium fluoride is used as a catalyst in dehydration and dehydrogenation and is used to fluoridate drinking water. (From Merck Index, 11th ed)
Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.
Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed)
A source of inorganic fluoride which is used topically to prevent dental caries.
Fluorides, usually in pastes or gels, used for topical application to reduce the incidence of DENTAL CARIES.
A denture replacing one or more (but not all) natural teeth. It is supported and retained by underlying tissue and some or all of the remaining teeth.
A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (From Jablonski, Dictionary of Dentistry, 1992, p286)
A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range.
A shared service which combines the purchasing power of individual organizations or facilities in order to obtain lower prices for equipment and supplies. (From Health Care Terms, 2nd ed)
The 2nd cranial nerve which conveys visual information from the RETINA to the brain. The nerve carries the axons of the RETINAL GANGLION CELLS which sort at the OPTIC CHIASM and continue via the OPTIC TRACTS to the brain. The largest projection is to the lateral geniculate nuclei; other targets include the SUPERIOR COLLICULI and the SUPRACHIASMATIC NUCLEI. Though known as the second cranial nerve, it is considered part of the CENTRAL NERVOUS SYSTEM.
A republic in western Africa, south and east of MALI and west of NIGER. Its capital is Ouagadougou. It was formerly called Upper Volta until 1984.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as flouride (FLUORIDES) to prevent dental caries.
Agreements between two or more parties, especially those that are written and enforceable by law (American Heritage Dictionary of the English Language, 4th ed). It is sometimes used to characterize the nature of the professional-patient relationship.
Outside services provided to an institution under a formal financial agreement.
Status not subject to taxation; as the income of a philanthropic organization. Tax-exempt organizations may also qualify to receive tax-deductible donations if they are considered to be nonprofit corporations under Section 501(c)3 of the United States Internal Revenue Code.
The interarticular fibrocartilages of the superior surface of the tibia.
The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.
Lenses designed to be worn on the front surface of the eyeball. (UMDNS, 1999)
Pieces of glass or other transparent materials used for magnification or increased visual acuity.
Hydrazine substituted by one methyl group.
Hydrofluoric acid. A solution of hydrogen fluoride in water. It is a colorless fuming liquid which can cause painful burns.
Guidelines and objectives pertaining to food supply and nutrition including recommendations for healthy diet.
The amounts of various substances in the diet recommended by governmental guidelines as needed to sustain healthy life.
Libraries in which a major proportion of the resources are available in machine-readable format, rather than on paper or MICROFORM.
Exclusive legal rights or privileges applied to inventions, plants, etc.
A rare form of DEMENTIA that is sometimes familial. Clinical features include APHASIA; APRAXIA; CONFUSION; ANOMIA; memory loss; and personality deterioration. This pattern is consistent with the pathologic findings of circumscribed atrophy of the poles of the FRONTAL LOBE and TEMPORAL LOBE. Neuronal loss is maximal in the HIPPOCAMPUS, entorhinal cortex, and AMYGDALA. Some ballooned cortical neurons contain argentophylic (Pick) bodies. (From Brain Pathol 1998 Apr;8(2):339-54; Adams et al., Principles of Neurology, 6th ed, pp1057-9)
Substances used on inanimate objects that destroy harmful microorganisms or inhibit their activity. Disinfectants are classed as complete, destroying SPORES as well as vegetative forms of microorganisms, or incomplete, destroying only vegetative forms of the organisms. They are distinguished from ANTISEPTICS, which are local anti-infective agents used on humans and other animals. (From Hawley's Condensed Chemical Dictionary, 11th ed)
Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes.
A formylated tripeptide originally isolated from bacterial filtrates that is positively chemotactic to polymorphonuclear leucocytes, and causes them to release lysosomal enzymes and become metabolically activated.
A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.
One of the virulence factors produced by BORDETELLA PERTUSSIS. It is a multimeric protein composed of five subunits S1 - S5. S1 contains mono ADPribose transferase activity.
Signal transduction mechanisms whereby calcium mobilization (from outside the cell or from intracellular storage pools) to the cytoplasm is triggered by external stimuli. Calcium signals are often seen to propagate as waves, oscillations, spikes, sparks, or puffs. The calcium acts as an intracellular messenger by activating calcium-responsive proteins.
Reduction of bone mass without alteration in the composition of bone, leading to fractures. Primary osteoporosis can be of two major types: postmenopausal osteoporosis (OSTEOPOROSIS, POSTMENOPAUSAL) and age-related or senile osteoporosis.
A vitamin that includes both CHOLECALCIFEROLS and ERGOCALCIFEROLS, which have the common effect of preventing or curing RICKETS in animals. It can also be viewed as a hormone since it can be formed in SKIN by action of ULTRAVIOLET RAYS upon the precursors, 7-dehydrocholesterol and ERGOSTEROL, and acts on VITAMIN D RECEPTORS to regulate CALCIUM in opposition to PARATHYROID HORMONE.

Study of resin-bonded calcia investment: Part 1. Setting time and compressive strength. (1/25)

This study was carried out to develop a new titanium casting investment consisting of calcia as the refractory material and a cold-curing resin system as the binder. The setting time of the investment was investigated under different N,N-dimethyl-p-toluidine (DMPT) contents in methyl methacrylate monomer (MMA) and benzoyl peroxide (BPO) contents in calcia without any sintering agent. The effects of the sintering agents, which were calcium fluoride (CaF2) and calcium chloride (CaCl2), on the compressive strength of the investments were investigated at room temperature before and after heating to two different temperatures. The shortest setting time (68 minutes) of the investment was obtained at 0.37 DMPT/BPO (1.5 vol% /1.0 mass%) ratio by mass. The highest strength (16.5 MPa) was obtained from the investment which contained 2 mass% CaF2 and was heated to 1,100 degrees C. It was found that the developed calcia investment containing 2 mass% CaF2 has a possibility for use in titanium castings.  (+info)

Study of resin-bonded calcia investment: part 2. Effect of titanium content on the dimensional change of the investment. (2/25)

In the present study, titanium powder was chosen as an expanding agent of an experimentally prepared resin-bonded calcia investment. The effect of Ti content on the dimensional change was investigated. In addition, the effects of the heating rate and heating temperature on the dimensional change of the investment were investigated during setting and after heating. The expansion increased with Ti content and the highest expansion (1.57%+/-0.58) was obtained at 10 mass% Ti. The highest expansion was obtained at 900 degrees C for 30 min heating and was independent of the heating rate. These findings mean that the titanium powder in the calcia investment oxidized sufficiently at that heating condition. It was found that the developed resin-bonded calcia investment was able to compensate for casting shrinkage of pure titanium by adding some Ti powder to the investment.  (+info)

Binding of cations of group IA and IIA to bovine serum amine oxidase: effect on the activity. (3/25)

In this paper, we report on the presence of cation binding areas on bovine serum amine oxidase, where metal ions of the groups IA and IIA, such as Na(+), K(+), Cs(+), Mg(2+), and Ca(2+), bind with various affinities. We found a cation-binding area that influences the enzyme activity if occupied, so that the catalytic reaction may be altered by some physiologically relevant cations, such as Ca(2+) and K(+). This binding area appears to be localized inside the enzyme active site, because some of these cations act as competitive inhibitors when highly charged amines, such as spermine and spermidine, are used as substrates. In particular, dissociation constant values (K(d)) of 23 and 27 mM were measured for Cs(+) and Ca(2+), respectively, using, as substrate, spermine, a polyamine of plasma. An additional cation-binding area, where metal ions such as Cs(+) (K(d) congruent with 0.1 mM) and Na(+) (K(d) congruent with 54 mM) bind without affecting the enzyme activity, was found by NMR.  (+info)

Thermoluminescence in sintered CaF2:Tb. (4/25)

In order to observe and estimate the dose of ultraviolet (UV) radiation, the thermoluminescence (TL) of sintered CaF2 doped with Tb4O7 and Sm2O3 was studied. A several kind of lanthanides elements are doped in pure CaF2 powder crystals and properties of the TL to UV radiation were observed. The TL intensity from CaF2:Tb was the highest among the samples doped other lanthanide elements. The TL emission may be due to the recombination reaction; Tb2+ + hole-->Tb3+*-->Tb3+ + hv. The TL peaks are observed at about 353 K, 378 K and 458 K. It was found that the 378 K TL peak intensity of CaF2:Tb became strong by addition of Sm2O3. The 378 K TL peak may also be suitable for use as a dosimeter.  (+info)

Preparation and properties of nano-sized calcium fluoride for dental applications. (5/25)

OBJECTIVES: The aim of the present study was to prepare nano-sized calcium fluoride (CaF(2)) that could be used as a labile F reservoir for more effective F regimens and as an agent for use in the reduction of dentin permeability. METHODS: Nano-sized CaF(2) powders were prepared using a spray-drying system with a two-liquid nozzle. The properties of the nano-CaF(2) were studied and the effectiveness of a fluoride (F) rinse with nano-CaF(2) as the F source was evaluated. The thermodynamic solubility product of the nano-CaF(2) solution was determined by equilibrating the nanosample in solutions presaturated with respect to macro-CaF(2). Reactivity of the nano-CaF(2) was assessed by its reaction with dicalcium phosphate dehydrate (DCPD). F deposition by 13.2 mmol/L F rinse with the nano-CaF(2) as the F source was determined using a previously published in vitro model. RESULTS: X-ray diffraction (XRD) analysis showed pattern of low crystalline CaF(2). BET measurements showed that the nano-CaF(2) had a surface area of 46.3m(2)/g, corresponding to a particle size of 41nm. Transmission electron microscopy (TEM) examinations indicated that the nano-CaF(2) contained clusters comprising particles of (10-15) nm in size. The nano-CaF(2) displayed much higher solubility and reactivity than its macro-counterpart. The CaF(2) ion activity product (IAP) of the solution in equilibrium with the nano-CaF(2) was (1.52+/-0.05)x10(-10), which was nearly four times greater than the K(sp) (3.9 x 10(-11)) for CaF(2). The reaction of DCPD with nano-CaF(2) resulted in more F-containing apatitic materials compared to the reaction with macro-CaF(2). The F deposition by the nano-CaF(2) rinse was (2.2+/-0.3)mug/cm(2) (n=5), which was significantly (p<0.001) greater than that ((0.31+/-0.06)mug/cm(2)) produced by the NaF solution. SIGNIFICANCE: The nano-CaF(2) can be used as an effective anticaries agent in increasing the labile F concentration in oral fluid and thus enhance the tooth remineralization. It can also be very useful in the treatment for the reduction of dentin permeability.  (+info)

TiF(4) varnish-A (19)F-NMR stability study and enamel reactivity evaluation. (6/25)

The aim of this study was to develop a titanium tetrafluoride (TiF(4)) varnish and evaluate the stability of the formulation and its reactivity with dental enamel. The varnish was prepared in a resinous matrix using ethanol 96% as solvent. Samples (n=45) were aged at 65 degrees C and 30% of relativity humidity (RE n degrees 01/05-ANVISA) and after 3, 6, 9 and 12 months, nine samples were removed for evaluation and compared with fresh samples. Chemical stability of TiF(4) varnish was determinate by (19)F-NMR and the reactivity of the formulation was quantified by formation of fluoride loosely (CaF(2)) and firmly bound (fluorapatite; FA) to enamel. For reactivity comparisons, a varnish without TiF(4) was used as control. The loss of soluble fluoride was about 0.9% after one year of storage. The values of the reactivity (mean+/-S.D.) of fresh, aged at 3, 6, 9 and 12 months and control samples were: CaF(2) (microg F/mm(2)): 89.3+/-27.5(a); 54.5+/-14.3(b); 51.2+/-29.8(b); 69.3+/-21.3(a); 48.0+/-27.4(b); 0.10+/-0.07(c), FA (microg F/g): 2477.5+/-1044.0(a); 2484.8+/-992.0(a); 2580.0+/-1383.9(a); 2517.2+/-929.9(a); 2121.0+/-1059.2(a); 330.0+/-180.0(b), respectively. Means followed by distinct letters were statistically different (p<0.05). After one year of storage, the formulation was chemically stable and the levels of FA were maintained. However there was an initial decrease in the ability to form CaF(2).  (+info)

Effect of a bonding agent on in vitro biochemical activities of remineralizing resin-based calcium phosphate cements. (7/25)

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Anticaries potential of a fluoride mouthrinse evaluated in vitro by validated protocols. (8/25)

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This report provides detailed analysis of worldwide markets for Calcium Fluoride from 2011-2016, and provides extensive market forecasts (2016-2021) by region/country and subsectors. It covers the key technological and market trends in the Calcium Fluoride market and further lays out an analysis of the factors influencing the supply/demand for Calcium Fluoride, and the opportunities/challenges faced by industry participants. It also acts as an essential tool to companies active across the value chain and to the new entrants by enabling them to capitalize the opportunities and develop business strategies.. Browse Full Report With TOC @ http://www.radiantinsights.com/research/global-calcium-fluoride-market-outlook-2016-2021. Calcium fluoride is the inorganic compound with the formula CaF2. It is a colourless insoluble solid. It occurs as the mineral fluorite (also called fluorspar), which is often deeply coloured owing to impurities. Naturally occurring CaF2 is the principal source of hydrogen ...
Providing here the database of calcium fluoride (cas no 7789-75-5), calcium fluoride manufacturers, calcium fluoride suppliers and exporters. These manufacturing companies are delivering best quality calcium fluoride to the clients on time.
calcium fluoride definition: nounA white powder, CaF2, occurring naturally as fluorite or fluorspar and used in emery wheels, carbon electrodes, fluoridation, and as the principal source of fluorine....
UQG Optics range of Calcium Fluoride windows are used for UV & IR applications. Our Calcium Fluoride grade covers UV & IR with other custom gr
Calcium Fluoride is a medicine available in a number of countries worldwide. A list of US medications equivalent to Calcium Fluoride is available on the Drugs.com website.
All in all, there is no real alternative. The fluoride need definitely to be removed out of the system and the only way is the chemical reaction with Fluoride and Calcium to form Calcium fluoride as amorphous precipitates or crystalline matter, except if you start from quite concentrated HF solutions (, 5% weight).. ...
Chemistry: CaF2, Calcium Fluoride Class: Halides; Uses: As a flux (hence the name) in iron smelting, a rare gemstone, a source of fluorine, as special optical lenses ...
Thorlabs Ø1/2 and Ø1 Calcium Fluoride (CaF2) Negative Meniscus Lenses offer high transmission from 180 nm to 8.0 μm. The lenses on this page are offered uncoated, while broadband AR-coated versions for the 2 µm - 5 μm spectral range are also available
Calcium fluoride is used in aluminium-metallurgy, brake lining, glass manufacturing, enamel and glazing frits production, and the production of welding agents.
Patent Picks are chosen by the editors from publicly available sources. Todays invention is a composition based on calcium fluoride for antiseptic applications.
The adsorption of methylene blue (MB) onto pore-expanded calcium fluoride sludge (ECF) by the batch adsorption technique was investigated. The results showed that the adsorption capacity increased with increasing MB concentration but decreased as pH was increased. In order to investigate the adsorption mechanisms, three simplified isotherm models and kinetic models were used in this study. The best-fit adsorption isotherm was achieved with the Temkin model. Furthermore, the pseudo-second-order kinetic model agreed very well with the dynamical behavior for the adsorption of MB onto ECF. Thermodynamic studies revealed that the adsorption process of MB onto ECF was spontaneous and exothermic. The results indicated that ECF adsorbed MB efficiently and could be used as a waste adsorbent for the removal of cationic dyes in wastewater treatment ...
Calcium di(acetate) - Registration Dossier - ECHA. Registrant / Supplier Registered Updated [Confidential] ALUMICHEM A/S Stejlhøj 16 4400 Kalundborg Denmark 2018 AXEL CHRISTIERNSSON AB Strandvägen 10 449 41 NOL Sweden 2019 AXEL CHRISTIERNSSON BV 1 Februariweg 13 4794 SM Heijningen Netherlands. Calcium Resonium 99.934% w/w Powder for Oral/Rectal …. Calcium Resonium 99.934% w/w Powder for Oral/Rectal Suspension - Summary of Product Characteristics (SmPC) by SANOFI Binding to other orally administered mediions: Calcium Resonium may bind to orally administered mediions, which could …. Export Data and Price of bulk drug rosuvastatin calcium , …. ROSUVASTATIN CALCIUM - BULK DRUG*** Bangladesh Boay Air Cargo KGS 5 212,663 42,533 Oct 06 2016 29420090 ROSUVASTATIN CALCIUM (R-10 ROUTE) (ROSUVASTATIN CALCIUM )- BULK DRUG (OTHER DILOXANIDE FUROATE, CIMETIDINE. Calcium Fluoride - Metallurgical Products India (Pvt.). Bulk Chemicals Calcium Fluoride Bulk Chemicals Calcium Fluoride : CaF 2 Standard ...
The high temperature combustion of hydrogen and oxygen is used to transform halogenated refrigerant gases (HRGs) and halons to produce calcium fluoride salts. Calcium carbonate is also produced by a series of chemical processes. Calcium chloride is partially consumed by the process by reaction with fluoride released during the high temperature combustion of the HRGs. Calcium chloride is also produced in the process during scrubbing of chlorine and during the recovery of ammonia used to remove carbon dioxide. The calcium chloride produced during the process can be used in the combustion reaction to further produce calcium fluoride.
Why is the valency of the Calcium (Ca) Bohr model, set to 2 electrons, instead of 1 electron for stability? Schrodinger and Heisenberg developed an alternate theory about atomic nature that contradicted some of Bohrs model of the atom. Here you are! Most calcium atoms have 20 neutrons (although this can vary). Gryzinskis free-fall atomic models for chemical elements - Duration: Barthek88 , views. Active 1 year, 2 months ago. In atomic physics, the Rutherford-Bohr model or Bohr model or Bohr diagram, presented by Niels Bohr and Ernest Rutherford in , a system consisting of a small, dense nucleus surrounded by revolving electrons -similar to the structure of the Solar System. Venn Diagram Comp... R net technical manual chapter 1 operation sk77981 126 curtiss wright pg drives technology. What will be the electronic dot structure for calcium fluoride. This is how the ionic bond forms in calcium fluoride caf2 youtube. Example Plot... Motherboard Front Panel Connection Diagram, Drag The Labels Onto ...
1. Le NDB, Yazdani M, Rotello VM. Array-based sensing using nanoparticles: an alternative approach for cancer diagnostics. Nanomedicine-UK. 2014;9(10):1487-98 2. McVey BFP, Tilley RD. Solution Synthesis, Optical Properties, and Bioimaging Applications of Silicon Nanocrystals. Accounts Chem Res. 2014;47(10):3045-51 3. Lim SY, Shen W, Gao ZQ. Carbon quantum dots and their applications. Chem Soc Rev. 2015;44(1):362-81 4. Idris NM, Jayakumar MKG, Bansal A, Zhang Y. Upconversion nanoparticles as versatile light nanotransducers for photoactivation applications. Chem Soc Rev. 2015;44(6):1449-78 5. Wolfbeis OS. An overview of nanoparticles commonly used in fluorescent bioimaging. Chem Soc Rev. 2015;44(14):4743-68 6. Wu XM, Zhu WH. Stability enhancement of fluorophores for lighting up practical application in bioimaging. Chem Soc Rev. 2015;44(13):4179-84 7. Peng HS, Chiu DT. Soft fluorescent nanomaterials for biological and biomedical imaging. Chem Soc Rev. 2015;44(14):4699-722 8. Xie J, Lee S, Chen XY. ...
Abstract: Fourier transform infrared micro-spectroscopy provides an effective means of performing rapid, non-destructive, and label-free analysis of specimens according to their vibrational modes. However, as water absorbs very strongly in the infrared region, analysis of aqueous solutions in transmission mode can suffer from problems with signal saturation. We here describe the fabrication of a novel microfluidic device that overcomes this problem. Devices with channel depths of just 3 µm were constructed from calcium fluoride using photolithography and hot embossing bonding, where calcium fluoride was selected due to its transparency in the IR region. The utility of this device was then demonstrated by employing it to follow the precipitation pathways of calcium sulfate and calcium carbonate using synchrotron FTIR micro-spectroscopy. Importantly, due to the high brightness provided by synchrotron radiation, and the fact that the reacting ions (HCO3- , CO32- and SO42-) and the different ...
A study of nuclear relaxation due to paramagnetic impurities has been made, using the system of F19 nuclei in Ca F 2. T1 was measured at helium, hydrogen, and nitrogen temperatures. The field dependence of T1 at helium temperatures consists of three parts: at fields less than a few hundred gauss, the dependence of T1 on the field is parabolic; between a few hundred gauss and about 2.5 Kg, the dependence is linear; and at higher fields, it is linear, but has a steeper slope. Moreover, there is a strong orientation dependence in the helium range for a single crystal, and a size effect appears at higher fields. At temperatures above 14°K, T1 has only a weak orientation dependence. The experimental data indicate that T1 is minimum between 14°K and 63°K. An analysis of the experimental results with existing theories permits a determination of the field and temperature dependence of the relaxation time rho of the spin of the paramagnetic impurity. The analysis gives rho ∼ H-2T-1 for ...
Structure of the Rb C-terminal domain bound to E2F1-DP1: A mechanism for phosphorylation-induced E2F release. Structure of DDB1 in complex with a paramyxovirus v protein: Viral hijack of a propeller cluster in ubiquitin ligase
Did anyone ever answer you? Well I will. I read a lot about sensitive teeth because I have them, and I do recall many people saying that Baking Soda added to any toothpaste (natural or store bought) made their teeth sensitive. Also, salt does the same thing to some people, so Earth Paste didnt work for me. Just use clays. A 50/50 mix of bentonite and kaolin is best. Kaolin is higher in silica and calcium I read. I also add crushed Cell Salts, because they contain calcium fluoride and all the beneficial minerals. About 5 crushed per Tablespoon of powdered clay. As a side note, I also read that xylitol isnt that great for your teeth after all, at least the push to use it was super fast without many studies to back it up. A naturalist online called Colorful Canary advises to use natural stevia instead. In fact, she found evidence that it is bad for your teeth. I think she said it makes them brittle, and more likely to crack (like sodium fluoride does). A little trick for everyone that I learned ...
Dr. Gary Sandler answered: More effective: Because its more effective and it is safe when used properly. When examining calcium Fluoride vs. Sodium Fluoride...
The effect of fluoride inclusions on the properties of titanium produced from the Bureau of Mines-developed induction slag melting process is of concern to the titanium industry. The objective of the research was to determine the effect of removing the nonconductive molten calcium fluoride (caf2) slag used as an insulator between the titanium and the segmented copper crucible. The data were obtai
With no less than five (5) of its 10 elements made of calcium fluoride, it truly is an exotic lens. By comparison, perhaps one or two of Canons finest lenses might be made of fluoride. In addition, the lens coatings are 12-layers and designed to handle that 315-1100nm range-conventional lens coatings attenuate huge portions of that spectral band. Even the Zeiss ZF Prototype lenses use a simpler coating optimized only for infrared.. A few other exotic lenses exist in the rarefied territory of UV-capable lenses, including the Nikon 105/4 UV-Nikkor (long since discontinued), the Pentax 85/4.5 Ultra apochromatic (circa 1975), and the (medium format) Hasselblad/Zeiss 105/4.3 UV-Sonnar. There exist other specialty lenses, most of which were made in very small numbers (and of varying optical performance), but its a safe bet that few to none of them offer the versatility and high performance from UV through infrared that the Coastal 60/4 APO does, especially once one considers the MTF performance and ...
caf2 calcium fluoride fluorite fluorspar flotation Pizza VitoIndustrial Minerals: Fluorspar In Mongolia ResourceClipsSeekingof calcium is 1) Dolomite 2) Barytes 3) Monite Note : Cr
Calcium Fluoride Window CaF2 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts & credit cards/PayPal accepted.
Recycle of radioactive scrap metals (RSM) from decommissioning of DOE uranium enrichment and nuclear weapons manufacturing facilities is mandatory to recapture the value of these metals and avoid the high cost of disposal by burial. The scrap metals conversion project detailed below focuses on the contaminated nickel associated with the gaseous diffusion plants. Stainless steel can be produced in MSC`s vacuum induction melting process (VIM) to the S30400 specification using nickel as an alloy constituent. Further the case alloy can be rolled in MSC`s rolling mill to the mechanical property specification for S30400 demonstrating the capability to manufacture the contaminated nickel into valuable end products at a facility licensed to handle radioactive materials. Bulk removal of Technetium from scrap nickel is theoretically possible in a reasonable length of time with the high calcium fluoride flux, however the need for the high temperature creates a practical problem due to flux volatility. Bulk
Note: The rigid, calcareous material that is white in color and forms the skeleton of vertebrates; primarily composed of calcium hydroxyapatite with smaller amounts of calcium carbonate, calcium fluoride, magnesium phosphate, and ossein, a high molecular weight protein. Bones have a concentric structure with central lymphatic canals surrounded by a spongy lamellar region protected by a dense outer cortex. Bone has been carved and used since ancient times for many purposes, including fish-hooks, spear heads, needles, handles, and art objects. Bones were also burnt to produce bone black and boiled to produce bone glue. Bone can be distinguished from ivory by being generally whiter, more porous, and less dense ...
Blue John vase. Vase made from blue John, a compact banded variety of fluorite (calcium fluoride) found only in Castleton, Derbyshire, UK. - Stock Image C013/6643
Intrahepatic cell-derived, early IL-17 is definitely essential for initiating antigen-presenting cells in virus-like infection; nevertheless, the regulation and source of this IL-17 spike in the liver organ microenvironment are not well described. IL-17F additional uncovered that Lymphotoxin alpha antibody IL-17 signaling was vital for priming Testosterone levels cell replies in virus-like hepatitis. IL-17A oppressed IL-17F release and being injected with 3 109 pfu replication-deficient recombinant Advertisement having the LacZ gene (AdLacZ, bought from Vector Advancement Lab of Baylor University of Medication) as defined previously (25). Rodents had been being injected with 2 106 pfu lymphocytic choriomeningitis trojan (LCMV) Duplicate 13 (a kind present from Dr. Maria Salvato at the School of Baltimore) (37). Titration of LCMV was performed on Vero cell monolayers plated on 24-well plate designs, implemented by the virus-like quantification of immunological concentrate assay (38). The antibody ...
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The piezobirefringence of calcium fluoride, barium fluoride, strontium fluoride, gallium arsenide, and cadmium fluoride has been measured in the infrared over the wavelength range 3.5 to 11 micrometers. A large dispersion was found in the coefficients of the fluorides; moreover, some of the coefficients were observed to reverse sign. The data for GaAs showed a small yet significant dispersion. The data for the alkaline-earth fluorides were fitted to a three parameter strain-dependent oscillator representation of the infrared-active transverse-optic (TO) phonon; the predominant contribution to the dispersion comes from the strain-induced TO phonon splitting; estimates were made to the strain-induced oscillator strength anisotropy. The GaAs data were fitted to the same model but with only two free parameters; here the predominant contribution to the dispersion came from the estimated strain-induced oscillator strength anisotropy of the TO phonon; the experimental data agree fairly well with the theory of
Potassium salts diffuse along dentinal tubules working to decrease the excitability of intradental nerve fibers by blocking axionic action. Potassium citrate 5%, potassium citrate 5.5%, and potassium chloride 3.75% can be used interchangeably and are more effective than fluoride alone.2 Potassium nitrate 5% is most commonly found in the United States because it is the only ingredient approved by the FDA and validated for the relief of sensitivity by interruption of neural response to pain stimuli.3 Studies show potassium nitrate 5% must be used twice daily for at least two weeks for a measurable reduction in sensitivity, and four to eight weeks for pain reduction.2 The downside of potassium salts is solubility; the ingredient is only effective when potassium ion concentrations remain high.1 If this ingredient is effective in reducing a patients dentin hypersensitivity, continued long-term use can be recommended.. Fluoride decreases dentinal permeability by precipitation of calcium fluoride ...
The concept of fluorescence comes from fluorite: a mineral consisting of the salt calcium fluoride (CaF2), a known fluorescent substance. Types of
S33 8WP. Treak Cliff Cavern is known for its geological importance. It has been a designated Site of Special Scientific Interest for many years and by agreement with English Nature all the Blue John Stone deposits on the visitor route are preserved. Blue John Stone is the most prized ornamental variety of Fluor-Spar (Calcium Fluoride). Differing from any other flour-spars in that it has definite banded veins of colour running through it.. Blue John Stone, however, is regularly mined in Treak Cliff cavern from areas not seen by visitors. This is then crafted into fine jewellery, small bowls, ornaments and other decorative items which can be bought from Castleton village.. ...
Fluoride (F) varnishes are effective in preventing caries and reducing dentin sensitivity. The addition of calcium (Ca) and phosphate (PO4) salts may influence the F release rate and also induce formation of calcium/phosphate/fluoride as persistent F reservoirs. The hypothesis is that F release rate can be optimized with the F content and the addition of Ca and PO4 salts. Objectives: To study the effect of the F content and the Ca and PO4 salts on the ion release and precipitation of F varnishes. Methods: The varnish containing 1670 ppm or 22600 ppm fluoride with or without Ca salt (10%) and PO4 salt (5.8%) was painted on a 2x2 cm plastic substrate and immersed in a 0.03 mol/L NaCl solution (n=3). The released ions were measured with pH, Ca, and F electrodes under slow stirring at 22 oC for 3 days. The concentrations of Ca and PO4 were analyzed by spectrophotometric methods. The precipitated calcium phosphate fluoride was characterized with X-ray Powder Diffraction and Scanning Electron ...
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Modified lead titanate ceramics with a composition of (Pb0.88-xCaxSm0.08)(Ti0.98Mn0.02)O3; x = 0.11, 0.13, 0.15 and 0.17 were prepared. Simultaneous doping of samarium and calcium resulted in normal ferroelectric behavior, i.e. the dielectric properties changed in a manner typically associated with isovalent shifting of the Curie temperature. However, the unique attribute of this system appeared for the x=0.13 and 0.15 compositions, which exhibited kts ≥75%.
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Multilayer coextrusion has been used to produce extruded films having up to several thousand alternating layers with individual layer thicknesses ranging from several micrometers to
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Presented by M di-T Gastein.. The hot springs of Wildbad Gastein in Salzburg, Austria, contain Sodium Sulphate predominantly, but also Silicic Acid, Potassium Sulphate and Carbonate, Lithium Chloride, Magnesium Carbonate, Ferrum Carbonate, Aluminium Phosphate, and traces of Calcium Fluoride, Strontium, Arsenicum, Titanic Acid, Rubidium, C sium; also free Carbonic Acid. Lapis albus is a kind of gneiss found in the spring. It is a Silico-fluoride of Calcium. Dilutions.. Clinical.─Amenorrh a. Apoplexy. Calculi. Callosities. Cold, easily taken. Constipation. Debility. Diarrh a. Gout. H morrhoids. Membranous dysmenorrh a. Paralysis. Rheumatism. Scars. Sexual weakness. Typhlitis. Varicose ulcers.. Characteristics.─The effects of the baths are thus described by Constantin James: General unpleasant sensation. Instead of expanding [as would be expected in a warm bath] the skin is drawn up upon itself as if by a tight astringent. There is slight dyspn a; the abdominal walls draw together; the ...
Receding Gums Relief is a homoeopathic formula combined with Schuessler Tissue Salts commonly used for temporary relief of inflamed, bleeding and receding gums. Dosage: Adults: 1 dose is 2 sprays. Take 1 dose twice daily for 4 - 5 weeks. Maintenance dose: 1 dose daily. Directions for use: Spray under the tongue. For best results take 10 minutes before food and/or cleaning teeth or as professionally prescribed. Ingredients: Hekla lava 6C, Fragaria vesca 6C, Plantago major 6C, Capsicum annum 6C, Calcium fluoride 6X, Coccinella septempunctata 6C, Carbo vegetabilis 6C, Contains ethanol. Warning: Always read the label and use only as directed. If symptoms persist consult your healthcare professional.. ...
Synonyms for fluorapatite crystal in Free Thesaurus. Antonyms for fluorapatite crystal. 4 words related to fluorapatite: atomic number 9, fluorine, F, apatite. What are synonyms for fluorapatite crystal?
Broadband SFG spectroscopy is shown to offer considerable advantages over scanning systems in terms of signal-to-noise ratios when probing well-formed single-component supported lipid bilayers formed from zwitterionic lipids with PC headgroups. The SFG spectra obtained from bilayers formed from DOPC, POPC, D Complex molecular systems: supramolecules, biomolecules and interfaces
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Dielectric Polymer Nanocomposites provides the first in-depth discussion of nano-dielectrics, an emerging and fast moving topic in electrical insulation.
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What do I know? I know I like to make mistakes, and I know I like to make them by myself. All the varnishing I do today came from an utterly absurd mistake I once made......the paper and the print looked just so stupid with the wet varnish all over and through .....you could almost see right through to the other side. Everyone knows that varnish is supposed to sit on the surface of the art....but to soak right through the paper ??? This was truly absurd, a definite failure of a try ...
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For example, calcium hydroxide gives calcium fluoride. Sodium bifluoride is produced by neutralizing waste hydrogen fluoride, ... The main role of sodium bifluoride is as a precursor to sodium fluoride, millions of tons of which are produced annually. The ... Sodium bifluoride also aids in the precipitation of calcium ions during the process of nickel electroplating. The compound also ... Sodium bifluoride dissociates to hydrofluoric acid and sodium fluoride: NaHF2 ⇌ HF + NaF The reverse of this reaction is ...
The fluorite structure of calcium fluoride CaF2. The antifluorite structure of magnesium silicide Mg2Si. Rock-salt structure ...
Fluorite, calcium fluoride, is the state mineral. It is mined in the southeastern portion of the state, around Metropolis. ...
In the laboratory, calcium fluoride is commonly used as a window material for both infrared and ultraviolet wavelengths, since ... Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It ... In the early years of the 21st century, the stepper market for calcium fluoride collapsed, and many large manufacturing ... As an infrared optical material, calcium fluoride is widely available and was sometimes known by the Eastman Kodak trademarked ...
Frémy also tried electrolyzing molten calcium fluoride and probably produced some fluorine (since he made calcium metal at the ... Fluorite was determined to be calcium fluoride. Because of fluorine's tight bonding as well as the toxicity of hydrogen ... Fluorite was then shown to be mostly composed of calcium fluoride. Sir Humphry Davy originally suggested the name fluorine, ... succeeded in making elemental fluorine by electrolyzing a mixture of potassium fluoride and hydrogen fluoride. Large-scale ...
Bone is also made of both mineral and carbon-based materials; the mineral-based are calcium, phosphorus, and fluoride; the ...
Later calcium and sodium phosphates became used; bone ash contains calcium phosphate in a high proportion. Calcium fluoride was ... Fluorides of aluminium, calcium, barium, and magnesium can be used with suitable heat treatment. Tin oxide can be used, but ... Ancient milk glasses used crystals of calcium antimonate, formed in the melt from calcium present in the glass and an antimony ...
... is a rare calcium, potassium, sodium fluoride silicate mineral. It is pleochroic, coloured amber, purple and ...
Examples include calcium, zinc, manganese, phosphate, fluoride and sodium compounds. Water generated from the biochemical ... Other elements such as fluoride, while arguably beneficial in low concentrations, can cause dental problems and other issues ...
Examples include calcium, zinc, manganese, phosphate, fluoride and sodium compounds. Water generated from the biochemical ... Sixty million people are estimated to have been poisoned by well water contaminated by excessive fluoride, which dissolved from ... Other elements such as fluoride, while beneficial in low concentrations, can cause dental problems and other issues when ... Although helpful for dental health in low dosage, fluoride in large amounts interferes with bone formation. Half of ...
Dixie, Laura Catherine; Edgar, Andrew; Bartle, Colin Murray (2014). "Samarium doped calcium fluoride: A red scintillator and X- ... added to calcium fluoride. Sm(II) is one of the few materials reported which offers efficient scintillation in the red region ...
The water contains calcium, magnesium, hydrocarbonate, alkalis, chloride, sulfate, and fluoride. Medical indications of the ...
Fluorspar, or calcium fluoride, was mined in Hardin County until the early 1990s. In recent years, average temperatures in the ...
The water contains calcium, magnesium, hydrogen-carbonate, sulphate-chloride, sodium and fluoride ions. The water, together ...
Formation of insoluble calcium fluoride is proposed as the cause for both precipitous fall in serum calcium and the severe pain ... The calcium gluconate is a source of Ca2+ that sequesters the fluoride ions. Other special rinsing solutions may also be used. ... Complications may occur due to fluoride toxicity. Once absorbed into blood through the skin, it reacts with blood calcium and ... Calcium gluconate cream is then usually applied. If pain continues calcium gluconate can be injected into the affected area or ...
His thesis was titled Two-photon absorption spectroscopy of the trivalent cerium ion in calcium fluoride. After finishing his ... Two-photon absorption spectroscopy of the trivalent cerium ion in calcium fluoride (PhD thesis). University of Connecticut. ...
"The Production of Uranium metal by Reduction of its Fluoride with Calcium and Magnesium". Pakistan Steel Journal. Karachi, Sind ...
Fluorides are reduced with calcium, magnesium or barium: 2 AmF 3 + 3 Ba → 1150 − 1350 ∘ C 3 BaF 2 + 2 Am PuF 4 + 2 Ba → 1200 ∘ ... chloride or fluoride by reacting it with calcium in an inert atmosphere: ThO2 + 2 Ca → 2 CaO + Th Sometimes thorium is ... same as in calcium fluoride. Thorium reacting with oxygen exclusively forms the dioxide: Th + O 2 → 1000 ∘ C ThO 2 ⏞ Thorium ... Fluorides of actinides are usually used because they are insoluble in water and can be easily separated with redox reactions. ...
... this proceeds via conversion to scandium fluoride followed by a reduction with metallic calcium. This process is in some ways ...
For instance, calcium fluoride, CaF2, crystallizes in a cubic motif called the fluorite structure. The same crystal structure ...
Solutions of calcium hydroxide can also be used in this context yielding harmless calcium fluoride. (14) 5-Hydroxyhistamine ... Intramolecular delivery of fluoride is possible here and has been observed in some other cases of fluorination with SF4. SN1 ... Liquid hydrogen fluoride can be used as a solvent and catalyst with SF4 to selectively fluorinate alcohols. SF4's reactivity ... Intramolecular delivery of fluoride has been invoked to explain the formation of difluoromethyl cations. Attack of a molecule ...
Meanwhile, the minerals in saliva (calcium and phosphate) together with fluoride are repairing the enamel. Dental caries is a ... Fluoride treatments benefit the teeth by strengthening while sealants help chewing surfaces to not decay. Severe cases can lead ...
The mineral also has a dark black color, perhaps from free calcium (not bonded to fluoride). In 2012, a study reported ... Fluoride is not significant in seawater or brines, unlike the other halides, because the alkaline earth fluorides precipitate ... In space, fluorine commonly combines with hydrogen to form hydrogen fluoride. (This compound has been suggested as a tracer to ... Several other minerals, such as the gemstone topaz, contain fluoride. ...
The exact range is classified, but they said it fired "miles not yards". Uranium-doped calcium fluoride was the second type of ...
"Magnesium", pp.190-249 in "Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride". National ... Mg2+ ions close certain types of calcium channels, which conduct positively charged calcium ions into neurons. With an excess ... March 2008). "Magnesium, calcium, potassium, and sodium intakes and risk of stroke in male smokers". Arch. Intern. Med. 168 (5 ... Too much magnesium may make it difficult for the body to absorb calcium.[citation needed] Not enough magnesium can lead to ...
... hydrated sodium calcium uranyl sulfate carbonate fluoride. Schröckingerite crystallizes in the orthorhombic system, occurring ...
Other low shear strength materials: fluorides of calcium, lithium, barium, and rare earths; sulfides of bismuth and cadmium; ...
Calcium triggers the secretion of histamine from mast cells after previous exposure to sodium fluoride. The secretory process ... can be divided into a fluoride-activation step and a calcium-induced secretory step. It was observed that the fluoride- ... It was also confirmed that the second, but not the first, step in sodium fluoride-induced histamine secretion is inhibited by ... Alm PE (April 1983). "Sodium fluoride evoked histamine release from mast cells. A study of cyclic AMP levels and effects of ...
Costeas, A.; Woodard, H. Q.; Laughlin, J. S. (May 1971). "Comparative Kinetics of Calcium and Fluoride in Rabbit Bone". ... Fluoride undergoes equilibrium with hydrogen fluoride, which has a high permeability allowing fluoride to cross the plasma ... The fluoride circulation in red blood cells accounts for 30%. However, it is freely available to the bone surface for uptake ... 18F]NaF is also taken-up by immature erythrocytes in the bone marrow, which plays a role in fluoride kinetics. The plasma ...
It is produced by treating the mineral fluorite with sulfuric acid, which produces hydrogen fluoride and calcium sulfate. The ... The plant was once part of Allied Chemical, which retained it when it sold the soda ash and calcium chloride operations and ... This site was used since 1920 to manufacture calcium chloride and other chemicals, which were shipped from a deep water port on ...
The resulting fluorides are reduced with alkaline earth metals or alloys of the metals; metallic calcium is used most ... Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine ... The elements, after purification from other rare-earth metals, are isolated as oxides; the oxides are converted to fluorides ... in which all the elements have relationship similar to that of elements of the calcium-strontium-barium-radium series, the ...
Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine ... Lithium fluoride is the only alkali metal halide that is poorly soluble in water,[30] and lithium hydroxide is the only alkali ... The high lattice enthalpy of lithium fluoride is due to the small sizes of the Li+ and F− ions, causing the electrostatic ... Similar solutions are formed by the heavy divalent alkaline earth metals calcium, strontium, barium, as well as the divalent ...
Calcium fluoride - CaF2. *Calcium hydride - CaH2. *Calcium hydroxide - Ca(OH)2 ...
Institute of Medicine (1997). "Fluoride". Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D and Fluoride ... such as calcium (as calcium carbonate, calcium citrate, etc.) or magnesium (as magnesium oxide, etc.), or iron (as ferrous ... Strontium has been found to be involved in the utilization of calcium in the body. It has promoting action on calcium uptake ... fluoride is the only one for which the U.S. Institute of Medicine has established an Adequate Intake.[44] Fluoride poisoning ...
In a limestone, calcite or aragonite (both CaCO3) form because the rock is rich in calcium and carbonate. A corollary is that a ... although it can be replaced by a fluoride, a chloride, or an oxide ion.[112] Because of the variable chemistry, there are over ... For example, the plagioclase feldspars comprise a continuous series from sodium-rich end member albite (NaAlSi3O8) to calcium- ... Epidotes are built around the structure [(SiO4)(Si2O7)]10− structure; for example, the mineral species epidote has calcium, ...
Point Defects in Lithium Fluoride Films Induced by Gamma Irradiation. 2001. World Scientific. 2002. 819. ISBN 981-238-180-5.. ... Garrett, Donald (2004) Handbook of Lithium and Natural Calcium, Academic Press, cited in The Trouble with Lithium 2, Meridian ... Garrett, Donald E (5. april 2004). Handbook of Lithium and Natural Calcium Chloride. s. 99. ISBN 9780080472904.. ... Garrett, Donald E. (2004-04-05) (på en). Handbook of Lithium and Natural Calcium Chloride. Academic Press. s. 200. ISBN ...
Yttrium lithium fluoride (YLF) *Neodymium-doped yttrium lithium fluoride (Nd:YLF). *Yttrium orthovanadate (YVO4) *Neodymium- ... Yttrium calcium oxoborate (YCOB) *Nd:YCOB laser. *Ce:LiSAF. *Ce:LiCAF. *Cr:ZnSe ...
In the production of hydrogen fluoride, calcium fluoride is treated with sulfuric acid, precipitating calcium sulfate. ... Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO4 and related hydrates. In the form of γ- ... Another calcium compound, calcium hydroxide (Ca(OH)2, portlandite) also exhibits a retrograde solubility for the same ... The main use of calcium sulfate is to produce plaster of Paris and stucco. These applications exploit the fact that calcium ...
The compound was first reported by Henri Moissan by the fluorination of platinum metal in the presence of hydrogen fluoride. A ... Ammonium, sodium, magnesium, calcium, strontium, and rare earth including lanthanum fluoropalatinate salts are soluble in water ... 109: 807-9. Slivnik, J. E.; Z̆emva, B.; Druz̆ina, B. (1980). "New syntheses of platinum (IV) and platinum (VI) fluorides". ... doi:10.1016/0021-9614(88)90125-5. "Solid State Structures of the Binary Fluorides of the Transition Metals". Advances in ...
Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine ... fluoride (YbF3) is used as an inert and non-toxic tooth filling as it continuously releases fluoride ions, which are good for ... shows the same structure as calcium oxide (CaO).[8] ...
From aqueous solution, the salt crystallizes as the pentahydrate, the fifth water is not bound to the metal in the solid. Viewed as a coordination complex, the ion is octahedral, with oxo, four equatorial water ligands, and a monodentate sulfate.[1][3] The trihydrate has also been examined by crystallography.[4] A hexahydrate exists below 13.6 °C (286.8 K).[5] Two polymorphs of anhydrous VOSO4 are known.[6] The V=O bond distance is 160 pm, about 50 pm shorter than the V-OH2 bonds. In solution, the sulfate ion dissociates rapidly. Being widely available, vanadyl sulfate is a common precursor to other vanadyl derivatives, such as vanadyl acetylacetonate:[7] ...
... cadmium Calamine Calcite Calcium Calcium carbonate Calcium oxide Californium calomel Calorimeter Canfieldite Carbohydrate ... radioisotope Radium Radon Radon fluoride Raman spectroscopy Raoult's law Redox Reduction Reflux Reversible reaction Rhazes ...
Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine ... Winkler was able to prepare several new compounds of germanium, including fluorides, chlorides, sulfides, dioxide, and ...
The tricalcium phosphate in bone char can be used to remove fluoride[3] and metal ions from water, making it useful for the ... calcium carbonate 6-10% and carbon 7-10%.[1] It is primarily used for filtration and decolorization. ... Fawell, John (2006). Fluoride in drinking-water (1st published. ed.). Geneva: WHO. p. 47. ISBN 9241563192.. ... "Adsorption of Fluoride from Water Solution on Bone Char". Industrial & Engineering Chemistry Research. 46 (26): 9205-9212. doi: ...
... perchlorate and fluoride have become more ubiquitous.[4] In particular, around 1980 the practice of using potassium iodate as ... Increased intake/plasma levels of goitrogens, such as calcium. *Sex (higher occurrence in women) ...
Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine ... It reacts with fluorine to make bismuth(V) fluoride at 500 °C or bismuth(III) fluoride at lower temperatures (typically from Bi ... It is also a strong fluoride acceptor, reacting with xenon tetrafluoride to form the XeF+. 3 cation:[30] ... Bismuth is included in BSCCO (bismuth strontium calcium copper oxide) which is a group of similar superconducting compounds ...
... which releases CO and leaves behind zinc oxide and calcium oxide:. Zn + CaCO3 → ZnO + CaO + CO. Silver nitrate and iodoform ... Another method is heating an intimate mixture of powdered zinc metal and calcium carbonate, ... Hydrogen fluoride. *Hydrogen (molecular). *Hydroxyl radical. *Iron(II) oxide. *Magnesium monohydride cation ...
Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine ... 2 dication, which is valence-isoelectronic with carbonyl fluoride and phosgene, was observed in 2010.[28] Argon-36, in the form ... by shining ultraviolet light onto frozen argon containing a small amount of hydrogen fluoride with caesium iodide. This ...
For optimal action, enough calcium and vitamin D are needed in the body in order to promote normal bone development. ... Highly active vitamin D analogues or fluorides: no data is available. Concomitant treatment should be avoided. The additional ... In laboratory tests decreased calcium and phosphate values may be obtained but reflect action of the drug and are harmless. ... Both groups also took calcium and vitamin D. Prophylaxis and treatment of female osteoporosis Treatment of male osteoporosis ...
For example, the polymer polyvinylidene fluoride (PVDF) exhibits a piezoelectric response several times larger than the ... in which calcium carbonate chalk, talc, glass fibers or carbon fibers have been added for strength, bulk, or electro-static ...
For instance, calcium dissolution tests have shown that other ions present in the medium can be well resolved among themselves ... fluoride, nitrate or sulfate complexes by anion chromatography. Automatic in-line detection was progressively introduced from ... resulting in the extraction of ammonia in addition to the release of calcium.[13][unreliable source?] It was in the fifties and ... and also from the calcium ion. Therefore, IC has been employed in drugs in the form of tablets and capsules in order to ...
In terms of scale, the most important reaction of chloroform is with hydrogen fluoride to give monochlorodifluoromethane (CFC- ... calcium hypochlorite) with ethanol; however, he mistook it for Chloräther (chloric ether, 1,2-dichloroethane).[14][15] ... with sodium hypochlorite or calcium hypochlorite.[7] The haloform process is now obsolete for the production of ordinary ...
Hard water contains calcium and magnesium ions that interfere with action of soap and contribute to the buildup of a scale or ... Sodium fluoride. Sodium bromide. Sodium iodide. Sodium astatide Other cations. Lithium chloride. Potassium chloride. Rubidium ... Sodium chloride is used in the Solvay process to produce sodium carbonate and calcium chloride. Sodium carbonate, in turn, is ... For de-icing, mixtures of brine and salt are used, sometimes with additional agents such as calcium chloride and/or magnesium ...
Fluoride, when transmitted through water at high levels, can also act as a teratogen. Two reports on fluoride exposure from ... cerebral calcifications means certain areas of the brain have atypical calcium deposits,[50] and meningoencephalitis is the ... Studies have shown that heavy metals, elements, nitrates, nitrites, fluoride can be carried through water and cause congenital ... In studies conducted on rats, higher PPM fluoride in drinking water lead to increased acetylcholinesterase levels, which can ...
Presently, UV argon-fluoride (ArF) excimer lasers operating at 193 nm are routinely used in integrated circuit production by ... neural functioning as well as the utilization calcium for bone and egg production. The UVA wavelength is also visible to many ... either windowless or with various windows such as magnesium fluoride.[32] These are often the emitting sources in UV ... doped lithium strontium aluminum fluoride), a process developed in the 1990s at Lawrence Livermore National Laboratory.[36] ...
Magnesium fluoride. Magnesium bromide. Magnesium iodide Other cations. Beryllium chloride. Calcium chloride. Strontium chloride ... Calcium chloride damages concrete twice as fast as magnesium chloride.[11] It should be noticed that the amount of magnesium ... Magnesium can be depleted by mangrove plants and the use of excessive limewater or by going beyond natural calcium, alkalinity ... Dead Sea minerals contain a significantly higher magnesium chloride ratio, 50.8%. Carbonates and calcium are essential for all ...
"Magnesium", pp.190-249 in "Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride". National ... Mg2+ ions close certain types of calcium channels, which conduct positively charged calcium ions into neurons. With an excess ... Too much magnesium may make it difficult for the body to absorb calcium.[citation needed] Not enough magnesium can lead to ... March 2008). "Magnesium, calcium, potassium, and sodium intakes and risk of stroke in male smokers". Arch. Intern. Med. 168 (5 ...
... calcium or magnesium carbonates, fatty acid salts (acid salts), magnesium oxide, silicon dioxide, calcium silicate, sodium ... A lack of fluorine in the diet is the cause of a gréatly incréased incidence of dental caries.[43] Fluoride salts can be added ... The calcium and magnesium salts confer a faintly bitter overtone, and they maké unrefined séa salt hygroscopic (i.e., it ... Unrefined sea salt contains small amounts of magnesium and calcium halides and sulfates, traces of algal products, salt- ...
In patients who consume a high calcium or dairy-rich diet, calcium supplements, or calcium-containing antacids such as ... hydrogen peroxide solution can be used as an alternative to commercial non-fluoride toothpastes, and sodium bicarbonate in ...
A list of US medications equivalent to Calcium Fluoride is available on the Drugs.com website. ... Calcium Fluoride is a medicine available in a number of countries worldwide. ... Calcium Fluoride and Sodium Fluoride). Voco, Denmark; Voco, France. *Bifluorid 12 (Calcium Fluoride and Sodium Fluoride). Meda ...
Calcium fluoride is used in aluminium-metallurgy, brake lining, glass manufacturing, enamel and glazing frits production, and ... Calcium fluoride Nov 12, 2014 Click to enlarge Calcium fluoride (CaF2) is used in aluminium-metallurgy, brake lining, glass ... Calcium fluoride (synth.) is used in the the following applications:. * Brake lining manufacturing: Additive for high ... Synthetic calcium fluoride from Solvay ensures more enjoyment when driving - by a marked reduction in noise through squeak-free ...
On combustion, forms toxic fumes of fluoride. Reacts with mineral acids. This produces corrosive fumes. Formula: CaF2. ...
calcium fluoride synonyms, calcium fluoride pronunciation, calcium fluoride translation, English dictionary definition of ... calcium fluoride. n. A white powder, CaF2, occurring naturally as fluorite or fluorspar and used in emery wheels, carbon ... whey calcium, organic acid calcium, colloidal calcium carbonate, casein phosphopeptide calcium and calcium fluoride.. Anti- ... Calcium fluoride - definition of calcium fluoride by The Free Dictionary https://www.thefreedictionary.com/calcium+fluoride ...
Calcium Fluoride. ASCII format. ________________________________________ Energy μ/ρ μen/ρ (MeV) (cm2/g) (cm2/g ...
Calcium Fluoride CaF2 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term ... About Calcium Fluoride. Calcium Fluoride is a water insoluble Calcium source for use in oxygen-sensitive applications, such as ... Customers For Calcium Fluoride Have Also Viewed. Calcium Fluoride Activated by Europium ... Related Applications, Forms & Industries for Calcium Fluoride. Chemical Manufacturing Dentistry Electronics Fluorides ...
Our Calcium Fluoride grade covers UV & IR with other custom gr ... UQG Optics range of Calcium Fluoride windows are used for UV & ... UQG Optics range of Calcium Fluoride windows are used for UV & IR applications. Our Calcium Fluoride grade covers UV & IR with ... Material: Calcium Fluoride Windows - Caf² UV/IR Grade - Monocrystalline Dimension Tolerance: +0.00/-0.10mm Thickness Tolerance ...
calcium fluoride definition: nounA white powder, CaF2, occurring naturally as fluorite or fluorspar and used in emery wheels, ... calcium fluoride. calcium fluoride. noun. A white powder, CaF2, occurring naturally as fluorite or fluorspar and used in emery ... How would you define calcium fluoride? Add your definition here.. Please enable JavaScript to view the comments powered by ...
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice ...
Calcium Fluoride Window CaF2 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term ... About Calcium Fluoride Window. Calcium Fluoride Windows are typically used for excimer laser optics due to their low absorption ... Calcium fluoride has a high transmission ranging from 250nm to 7µm. Calcium Fluoride Windows are available with a typical ... Customers For Calcium Fluoride Window Have Also Viewed. Calcium Fluoride Activated by Europium ...
The concept of biodegradation is not applicable to inorganic substances such as calcium difluoride. ...
A new slow-release form of fluoride and calcium can reduce spinal fractures and build bone in elderly women with a severe form ... A new slow-release form of fluoride and calcium can reduce spinal fractures and build bone in elderly women with a severe form ... "With our formulation, we have overcome the toxic effects of fluoride while retaining the beneficial, bone-forming qualities of ...
Global Calcium Fluoride Industry Report 2015 is a new market research publication announced by Reportstack. This report is a ... 7 Analysis of Calcium Fluoride Industry Key Manufacturers. 7.1 Solvay. 7.1.1 Company Profile. 7.1.2 Product Picture and ... The Calcium Fluoride industry development trends and marketing channels are analyzed. Finally the feasibility of new investment ... The Calcium Fluoride market analysis is provided for the international markets including development trends, competitive ...
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... econ industries and SAKAB are currently developing a new process for the recovery of calcium fluoride from filter cakes accrued ... To recover the valuable calcium fluoride, the filter cake needs to be dried, which is difficult due to the properties of the ... February 2012 -- econ industries and SAKAB are currently developing a new process for the recovery of calcium fluoride from ... Calcium fluoride recovery by VacuDry® Calcium fluoride recovery by VacuDry® Rating has been disabled ...
Ø1 Calcium Fluoride (CaF2) Negative Meniscus Lenses offer high transmission from 180 nm to 8.0 μm. The lenses on this page are ... Calcium fluoride is also fairly chemically inert and offers superior hardness compared to its barium fluoride, magnesium ... Thorlabs Ø1/2" and Ø1" Calcium Fluoride (CaF2) Negative Meniscus Lenses offer high transmission from 180 nm to 8.0 μm. The ... Products Home / Optical Elements / Optical Lenses / Spherical Singlet Lenses / Negative Meniscus Lenses / Calcium Fluoride ...
Calcium fluoride can be used for many applications, including vacuum ultraviolet, ultraviolet and infrared ... Calcium Fluoride Windows. *Type: Windows. *Applications: Astronomy, Biomedical/Medical, Industrial, Military, Scientific ... Calcium fluoride is traditionally used in apochromatic design to reduce light dispersion in lenses, both in cameras and ... Calcium fluoride can be used for many applications, including vacuum ultraviolet, ultraviolet and infrared thermal imaging. ...
Bureau of Mines investigated calcium fluoride (caf2) assisted sulfuric acid (h2so4) leaching as an alternative to the melting- ... The U.S. Bureau of Mines investigated calcium fluoride (caf2) assisted sulfuric acid (h2so4) leaching as an alternative to the ...
... calcium and phosphate - up to 24 hours. It is formulated to stay in contact with the teeth longer, for effective and advanced ... clear varnish with an extended release of fluoride, ... Contains 22,600 ppm fluoride and tri-calcium phosphate (TCP). * ... Extended Release Formula - continuously releasing fluoride up to 24 hours. *Contains 22,600 ppm fluoride and tri-calcium ... 3M™ Vanish™ 5% Sodium Fluoride White Varnish with Tri-Calcium Phosphate is rated 3.8 out of 5 by 12. ...
Fluoride combines reversibly with hydrogen to form the acid, hydrogen fluoride (HF). Much of the physiological behavior of ... Owing to its high affinity for calcium, fluoride is mainly associated with calcified tissues. Its ability to inhibit, and even ... Recent evidence has shown an especially positive clinical effect when fluoride (23 mg/day) is administered in a sustained ... Fluoride is the ionic form of fluorine, a halogen and the most electronegative of the elements of the periodic table. It is ...
Todays invention is a composition based on calcium fluoride for antiseptic applications. ... Improved biocide compositions based on calcium fluoride. WIPO Patent Application WO/2015/162049 Publication date: Oct. 29, 2015 ... This patent application relates to improved biocide compositions based on calcium fluoride. ... Todays invention is a composition based on calcium fluoride for antiseptic applications. ...
Calcium Fluoride, 5.0 mm Dia., 1.0 mm thick, Uncoated UNIVERSAL. 0.0. 1.0. 0.0. 0.0. 5.0 mm. Vacuum UV Grade Calcium Fluoride. ... Calcium Fluoride, 25.4 mm Dia., 2.0 mm thick, Uncoated UNIVERSAL. 0.0. 1.0. 0.0. 0.0. 25.4 mm. IR Grade Calcium Fluoride. ... Calcium Fluoride, 25.4 mm Dia., 3.0 mm thick, Uncoated UNIVERSAL. 0.0. 1.0. 0.0. 0.0. 25.4 mm. IR Grade Calcium Fluoride. ... Calcium Fluoride, 10.0 mm Dia., 1.5 mm thick, Uncoated UNIVERSAL. 0.0. 1.0. 0.0. 0.0. 10.0 mm. Vacuum UV Grade Calcium Fluoride ...
In an attempt to further explore the calcium requirement of fluoride-induced neutrophil activation, intracellular calcium ... MAT.; CALCIUM COMPOUNDS; MEMBRANE TRANSPORT; FLUORIDES; BIOLOGICAL EFFECTS; PHOSPHOLIPIDS; BIOCHEMICAL REACTION KINETICS; ... Fluoride ion, at concentrations between 10 and 20 mM, was found to elicit a rise in intracellular calcium levels which was ... Fluoride ion, at concentrations above 10 mM, has been found to activate a superoxide production response in human neutrophils ...
Calc Fluor information about active ingredients, pharmaceutical forms and doses by Standard Homeopathic, Calc Fluor indications, usages and related health products lists
In their study Rubin and associates compared fluoride calcium a...Women treated with fluoride showed significant improvements ... in var......,Fluoride,Found,Effective,in,Osteoporosis,,,,medicine,medical news today,latest medical news,medical newsletters, ... Fluoride in combination with calcium and vitamin D increases bone ma... ... Fluoride Found Effective in Osteoporosis Fluoride in combination with calcium and vitamin D increases bone ma...In their study ...
Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride.. Show details. Institute of Medicine (US ... Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. Washington (DC): National Academies ... Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. Washington (DC): National Academies ... Dietary Reference Intakes - Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride. ...
Fluoride 3: 209.. "If calcium and vitamin D are not administered wtih the fluoride, the new bone is largely uncalcified; ... Fluoride Exposure Increases Metabolic Requirement for Calcium & Vitamin D. Fluoride Action Network , April 2012 , By Michael ... If this same fluoride-to-calcium proportionality applies to chronic daily intake of fluoride, then the ingestion of 5 mg of ... including fluorides bone effects. As discussed in the following studies, fluoride increases the skeletons need for calcium ( ...
TECHSPEC Calcium Fluoride (CaF2) Windows used in cryogenically cooled thermal imaging systems in 200nm - 7000nm range are ... TECHSPEC® Calcium Fluoride (CaF2) Windows manufactured from vacuum UV grade calcium fluoride are commonly found in ... Calcium fluoride is often used in spectroscopic windows and lenses due to its high transmission from 200nm to 7μm. Its low ... Calcium fluorides low index or refraction allows it to be used without an anti-reflective coating. The Knoop hardness of ...
... Y. Vijaya and A. ... Present investigation aims to remove fluoride by perchloric acid cross-linked calcium alginate (PCA). Column flow adsorption ... Contamination of drinking water due to fluoride is a severe health hazard problem. Excess of fluoride (,1.5 mg/L) in drinking ... Various treatment technologies for removing fluoride from ground water have been investigated in the past. ...
  • Calcium fluoride (CaF2) is used in aluminium-metallurgy, brake lining, glass manufacturing, enamel and glazing frits production, and the production of welding agents. (solvay.com)
  • The protective effects of fluoride products applied topically is mainly due to the formation of a Calcium Fluoride (CaF2) like layer on the tooth surfaces which act as a reservoir of fluoride ions. (thefreedictionary.com)
  • Calcium fluoride (CaF2), generated as a result of the capture of fluorine, can be recycled as synthetic fluorite. (thefreedictionary.com)
  • The U.S. Bureau of Mines investigated calcium fluoride (caf2) assisted sulfuric acid (h2so4) leaching as an alternative to the melting-quenching procedure to obtain mn from domestic manganese silicate resources. (cdc.gov)
  • Calcium FluorideCAS No. : 7789-75-5Molecular Formula : CaF2Molecular weight : 78.07Appearance : Creamish WhiteMelting point : 1,418° CBoiling point : 2,533° CMolar mass : 78.07 g/molDensity : 3.18 g/cm³Solubility in water : 0.0015 g/100 ml at 180CSpecification : Assay as CaF2 : 97.5% Min. (tradeindia.com)
  • Calcium fluoride is the inorganic compound with the formula CaF2. (tradeindia.com)
  • UQG optics Calcium Fluoride (CaF2) microscope slides and plates are made as squares and rectangles to a standard stock range or custom made to your design. (uqgoptics.com)
  • Description of the material Calcium Fluoride (CaF2) of Korth Kristalle with datasheets, und spectraldiagrams. (cumberlandhotellondon.org)
  • Fluorite is commercially named fluorspar composed of calcium fluoride (CaF2). (barenergy.eu)
  • Heeger Materials (HM) is a leading vendor of high purity Calcium Fluoride (CaF2) Evaporation Material. (heegermaterials.com)
  • The Calcium Fluoride (CaF2) Evaporation Material are vacuum sealed. (heegermaterials.com)
  • The fluorite structure of calcium fluoride CaF2. (wikipedia.org)
  • 1998). Effects of different regimens of sodium fluoride treatment for osteoporosis on the structure, remodeling and mineralization of bone. (fluoridealert.org)
  • 1989). Effects of sodium fluoride, vitamin D, and calcium on cortical bone remodeling in osteoporotic patients. (fluoridealert.org)
  • Endeavoring to prolong the bioavailability and the retention of fluoride onto the tooth surface, Schmidt proposed a method for carrying sodium fluoride using a natural colophony base which could adhere to the tooth surface in the presence of saliva [ 8 , 9 ]. (hindawi.com)
  • Current formulations of fluoride varnishes mostly include 5% sodium fluoride (22,600 ppm) and can be applied to all tooth surfaces twice per year or as a spot application when necessary. (hindawi.com)
  • Sodium fluoride stimulates exocytosis at a late site of calcium interaction in stimulus-secretion coupling: studies with the RINm5F beta cell line. (aspetjournals.org)
  • In the insulin-secreting beta cell line RINm5F, sodium fluoride stimulated exocytosis in a concentration (5-15 mM)- and temperature-dependent manner. (aspetjournals.org)
  • This study was carried out to investigate the role of both calcium chloride and Vitamin C in protection against the deterioration effect of sodium fluoride (NaF) exposure on thyroid function. (poisonfluoride.com)
  • Sodium fluoride is used to prevent dental cavities and might be effective in the treatment of osteoporosis. (nbpower-supply.com)
  • Sodium fluoride (NaF) is a common compound that is found in various foods and can be used to increase bone strength. (nbpower-supply.com)
  • The chosen IDLH, therefore, has been estimated from the human acute lethal dose of 5 grams of sodium fluoride [Largent 1961 cited by AIHA 1965]. (cdc.gov)
  • It has been stated that 5 grams of sodium fluoride is the probable lethal oral dose [Largent 1961]. (cdc.gov)
  • The fluoride compounds sodium fluoride and fluosilicic acid, added into municipal water for human ingestion purposes. (fluoride-class-action.com)
  • Sodium bifluoride dissociates to hydrofluoric acid and sodium fluoride: NaHF2 ⇌ HF + NaF The reverse of this reaction is employed to remove HF from elemental fluorine (F2) produced by electrolysis. (wikipedia.org)
  • Illustrative is its reaction with bisulfate to form sodium sulfate and hydrogen fluoride. (wikipedia.org)
  • Sodium bifluoride is produced by neutralizing waste hydrogen fluoride, which results from the production of superphosphate fertilizers. (wikipedia.org)
  • The main role of sodium bifluoride is as a precursor to sodium fluoride, millions of tons of which are produced annually. (wikipedia.org)
  • Sodium bifluoride also aids in the precipitation of calcium ions during the process of nickel electroplating. (wikipedia.org)
  • Aims: To investigate the benefit of utilizing 18 F-sodium fluoride (NaF) PET/CT over calcium and Framingham scoring for potential preventative coronary artery disease (CAD) intervention. (sdu.dk)
  • Calcium sodium phosphosilicate (NovaMin) is an agent that is claimed to release calcium and phosphate ions intraorally to help the self-repair process of enamel. (nih.gov)
  • Nano-hydroxyapatite exhibited highest remineralization potential in terms of mineral gain followed by amine fluoride and sodium monofluorophosphate dentifrice. (nih.gov)
  • Effectiveness of silver diamine fluoride and sodium fluoride varnish in arresting dentin caries in Chinese pre-school children. (innovareacademics.in)
  • Caries-arresting effects of silver diamine fluoride and sodium fluoride on dentine caries lesions. (bioportfolio.com)
  • sodium fluoride on dentine caries lesions. (bioportfolio.com)
  • Sodium fluoride causes oxidative stress and apoptosis in cementoblasts. (bioportfolio.com)
  • Bacterial viability in oral biofilm after tooth brushing with amine fluoride or sodium fluoride. (bioportfolio.com)
  • The aim of this study was to investigate the effects of sodium fluoride (NaF) and amine fluoride (AmF) on bacterial viability in the oral cavity. (bioportfolio.com)
  • This pilot trial is randomized, double-blind, and placebo-controlled trial two parallel arms: an intervention group silver diamine fluoride (SDF) and a placebo sodium fluoride group (contr. (bioportfolio.com)
  • A sodium fluoride solution, paste or powder, which has been acidulated to pH 3 to 4 and buffered with a phosphate. (bioportfolio.com)
  • Examples of fluorides include sodium fluoride and calcium fluoride. (cdc.gov)
  • Sodium fluoride readily dissolves in water, but calcium fluoride does not. (cdc.gov)
  • Sodium fluoride is often added to drinking water supplies and to a variety of dental products, including toothpastes and mouth rinses to prevent dental cavities. (cdc.gov)
  • Other fluoride compounds that are commonly used for water fluoridation are fluorosilicic acid and sodium fluorosilicate. (cdc.gov)
  • Natural sodium fluoride is in the ocean, so most seafood contains fluoride. (medlineplus.gov)
  • Calcium fluoride minerals are mined as fluorite and fluospar. (inchem.org)
  • It has a melting point of 1,418 °C and boils at 2,533 °C. ==Availability== Calcium fluoride occurs naturally as the mineral fluorite, that can be purchased from mineral sellers. (sciencemadness.org)
  • The effects of calcium and fluoride can be described as independent effects of the two ions or, alternatively, in the form of saturation with respect to fluorite (CaF 2 ). (iwaponline.com)
  • Natural fluorite, the mineral form of calcium fluoride, contains natural dopants, which generate a colorful appearance and fluorescence under UV excitation (and sometimes, phosphorescence). (thno.org)
  • And when mixed with sulphuric acid, fluorite produces hydrogen fluoride, an important industrial chemical precursor. (barenergy.eu)
  • Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF 2. (barenergy.eu)
  • Calcium fluoride is the compound in the common minerals fluorite and fluorspar. (cdc.gov)
  • An unwanted possible risk of adding calcium and phosphate salts to fluoride ions in the varnishes is the formation of poorly soluble calcium fluoride phosphate phases [33] in the material package during storage or in the saliva after the application of the material. (thefreedictionary.com)
  • The low pH of the product has the function of providing calcium ions for the interaction with the fluoride ions applied and reducing the amount of HP[O.sub.4.sup. (thefreedictionary.com)
  • The former is located in the hydration shells on bone crystallites, where fluoride may be exchanged isoionically or heteroionically with ions in the surrounding extracellular fluids. (nih.gov)
  • Paramagnetic resonance and relaxation of trivalent rare-earth ions in calcium fluoride. (alfa.com)
  • SDF, the golden standard for this study, was compared to NSF and PPF, which were made in our own laboratory, to evaluate their ability to release calcium, phosphate, and fluoride ions and act as anticariogenic agents. (innovareacademics.in)
  • The quantity of calcium, phosphate, and fluoride ions on the dentin discs surface was compared after being detected using energy dispersive X-ray spectroscopy. (innovareacademics.in)
  • The levels of phosphate ions and fluoride ions in groups NSF and PPF increased significantly compared to SDF. (innovareacademics.in)
  • The study concluded that, in contrast to SDF, the prepared NSF and PPF fluoride-based varnishes were shown to release calcium, phosphate, and fluoride ions in this study. (innovareacademics.in)
  • Fluoride combines reversibly with hydrogen to form the acid, hydrogen fluoride (HF). (nih.gov)
  • Potassium hydrogen fluoride* (KHF2) is used in the chemical industry, manufacture of wood preservatives glass processing, glass manufacturing and for the production of soldering agents. (solvay.com)
  • Then, all specimens were randomly divided into four groups: C - without bleaching (control), HP35 - bleaching with 35% hydrogen peroxide (HP), HPF38 - 38% HP+fluoride, HPC35 - 35% HP+calcium. (bvsalud.org)
  • This Public Health Statement is the summary chapter from the Toxicological Profile for Fluorides, Hydrogen Fluoride, and Fluorines . (cdc.gov)
  • This public health statement tells you about fluorides, hydrogen fluoride, and fluorine and the effects of exposure presented in the toxicological profile. (cdc.gov)
  • Fluorides, hydrogen fluoride, and fluorine have been found in at least 188 of the 1,636 current or former NPL sites. (cdc.gov)
  • As more sites are evaluated, the sites at which fluorides, hydrogen fluoride, and fluorine is found may increase. (cdc.gov)
  • If you are exposed to fluorides, hydrogen fluoride, and fluorine, many factors determine whether you'll be harmed. (cdc.gov)
  • Fluorspar is the mineral from which hydrogen fluoride is produced. (cdc.gov)
  • 2. The process for preparing hydrogen fluoride according to claim 1, wherein said alkaline substance is calcium hydroxide. (freepatentsonline.com)
  • 3. The process for preparing hydrogen fluoride according to claim 1, wherein said aqueous solution containing hydrogen fluoride and silicofluoric acid has a fluorine concentration of from 0.5 to 20% by weight. (freepatentsonline.com)
  • 4. The process for preparing hydrogen fluoride according to claim 1, wherein said aqueous solution containing hydrogen fluoride and silicofluoric acid is diluted to from 3 to 50 times, to provide a fluorine concentration of from 1 to 7% by weight and is then reacted with calcium carbonate. (freepatentsonline.com)
  • investigated the effect of fluoride, income and gender on caries among 5-year-old and 12-year-old school children in 2004 in Denmark. (iwaponline.com)
  • In addition to the protective effect of fluoride, the study showed a significant increase in DMF-S at reduced incomes. (iwaponline.com)
  • The second study investigated the effect of fluoride, a competitive inhibitor of Cl- activation, on the tyrosine Z (TyrZ) radical that is involved in electron transfer from the manganese cluster. (uncg.edu)
  • Addition of calcium and phosphate does not seem to enhance or inhibit the prevention or remineralization performance of fluoride varnishes. (hindawi.com)
  • Evaluation of remineralization potential of casein phospho-peptide with amorphous calcium phosphate fluoride (CPP-ACPF) on demineralised enamel surfaces. (alliedacademies.org)
  • The process of demineralization and remineralization is considered as a dynamic process, characterized by the flow of phosphate and calcium out of and back in the enamel. (alliedacademies.org)
  • Therefore, the current in-vitro study was designed for evaluating the remineralization potential of casein phospho-peptide with amorphous calcium phosphate fluoride (CPP-ACPF) on the artificially demineralized enamel surfaces samples. (alliedacademies.org)
  • Hence, it can be a new alternate material for remineralization of enamel with less toxic effects compared to fluorides. (nih.gov)
  • Remineralizing agents containing different calcium-phosphate formulas and fluoride have increased remineralization potential compared to artificial saliva. (nih.gov)
  • Fluoride-based varnish is proven to act as antibacterial and remineralization agents that arrested caries progression with minimal side effects. (innovareacademics.in)
  • While fluoride-mediated remineralization is the c. (bioportfolio.com)
  • Calcium fluoride is also fairly chemically inert and offers superior hardness compared to its barium fluoride, magnesium fluoride, and lithium fluoride cousins. (thorlabs.com)
  • Further electrolyte components from our product range which may be used are barium fluoride or calcium fluoride. (solvay.com)
  • Del Mar Photonics supply infrared optics from other materials including ZnSe, Germanium, Barium Fluoride, Calcium Fluoride IR grade and many others. (dmphotonics.com)
  • It shares similar optical properties with barium fluoride, although it has a transmission that is 2.5µm less into the infra-red. (knightoptical.com)
  • Calcium fluoride is however cheaper than barium fluoride as the optical grade occurs naturally as opposed to BaF2 being man made. (knightoptical.com)
  • Fluoride (F) varnishes are effective in preventing caries and reducing dentin sensitivity. (umich.edu)
  • With F-varnishes containing Ca/PO 4 , the Ca and PO 4 concentrations increased together with the pH increase and then decreased due to the precipitation of spherical calcium fluoride and amorphous calcium phosphate nanoaggregates. (umich.edu)
  • The aim of this study was to investigate the efficacy of various fluoride varnishes in the protection of the structural and nanomechanical properties of dental enamel. (hindawi.com)
  • The findings from this study highlight the preventive role of fluoride varnishes. (hindawi.com)
  • Besides easy application and high patient acceptability, fluoride varnishes have exhibited significant clinical efficacy in the reduction of dental caries [ 10 , 11 ]. (hindawi.com)
  • The purpose of this present study was to analyze several fluoride-based varnishes: Silver diamine fluoride (SDF), nanosilver fluoride (NSF), and propolis fluoride (PPF). (innovareacademics.in)
  • Each dentin disc in the treatment group received a topical application of various fluoride-based varnishes and then was subjected to pH-cycling for 8 days. (innovareacademics.in)
  • Hence, NSF and PPF fluoride-based varnishes are promising as anticariogenic agents. (innovareacademics.in)
  • The #1-selling fluoride varnish in the U.S. (3m.com)
  • The varnish containing 1670 ppm or 22600 ppm fluoride with or without Ca salt (10%) and PO 4 salt (5.8%) was painted on a 2x2 cm plastic substrate and immersed in a 0.03 mol/L NaCl solution (n=3). (umich.edu)
  • The mineral density of enamel lesions with no fluoride varnish treatment had an average of 1.85 gr/cm3 which was 25% lower than the corresponding value in varnish treated enamel and 37% lower than sound enamel. (hindawi.com)
  • It is suggested that the highly concentrated fluoride in varnish binds to the surfaces of the enamel hydroxyapatite crystals and forms calcium fluoride [ 12 ]. (hindawi.com)
  • Dietary reference intakes for calcium, phosphorus, magnesium, vitamin D, and fluoride / Standing Committee on the Scientific Evaluation of Dietary Reference Intakes, Food and Nutrition Board, Institute of Medicine. (nap.edu)
  • Efficacy of the injectable calcium phosphate ceramics suspensions containing magnesium, zinc and fluoride on the bone mineral deficiency in ovariectomized rats. (druglib.com)
  • Determination of calcium and magnesium in hydroethanolic extracts of propolis by atomic absorption flame spectrophotometry. (innovareacademics.in)
  • Too much calcium can actually cause a magnesium deficiency. (blogspot.com)
  • The addition of calcium (Ca) and phosphate (PO 4 ) salts may influence the F release rate and also induce formation of calcium/phosphate/fluoride as persistent F reservoirs. (umich.edu)
  • These salts may prolong the retention of the released F by the precipitation of mixed phases of calcium phosphate fluorides. (umich.edu)
  • Looking for online definition of calcium salts in the Medical Dictionary? (cumberlandhotellondon.org)
  • calcium salts explanation free. (cumberlandhotellondon.org)
  • What is calcium salts? (cumberlandhotellondon.org)
  • Meaning of calcium salts medical term. (cumberlandhotellondon.org)
  • Waters in the U.S. can contain natural calcium fluoride along with other calcium salts (U.S. CDC, 5). (fluoride-class-action.com)
  • 2015). 'Effect of Incorporation of Calcium And Fluoride Salts on Transverse Strength of Acrylic Resin', Al-Rafidain Dental Journal , 15(1), pp. 362-368. (mosuljournals.com)
  • The bone cells are embedded in a hard matrix that contains calcium and phosphorus salts- calcium hydroxyapatite and osteo-calcium phosphate. (goprep.co)
  • Fluorides are properly defined as binary compounds or salts of fluorine and another element. (cdc.gov)
  • In the absence of high dietary concentrations of calcium and certain other cations with which fluoride may form insoluble and poorly absorbed compounds, 80 percent or more is typically absorbed. (nih.gov)
  • Fluoride ion, at concentrations above 10 mM, has been found to activate a superoxide production response in human neutrophils which is strongly dependent on the presence of extracellular calcium. (osti.gov)
  • In an attempt to further explore the calcium requirement of fluoride-induced neutrophil activation, intracellular calcium concentrations were monitored through use of the fluorescent calcium probe, Quin 2. (osti.gov)
  • Fluoride ion, at concentrations between 10 and 20 mM, was found to elicit a rise in intracellular calcium levels which was characterized by a lag period of 4 to 10 min and a prolonged duration of action (greater than 20 min). (osti.gov)
  • Osteoid formation was 9 times greater in those exposed to high-fluoride dialysate (50 uM) than in those exposed to lower concentrations (5 uM). (fluoridealert.org)
  • Groundwater fluoride concentrations depend on the geology of the aquifers. (iwaponline.com)
  • Water sources with such low fluoride concentrations, for example 0.1 mg F/L, are supplemented with fluoride up to 1 mg F/L in, for example, USA, Australia, and several other countries. (iwaponline.com)
  • It was shown that ln(DMF-S) is linearly related to the concentrations of calcium and fluoride in drinking water. (iwaponline.com)
  • This figure clearly shows the high prevalence of caries in areas with low concentrations of fluoride and calcium in the drinking water. (iwaponline.com)
  • Solubility calculations indicate that blood fluoride concentrations that occur in lethal poisonings would decrease calcium below normal physiological levels. (fluoride-class-action.com)
  • The concentration of the free fluoride ion was mathematically computed at which the solubility of calcium fluoride would be exceeded with calcium concentrations known to be physiologic. (fluoride-class-action.com)
  • Excess fluoride concentrations in drinking water supplies negatively impact the health of communities living in fluoride affected regions of the world by causing dental and skeletal fluorosis and other severe socio-economic problems. (environmental-expert.com)
  • Aims: The aims of this investigation were to determine the effect of incorporation of CaCO3 from egg shell and Fluoride salt NaF in different concentrations on transverse strength of RESPAL® NF(VEIN 24) heat cured acrylic resin denture base. (mosuljournals.com)
  • The concept of biodegradation is not applicable to inorganic substances such as calcium difluoride. (europa.eu)
  • They include both stannic fluoride (tin tetrafluoride) and stannous fluoride (tin difluoride). (bioportfolio.com)
  • Much of the physiological behavior of fluoride (for example, its absorption from the stomach, distribution between extra- and intracellular fluid compartments and renal clearance) is due to the diffusion of HF ( Whitford, 1996 ). (nih.gov)
  • The fractional retention or balance of fluoride at any age depends on the quantitative features of absorption and excretion. (nih.gov)
  • Recent evidence suggests that fluoride may cause osteomalacia by stimulating bone formation to the extent that there is inadequate calcium absorption to support the demand for increased mineral deposition. (fluoridealert.org)
  • Calcium Fluoride's combination of low absorption with a high damage threshold makes it an excellent material for use with Excimer lasers. (edmundoptics.com)
  • Calcium fluoride's low refractive index allows it to be used without an anti-reflective coating, with Low absorption and high damage threshold. (uqgoptics.com)
  • Absorption and excretion of inhaled fluorides. (cdc.gov)
  • Calcium fluoride has low absorption and high damage threshold and as it has a low refractive index antireflective coatings are not commonly used making it an ideal choice of material for optics used in Excimer lasers are a form of ultraviolet laser used in micro-machining, eye surgery and micro-machining devices. (knightoptical.com)
  • Fluoride ingestion reduces intestinal calcium absorption, and for a child or an adult who already has a calcium deficiency, its toxic effects can be even worse. (blogspot.com)
  • Other factors that can increase a calcium deficiency include excess protein (such as protein shakes and supplements) and coffee, which can excrete calcium through the urine and also decrease its absorption. (blogspot.com)
  • which includes vitamin d for enhanced calcium absorption. (blogspot.com)
  • Other important additions to electrolytes in current commercial use are aluminum fluoride, calcium fluoride and lithium fluoride. (solvay.com)
  • TECHSPEC® Calcium Fluoride (CaF 2 ) Windows manufactured from vacuum UV grade calcium fluoride are commonly found in cryogenically cooled thermal imaging systems. (edmundoptics.com)
  • This double-blind, crossover, and in situ study evaluated the effect of commercial high-F toothpastes with or without functionalized β-tri-calcium phosphate ( f TCP) and conventional-F toothpaste containing or not 1.5% arginine-CaCO 3 in preventing and repairing root caries-like lesions. (springer.com)
  • Avoid using fluoride toothpaste in infants younger than 2 years. (medlineplus.gov)
  • Use only a pea-sized amount of fluoride toothpaste in children older than 2 years. (medlineplus.gov)
  • With our formulation, we have overcome the toxic effects of fluoride while retaining the beneficial, bone-forming qualities of the drug for postmenopausal women with spinal osteoporosis. (chicagotribune.com)
  • Acute lethal poisoning and also many of the chronic 'low' level effects of fluoride are mediated by calcium binding by fluoride ion. (fluoride-class-action.com)
  • It is recommended that drinking water with less than .5 ppm of fluoride (click here to learn how to filter your drinking water from fluoride) and increasing calcium intake provide 100% protection against the toxic effects of fluoride, including fluorosis, improve PMS, lower the risk of kidney stones, and protect you from some forms of cancer. (blogspot.com)
  • however, the effects of fluoride on cementoblasts have received less attenti. (bioportfolio.com)
  • Calcium Fluoride (CaF 2 ) Optical Components are used as spectroscopic windows or lenses, or in cryogenically cooled thermal imaging systems. (edmundoptics.com)
  • The released fluoride prevents demineralization of enamel and reduces caries susceptibility through several suggested mechanisms. (hindawi.com)
  • These include the incorporation of fluoride into enamel hydroxyapatite via filling or displacing the hydroxyl vacancies, therefore stabilizing the crystal structure and lowering the solubility product (Ksp) [ 12 ]. (hindawi.com)
  • Demineralization is the loss of significant amount of minerals, especially calcium and phosphate from the tooth enamel leading to caries formation. (alliedacademies.org)
  • Calcium, not fluoride, is the chief ingredient in normal teeth enamel hydroxyapatite. (fluoride-class-action.com)
  • The principal effect of ingested fluoride on developing teeth is to alter the structure of enamel to cause fluorosis, a permanent mottling reported to afflict 5 million teens aged 12-15 in the U.S. as of 2004. (fluoride-class-action.com)
  • Scanning electron microscope pictures showed that the deposition of the material over the decalcified enamel is more smoother and uniform with NovaMin and more irregular with fluoride. (nih.gov)
  • NovaMin is found to be as effective in improving the Ca/PO 4 ratio and hardness in a demineralized enamel as fluoride. (nih.gov)
  • From the findings of present study, it can be concluded that the adequate level of calcium, phosphate and fluoride is responsible for the significant deposition of these minerals in plaque which greatly reduces the developmental caries in the adjacent enamel. (emedicalj.com)
  • Rarely, infants who get too much fluoride before their teeth have broken through the gums have changes in the enamel that covers the teeth. (medlineplus.gov)
  • Evidence-based clinical recommendations regarding fluoride intake from reconstituted infant formula and enamel fluorosis: a report of the American Dental Association Council on Scientific Affairs. (medlineplus.gov)
  • Third group: administrated NaF (5.2mg/kg.bw/day) + Calcium Chloride (20mg/kg.bw/day) orally by gavage. (poisonfluoride.com)
  • Fifth group: administrated NaF(5.2mg/kg.bw/day) + Calcium Chloride (20mg/kg.bw/day) + Vitamin C(100mg/kg.bw/day) orally by gavage. (poisonfluoride.com)
  • Calcium fluoride Ca[F.sub.2] is found in natural minerals and is not labeled a toxic compound because of the comparatively high lethal oral acute dose of the purified compound when tested in mammals ([LD.sub.50] ~ 3,750 mg/kg). (thefreedictionary.com)
  • Rølla G, Ogaard B, Cruz RA (1991) Clinical effect and mechanism of cariostatic action of fluoride containing toothpastes: a review. (springer.com)
  • Fluoride is the ionic form of fluorine, a halogen and the most electronegative of the elements of the periodic table. (nih.gov)
  • Calcium fluoride is the inorganic compound of the elements calcium and fluorine with the formula CaF 2. (barenergy.eu)
  • In this profile, we will often use the term "fluoride" to include substances that contain the element fluorine. (cdc.gov)
  • It is well known that individuals with nutrient deficiencies are more susceptible to fluoride toxicity, including fluoride's bone effects. (fluoridealert.org)
  • No data on acute inhalation toxicity are available on which to base the IDLH for fluorides. (cdc.gov)
  • Studies show that children with a calcium deficiency had more severe and complex toxicity from fluoride such as bone disease (such as rickets and osteoporosis), bony leg deformities and tooth decay or cavities. (blogspot.com)
  • 5. Gupta A, Sinha N, Logani A, Shah N. An ex vivo study to evaluate the remineralizing and antimicrobial efficacy of silver diamine fluoride and glass ionomer cement Type VII for their proposed use as indirect pulp capping materials-Part I. J Conserv Dent 2011;14:113-6. (innovareacademics.in)
  • 6. Horst JA, Ellenikiotis H, Milgrom PL. UCSF protocol for caries arrest using silver diamine fluoride: Rationale, indications and consent. (innovareacademics.in)
  • 12. Yee R, Holmgren C, Mulder J, Lama D, Walker D, van Palenstein Helderman W. Efficacy of silver diamine fluoride for arresting caries treatment. (innovareacademics.in)
  • Human Primary Tooth Histology Six Months after Treatment with Silver Diamine Fluoride. (bioportfolio.com)
  • To describe the histological characteristics of a human primary tooth with deep caries next to the dental pulp 6 months after being treated with silver diamine fluoride (SDF). (bioportfolio.com)
  • The present study aims to evaluate, through a controlled clinical randomized study,the effectiveness of silver diamine fluoride in arresting dentin caries lesions in primary molars when co. (bioportfolio.com)
  • This study investigates whether 1) Silver diamine fluoride (SDF) application using Super Floss can arrest and/or reverse initial interproximal caries on primary molars and 2) whether SDF a. (bioportfolio.com)
  • This study is being conducted to test whether the use of diammine silver fluoride (also called silver diamine fluoride) hardens the cavity sufficiently so that it arrests. (bioportfolio.com)
  • The purpose of this study is to compare standard fillings and silver diamine fluoride (SDF) for treatment of cavities in baby teeth. (bioportfolio.com)
  • A new slow-release form of fluoride and calcium can reduce spinal fractures and build bone in elderly women with a severe form of osteoporosis, researchers say. (chicagotribune.com)
  • Fluoride Found Effective in Osteoporosis ( Fluoride in combination with calcium a. (bio-medicine.org)
  • Fluoride, in combination with calcium and vitamin D, increases bone mass and lowers the risk of backbone fractures associated with osteoporosis, researchers report. (bio-medicine.org)
  • In their study, Rubin and associates compared fluoride, calcium, and vitamin D with calcium and vitamin D alone in the treatment of 85 women aged 65 years or older who had already experienced one or more backbone fractures from osteoporosis. (bio-medicine.org)
  • Much of this evidence has accrued from attempts to treat human osteoporosis by means of high doses of fluoride… If the calcium insufficiency is not corrected, fluoride supplementation can induce osteomalacia… Kyle et al. (fluoridealert.org)
  • 1989). Fluoride and osteoporosis. (fluoridealert.org)
  • Dietary Reference Intakes quantifies the triangle of nutrient, dietary pattern, and risk of chronic disease -- for example, the relationship between calcium consumption and osteoporosis. (booktopia.com.au)
  • Symptoms of a calcium deficiency include skeletal abnormalities such as osteopenia, osteomalacia, osteoporosis and rickets, premature births, some forms of cancer such as colon and breast cancer, pallid skin, tiredness, muscle aches and twitches, insomnia, premenstrual cramps and high blood pressure. (blogspot.com)
  • Fluoride in bone appears to exist in both a rapidly exchangeable pool and a slowly exchangeable pool. (nih.gov)
  • Fluoride in combination with calcium and vitamin D increases bone ma. (bio-medicine.org)
  • Fluoride is known to stimulate new bone formation, but concerns about its safety have limited its use in the elderly, according to Dr. Craig D. Rubin from University of Texas Southwestern Medical Center at Dallas, and others who contributed to the research. (bio-medicine.org)
  • Women treated with fluoride showed significant improvements in various measures of bone formation compared with women not treated with fluoride, the researchers note, suggesting that fractures were prevented by bone remodeling and bone formation. (bio-medicine.org)
  • As discussed in the following studies, fluoride increases the skeleton's need for calcium (and vitamin D) by increasing the amount of unmineralized tissue ( osteoid ) in the bone. (fluoridealert.org)
  • When insufficient calcium and vitamin D is available to mineralize the osteoid, the bone develops mineralization defects that can both weaken the bone and lead to clinical osteomalacia . (fluoridealert.org)
  • 1975) commented that "in the absence of additional calcium, the bone is incompletely mineralized. (fluoridealert.org)
  • If fluoride administration continues…the net result will be osteomalacia and increased bone resorption. (fluoridealert.org)
  • 1995). Histomophometric analysis of iliac crest bone biopsies in placebo-treated versus fluoride-treated subjects. (fluoridealert.org)
  • Fluoride and bone: quantity versus quality (editorial). (fluoridealert.org)
  • A previous study indicated that, in patients maintained by hemodialysis, clinically and roentgenographically apparent bone disease appeared almost exclusively when the dialystate calcium concentration was less than 5.7 mg per 100 ml. (fluoridealert.org)
  • The purpose of this study was to evaluate the therapeutic efficacy of a new calcium phosphate (CaP)-based formulation in improving the bone mineral deficiency in ovariectomized (OVX) rats. (druglib.com)
  • Industrial fluoride ingested from treated water enters saliva at levels too low to affect caries topically, while blood levels during lifelong consumption can harm heart, bone and brain. (fluoride-class-action.com)
  • Saxegaard, "Critical evaluation of the composition and use of topical fluorides, with emphasis on the role of calcium fluoride in caries inhibition," Journal of Dental Research, vol. (thefreedictionary.com)
  • g/ml pertussis toxin resulted in inhibition of the FMLP-induced response, but not that elicited by fluoride. (osti.gov)
  • Edmund Optics offers a wide selection of Calcium Fluoride (CaF 2 ) Optical Components, such as Optical Windows, Optical Lenses, Prisms, or Beamsplitters. (edmundoptics.com)
  • Calcium Fluoride (CaF 2 ) Prisms are used for many broadband applications from the Ultraviolet (UV) to the Infrared (IR). (edmundoptics.com)
  • Knight Optical supply a range of quality calcium fluoride optical components including CaF₂ windows, CaF₂ lenses, CaF₂ prisms, and CaF₂ blanks either from stock or bespoke custom made to your specification for a range of applications. (knightoptical.com)
  • Calcium fluoride precipitates out of the solution, which is filtered and dried. (sciencemadness.org)
  • The concentration of fluoride is here calculated that would cause calcium fluoride precipitates to first form from the known solubility product constant for calcium fluoride (Ksp = 8 x 10-11 at 37oC) and the known concentration of calcium ion in normal human blood (2.2 mM) (Davidsohn, 6). (fluoride-class-action.com)
  • Calcium Fluoride (CaF 2 ) features a low refractive index, removing the need for an anti-reflection coating. (edmundoptics.com)
  • Due to its low refractive index, Calcium Fluoride can be used without an anti - reflective coating. (dmphotonics.com)
  • Calcium fluoride (CaF₂) is commonly used for optics looking at the IR and UV spectrums and has a very low change in refractive index with wavelength. (knightoptical.com)
  • Calcium Fluoride optical windows are transparent from 180 nm to 8 µm, making them ideal for applications such as spectroscopy or fluorescence imaging in the UV, visible, and IR wavelengths. (newport.com)
  • Calcium Fluoride (CaF 2 ) Optical Lenses are used in many spectroscopy applications. (edmundoptics.com)
  • The UV/IR Calcium Fluoride material is ideal for spectroscopy and research applications for wavelength from the UV 180nm to IR 7 microns. (uqgoptics.com)
  • Using electron paramagnetic resonance (EPR) spectroscopy, the TyrZ radical was observed at 77 K in fluoride-inhibited PSII, indicating that electron transfer as blocked. (uncg.edu)
  • UQG Optics range of Calcium Fluoride windows are used for UV & IR applications. (photonics.com)
  • Calcium Fluoride (CaF 2 ) Optics are ideal for a broad range of Ultraviolet (UV), Visible, or Infrared (IR) applications. (edmundoptics.com)
  • Calcium fluoride (CaF 2 ) is commonly used for deep UV laser optics because it shows a very low tendency of color center formation as, compared to other UV-X optical materials. (osapublishing.org)
  • Water fluoridation is the addition of the chemical fluoride to public water supplies, for the purpose of reducing cavities. (cumberlandhotellondon.org)
  • Fluoride in the oral fluids, including saliva and dental plaque, also contributes to the cariostatic effect. (nih.gov)
  • Which are the top geographical regions in South Korea Calcium Fluoride Market 2018-2025? (tokenspectra.com)
  • What are the challenges to the market growth of 2018-2025 South Korea Calcium Fluoride market? (tokenspectra.com)
  • 3.2 High Surface Area Aluminium Fluoride as Catalyst. (wiley.com)
  • At a pH typical of gastric juice, approximately 50% of fluoride is protonated as hydrofluoric acid HF with 50% remaining the free fluoride ion. (fluoride-class-action.com)
  • with metals, it forms fluorides and with water, it forms hydrofluoric acid. (cdc.gov)
  • Use of UV-grade calcium fluoride gives these precision-polished plano-convex lenses minimal fluorescence and high performance for focusing and collimating tasks from the UV through near-infrared. (cvilaseroptics.com)
  • Our Calcium Fluoride grade covers UV & IR with other custom grades made to order which include VUV & raman grade. (photonics.com)
  • Calcium Fluoride (CaF 2 ) VUV and IR grade. (dmphotonics.com)
  • IR grade Calcium Fluoride is transparent up to 12 m. (dmphotonics.com)
  • Fluoride could cause a calcium deficiency osteomalacia. (fluoridealert.org)
  • A lack (deficiency) of fluoride may lead to increased cavities, and weak bones and teeth. (medlineplus.gov)
  • The precipitated calcium phosphate fluoride was characterized with X-ray Powder Diffraction and Scanning Electron Microscope. (umich.edu)
  • The goal of nonrestorative or non- and microinvasive caries treatment (fluoride- and nonfluoride-based interventions) is to manage the caries disease process at a lesion level and minimize the loss of. (bioportfolio.com)
  • Two patients in each group were exposed to dialysate high in fluoride. (fluoridealert.org)
  • I have seen cottage cheese show up with a high ppm of fluoride, and yogurt can have gelatin which can be high in fluoride. (blogspot.com)
  • Thorlabs' Ø1/2" and Ø1" Calcium Fluoride (CaF 2 ) Negative Meniscus Lenses offer high transmission from 180 nm to 8.0 μm. (thorlabs.com)
  • Calcium fluoride is traditionally used in apochromatic design to reduce light dispersion in lenses, both in cameras and telescopes, and has uses in the oil and gas industry as a component in detectors and spectrometers. (photonics.com)
  • Calcium fluoride is often used in spectroscopic windows and lenses due to its high transmission from 200nm to 7μm. (edmundoptics.com)
  • In contrast, the chemotactic peptide, formylmethionyl-leucyl-phenylalanine (FMLP), induced a rise in intracellular calcium concentration which peaked within 1 min. (osti.gov)
  • The natural concentration of fluoride in drinking water varies a great deal depending on the water source. (iwaponline.com)
  • Often, surface water has a low concentration of fluoride. (iwaponline.com)
  • Sandy aquifers have a low fluoride concentration. (iwaponline.com)
  • However, nitrendipine, a blocker of L-type voltage-dependent Ca2+ channels, did not inhibit the NaF-stimulated insulin release and NaF did not cause any changes in the cytosolic free calcium concentration ([Ca2+]i). (aspetjournals.org)
  • AIHA [1965] stated that the atmospheric concentration immediately hazardous to life is unknown, but "particulate fluorides are not likely to cause acute health problems among workmen unless large quantities are swallowed, or unless the more toxic decomposition products are involved. (cdc.gov)
  • The effects of calcium ion and pH over broad ranges on the free fluoride ion aqueous concentration were determined. (fluoride-class-action.com)
  • A 0.9 ppm fluoride solution in distilled water was measured for the free fluoride ion concentration over a wide concentration range of added calcium ion from aliquots of a calcium biphosphate solution. (fluoride-class-action.com)
  • In other experiments a 1.2 ppm fluoride concentration solution was measured for free fluoride ion level as a function of pH. (fluoride-class-action.com)
  • The concentration of blood fluoride where the blood calcium level would be lowered to the lethal low level of about 1 mM is 0.2 mM fluoride (3.8 ppm). (fluoride-class-action.com)
  • 1975) recommend that, in high-fluoride therapy, the calcium supplements, given concomitantly, should be 35 to 40 times the fluoride supplement, by weight… If this same fluoride-to-calcium proportionality applies to chronic daily intake of fluoride, then the ingestion of 5 mg of fluoride per day would require a supplemental intake of 200 mg calcium per day. (fluoridealert.org)
  • Although fluoride has been debated to be an agent that alters teeth by ingestion, natural fluoride is accompanied with calcium. (fluoride-class-action.com)
  • Calcium Fluoride (CaF 2 ) Optical Windows are ideal for use as spectroscopic windows. (edmundoptics.com)
  • Calcium fluoride's low index or refraction allows it to be used without an anti-reflective coating. (edmundoptics.com)
  • In comparison to the use of glass fibre templates just a very small amount of calcium fluoride occurs as byproduct, because the carbon rods slide out of the glass capillary after carbonization. (thefreedictionary.com)
  • The elimination of absorbed fluoride occurs almost exclusively via the kidneys. (nih.gov)
  • Fluoride occurs naturally in the body as calcium fluoride. (medlineplus.gov)
  • The information below refers to medicines available in the United States that contain fluoride. (drugs.com)
  • Tea and gelatin also contain fluoride. (medlineplus.gov)
  • Synthetic calcium fluoride from Solvay guarantees uniformly high quality through the most careful selection of raw materials and extremely small manufacturing tolerances. (solvay.com)
  • Synthetic calcium fluoride from Solvay ensures that the friction materials have extremely high thermal stability. (solvay.com)
  • Inorganic fluorides from Solvay open up a range of applications. (solvay.com)
  • 7 Inorganic Fluoride Materials from Solvay-Fluor and their Industrial Applications ( Placido Garcia Juan, Hans-Walter Swidersky, Thomas Schwarze and Johannes Eicher) . (wiley.com)
  • HG McCann.The solubility of fluorapatite and its relationship to that of calcium fluoride. (alfa.com)
  • Part No' WCF-403, WCF403, WCF 403Order this Stock Calcium Fluoride Windows Online or call sales +44 (0)1223 420329. (uqgoptics.com)
  • For healthy, young, or middle-aged adults, approximately 50 percent of absorbed fluoride is retained by uptake in calcified tissues, and 50 percent is excreted in the urine. (nih.gov)
  • Leaching of Pyroxmangite Ore With Calcium Fluoride and Sulfuric Acid. (cdc.gov)
  • Present investigation aims to remove fluoride by perchloric acid cross-linked calcium alginate (PCA). (hindawi.com)
  • This includes gastric (hydrochloric) acid: do not swallow calcium fluoride. (sciencemadness.org)
  • These precipitated globules of calcium fluoride act as a reservoir and gradually release fluoride during future acid attacks. (hindawi.com)
  • the improvement comprising treating the suspension of step iv) with an alkali substance to make a pH of from 8 to 12, thereby stabilizing said silicic acid as a colloidal solution so that in step (v) the calcium fluoride is separated from said colloidal solution. (freepatentsonline.com)
  • Avoid fluoride mouth rinses in children younger than 6 years. (medlineplus.gov)
  • This study aimed at quantifying the combined effect of calcium, fluoride and family income on dental caries in Denmark by 2004 by using linear models. (iwaponline.com)
  • Marinho VC, Higgins JP, Logan S, Sheiham A (2003) Fluoride toothpastes for preventing dental caries in children and adolescents. (springer.com)
  • This study was carried out to evaluate the possible protective role of some serum factors like pH and adequate level of calcium, phosphate and fluoride in dental caries. (emedicalj.com)
  • A source of inorganic fluoride which is used topically to prevent dental caries. (bioportfolio.com)
  • American Dental Association Council on Scientific Affairs Expert Panel on Fluoride Intake From Infant Formula and Fluorosis. (medlineplus.gov)
  • Calcium iodide (chemical formula CaI 2) is the ionic compound of calcium and iodine. (cumberlandhotellondon.org)
  • What is the net charge of the ionic compound calcium fluoride? (reference.com)