Inorganic compounds that contain barium as an integral part of the molecule.
A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.
An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.
A solution or compound that is introduced into the RECTUM with the purpose of cleansing the COLON or for diagnostic procedures.
Inorganic compounds that contain the OH- group.
An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62.
A white powder prepared from lime that has many medical and industrial uses. It is in many dental formulations, especially for root canal filling.
A compound with many biomedical applications: as a gastric antacid, an antiperspirant, in dentifrices, as an emulsifier, as an adjuvant in bacterins and vaccines, in water purification, etc.
The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Inorganic compounds that contain tin as an integral part of the molecule.
Energy transmitted from the sun in the form of electromagnetic radiation.
Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)
A metallic element, atomic number 49, atomic weight 114.82, symbol In. It is named from its blue line in the spectrum. (From Dorland, 28th ed)
Objects that produce a magnetic field.
Steroid acids and salts. The primary bile acids are derived from cholesterol in the liver and usually conjugated with glycine or taurine. The secondary bile acids are further modified by bacteria in the intestine. They play an important role in the digestion and absorption of fat. They have also been used pharmacologically, especially in the treatment of gallstones.
Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Substances used to allow enhanced visualization of tissues.
NATIONAL LIBRARY OF MEDICINE service for health professionals and consumers. It links extensive information from the National Institutes of Health and other reviewed sources of information on specific diseases and conditions.
Substances added to foods and medicine to improve the quality of taste.
Thorium oxide (ThO2). A radiographic contrast agent that was used in the early 1930s through about 1954. High rates of mortality have been linked to its use and it has been shown to cause liver cancer.
The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Electron microscopy in which the ELECTRONS or their reaction products that pass down through the specimen are imaged below the plane of the specimen.
The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Organic and inorganic compounds that contain iron as an integral part of the molecule.
Inorganic compounds that contain potassium as an integral part of the molecule.
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)
Inorganic compounds derived from hydrochloric acid that contain the Cl- ion.
Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE.
Chemicals used to destroy pests of any sort. The concept includes fungicides (FUNGICIDES, INDUSTRIAL); INSECTICIDES; RODENTICIDES; etc.
Pesticides designed to control insects that are harmful to man. The insects may be directly harmful, as those acting as disease vectors, or indirectly harmful, as destroyers of crops, food products, or textile fabrics.
Elements, compounds, mixtures, or solutions that are considered severely harmful to human health and the environment. They include substances that are toxic, corrosive, flammable, or explosive.
Conversion from one language to another language.
Any waste product generated by a dental office, surgery, clinic, or laboratory including amalgams, saliva, and rinse water.
A phenethylamine that is an isomer of EPHEDRINE which has less central nervous system effects and usage is mainly for respiratory tract decongestion.
Contamination of the air, bodies of water, or land with substances that are harmful to human health and the environment.
Computer programs or software installed on mobile electronic devices which support a wide range of functions and uses which include television, telephone, video, music, word processing, and Internet service.
A broad class of substances encompassing all those that do not include carbon and its derivatives as their principal elements. However, carbides, carbonates, cyanides, cyanates, and carbon disulfide are included in this class.
A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions.
Activity involved in transfer of goods from producer to consumer or in the exchange of services.
The addition of descriptive information about the function or structure of a molecular sequence to its MOLECULAR SEQUENCE DATA record.
A highly poisonous compound used widely in the manufacture of plastics, adhesives and synthetic rubber.
Compounds used extensively as acetylation, oxidation and dehydrating agents and in the modification of proteins and enzymes.
A viscous, hygroscopic amino alcohol with an ammoniacal odor. It is widely distributed in biological tissue and is a component of lecithin. It is used as a surfactant, fluorimetric reagent, and to remove CO2 and H2S from natural gas and other gases.
A colorless, odorless, highly water soluble vinyl monomer formed from the hydration of acrylonitrile. It is primarily used in research laboratories for electrophoresis, chromatography, and electron microscopy and in the sewage and wastewater treatment industries.
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS.

Delayed rectifier potassium current in undiseased human ventricular myocytes. (1/220)

OBJECTIVE: The purpose of the study was to investigate the properties of the delayed rectifier potassium current (IK) in myocytes isolated from undiseased human left ventricles. METHODS: The whole-cell configuration of the patch-clamp technique was applied in 28 left ventricular myocytes from 13 hearts at 35 degrees C. RESULTS: An E-4031 sensitive tail current identified the rapid component of IK (IKr) in the myocytes, but there was no evidence for an E-4031 insensitive slow component of IK (IKs). When nifedipine (5 microM) was used to block the inward calcium current (ICa), IKr activation was fast (tau = 31.0 +/- 7.4 ms, at +30 mV, n = 5) and deactivation kinetics were biexponential and relatively slow (tau 1 = 600.0 +/- 53.9 ms and tau 2 = 6792.2 +/- 875.7 ms, at -40 mV, n = 7). Application of CdCl2 (250 microM) to block ICa altered the voltage dependence of the IKr considerably, slowing its activation (tau = 657.1 +/- 109.1 ms, at +30 mV, n = 5) and accelerating its deactivation (tau = 104.0 +/- 18.5 ms, at -40 mV, n = 8). CONCLUSIONS: In undiseased human ventricle at 35 degrees C IKr exists having fast activation and slow deactivation kinetics; however, there was no evidence found for an expressed IKs. IKr probably plays an important role in the frequency dependent modulation of repolarization in undiseased human ventricle, and is a target for many Class III antiarrhythmic drugs.  (+info)

Alterations of cross-bridge kinetics in human atrial and ventricular myocardium. (2/220)

CONDENSED ABSTRACT: We analyzed actomyosin cross-bridge kinetics in human atrial and ventricular muscle strip preparations by using sinusoidal length changes from 0.1 to 60 Hz. The minimum stiffness frequency was higher in atrial than in ventricular human myocardium and lower in failing than in non-failing left ventricular human myocardium. beta-Adrenergic stimulation increased the minimum stiffness frequency by 18 +/- 3% (p < 0.05). Cross-bridge kinetics are temperature-dependent, with a Q10 of at least 2.7. BACKGROUND: Dynamic stiffness measurements have revealed acute and chronic alterations of actomyosin cross-bridge kinetics in cardiac muscles of a variety of different animal species. We studied dynamic stiffness in right atrial and left ventricular preparations of non-failing and failing human hearts and tested the influence of the temperature and beta-adrenergic stimulation on cross-bridge kinetics. METHODS AND RESULTS: Muscle strips were prepared from right atria and left ventricles from human non-failing and failing hearts. After withdrawal of calcium, steady contracture tension was induced by the addition of 1.5 mM barium chloride. Sinusoidal length oscillations of 1% muscle length were applied, with a frequency spectrum of between 0.1 and 60 Hz. Dynamic stiffness was calculated from the length change and the corresponding force response amplitude. The specific minimum stiffness frequency, which indicates the interaction between cross-bridge recruitment and cross-bridge cycling dynamics, was analyzed for each condition: (1) The minimum stiffness frequency was 0.78 +/- 0.04 Hz in left ventricular myocardium and 2.80 +/- 0.31 Hz in right atrial myocardium (p < 0.01) at 27 degrees C. (2) The minimum stiffness frequency was 41% higher in non-failing compared to failing left ventricular human myocardium. (3) Over a wide range of experimental temperatures, the minimum stiffness frequency changed, with a Q10 of at least 2.7. (4) beta-Adrenergic stimulation significantly (p < 0.05) increased the minimum stiffness to 18 +/- 3% higher frequencies and significantly (p < 0.05) lowered contracture tension by 7 +/- 1%. CONCLUSIONS: The contractility of human heart muscle is not only regulated by excitation-contraction coupling but also by modulation of intrinsic properties of the actomyosin system. Acute and chronic alterations of cross-bridge kinetics have been demonstrated, which play a significant role in the physiology and pathophysiology of the human heart.  (+info)

P2u receptor-mediated release of endothelium-derived relaxing factor/nitric oxide and endothelium-derived hyperpolarizing factor from cerebrovascular endothelium in rats. (3/220)

BACKGROUND AND PURPOSE: Stimulation of P2u purinoceptors by UTP on endothelium dilates the rat middle cerebral artery (MCA) through the release of endothelium-derived relaxing factor/nitric oxide (EDRF/NO) and an unknown relaxing factor. The purpose of this study was to determine whether this unknown relaxing factor is endothelium-derived hyperpolarizing factor (EDHF). METHODS: Rat MCAs were isolated, cannulated, pressurized, and luminally perfused. UTP was added to the luminal perfusate to elicit dilations. RESULTS: Resting outside diameter of the MCAs in one study was 209+/-7 micrometer (n=10). The MCAs showed concentration-dependent dilations with UTP administration. Inhibition of NO synthase with NG-nitro-L-arginine methyl ester (L-NAME) (1 micromol/L to 1 mmol/L) did not diminish the maximum response to UTP but did shift the concentration-response curve to the right. Scavenging NO with hemoglobin (1 or 10 micromol/L) or inhibition of guanylate cyclase with ODQ (1 or 10 micromol/L) had effects on the UTP-mediated dilations similar to those of L-NAME. In the presence of L-NAME, dilations induced by 10 micromol/L UTP were accompanied by 13+/-2 mV (P<0.009) hyperpolarization of the vascular smooth muscle membrane potential (-28+/-2 to -41+/-1 mV). Iberiotoxin (100 nmol/L), blocker of the large-conductance calcium-activated K channels, sometimes blocked the dilation, but its effects were variable. Charybdotoxin (100 nmol/L), also a blocker of the large-conductance calcium-activated K channels, abolished the L-NAME-insensitive component of the dilation to UTP. CONCLUSIONS: Stimulation of P2u purinoceptors on the endothelium of the rat MCA released EDHF, in addition to EDRF/NO, and dilated the rat MCA by opening an atypical calcium-activated K channel.  (+info)

Analysis of multidrug effects by parameter method. (4/220)

AIM: To set up a new analytic method for multidrug effects. METHODS: Based on the principles of the target site kinetics and the equieffective test, a new mathematical model was set as Q = (Eo-Ee)/magnitude of Ee x W-sx x T (-1 < Q < 1 addition, Q < or = -1 antagonism, Q > or = 1 synergism) where Eo = a fitted value of the observed effect of a combination, Ee = an expected value of combined effect, W = an equieffective criterion decided by a special field, sx = a common standard error of Eo and Ee, and T = a value of one-sided t0.05. All the calculations were completed with computer. Dose-effect data from different types of experiments were fitted by the new model and the results were compared with those of other methods. RESULTS: This parameter method dealt with different types of data well fitted with the Hill equation, and was not limited to analyze receptor interaction of drugs, or the number of combined drugs. A series of Q values was obtained from all levels of dose-effect for a systematic analysis. The analysis took the criterion of a special field and laboratory error into account. CONCLUSION: This parameter method can effectively analyze the multidrug effects.  (+info)

The electrical properties of auditory hair cells in the frog amphibian papilla. (5/220)

The amphibian papilla (AP) is the principal auditory organ of the frog. Anatomical and neurophysiological evidence suggests that this hearing organ utilizes both mechanical and electrical (hair cell-based) frequency tuning mechanisms, yet relatively little is known about the electrophysiology of AP hair cells. Using the whole-cell patch-clamp technique, we have investigated the electrical properties and ionic currents of isolated hair cells along the rostrocaudal axis of the AP. Electrical resonances were observed in the voltage response of hair cells harvested from the rostral and medial, but not caudal, regions of the AP. Two ionic currents, ICa and IK(Ca), were observed in every hair cell; however, their amplitudes varied substantially along the epithelium. Only rostral hair cells exhibited an inactivating potassium current (IA), whereas an inwardly rectifying potassium current (IK1) was identified only in caudal AP hair cells. Electrically tuned hair cells exhibited resonant frequencies from 50 to 375 Hz, which correlated well with hair cell position and the tonotopic organization of the papilla. Variations in the kinetics of the outward current contribute substantially to the determination of resonant frequency. ICa and IK(Ca) amplitudes increased with resonant frequency, reducing the membrane time constant with increasing resonant frequency. We conclude that a tonotopically organized hair cell substrate exists to support electrical tuning in the rostromedial region of the frog amphibian papilla and that the cellular mechanisms for frequency determination are very similar to those reported for another electrically tuned auditory organ, the turtle basilar papilla.  (+info)

Functional regulation of L-type calcium channels via protein kinase A-mediated phosphorylation of the beta(2) subunit. (6/220)

Activation of protein kinase A (PKA) through the beta-adrenergic receptor pathway is crucial for the positive regulation of cardiac L-type currents; however it is still unclear which phosphorylation events cause the robust regulation of channel function. In order to study whether or not the recently identified PKA phosphorylation sites on the beta(2) subunit are of functional significance, we coexpressed wild-type (WT) or mutant beta(2) subunits in tsA-201 cells together with an alpha(1C) subunit, alpha(1C)Delta1905, that lacked the C-terminal 265 amino acids, including the only identified PKA site at Ser-1928. This truncated alpha(1C) subunit was similar to the truncated alpha(1C) subunit isolated from cardiac tissue not only in size ( approximately 190 kDa), but also with respect to its failure to serve as a PKA substrate. In cells transfected with the WT beta(2) subunit, voltage-activated Ba(2+) currents were significantly increased when purified PKA was included in the patch pipette. Furthermore, mutations of Ser-478 and Ser-479 to Ala, but not Ser-459 to Ala, on the beta(2) subunit, completely abolished the PKA-induced increase of currents. The data indicate that the PKA-mediated stimulation of cardiac L-type Ca(2+) currents may be at least partially caused by phosphorylation of the beta(2) subunit at Ser-478 and Ser-479.  (+info)

Bone as an ion exchange system: evidence for a pump-leak mechanism devoted to the maintenance of high bone K(+). (7/220)

To provide evidence of active accumulation of K(+) in bone extracellular fluid (BECF), electric currents driven by damaged living metatarsal bones of weanling mice, immersed in physiological media at different [K(+)], in the presence of blockers of the K(+) channels or of the Na(+)-K(+-)ATPase inhibitor, were measured by means of a voltage-sensitive two-dimensional vibrating probe. At 4 mM extracellular K(+) concentration ([K(+)](o)), an inward steady current density (7.85-38.53 microA/cm(2)) was recorded at the damage site, which was significantly dependent on [K(+)](o). At [K(+)](o) equal to that of BECF (25 mM), current density was reduced by 76%. At [K(+)](o) of 0 mM, the current density showed an increase, which was hindered by tetraethylammonium (TEA). Basal current density was reduced significantly after exposure to TEA or BaCl(2) and was unchanged after long- term exposure to ouabain. By changing control medium with a chloride-free medium, current density was reversed. The results support the view that K(+) excess in bone is maintained by a biologically active cellular system. Because the osteocyte-bone lining cell syncytium was at the origin of the current in bone, it is likely that this system controls the ionic composition of BECF.  (+info)

Altered regulation of potassium and calcium channels by GABA(B) and adenosine receptors in hippocampal neurons from mice lacking Galpha(o). (8/220)

To examine the role of G(o) in modulation of ion channels by neurotransmitter receptors, we characterized modulation of ionic currents in hippocampal CA3 neurons from mice lacking both isoforms of Galpha(o). In CA3 neurons from Galpha(o)(-/-) mice, 2-chloro-adenosine and the GABA(B)-receptor agonist baclofen activated inwardly rectifying K(+) currents and inhibited voltage-dependent Ca(2+) currents just as effectively as in Galpha(o)(+/+) littermates. However, the kinetics of transmitter action were dramatically altered in Galpha(o)(-/-) mice in that recovery on washout of agonist was much slower. For example, recovery from 2-chloro-adenosine inhibition of calcium current was more than fourfold slower in neurons from Galpha(o)(-/-) mice [time constant of 12.0 +/- 0.8 (SE) s] than in neurons from Galpha(o)(+/+) mice (time constant of 2.6 +/- 0.2 s). Recovery from baclofen effects was affected similarly. In neurons from control mice, effects of both baclofen and 2-chloro-adenosine on Ca(2+) currents and K(+) currents were abolished by brief exposure to external N-ethyl-maleimide (NEM). In neurons lacking Galpha(o), some inhibition of Ca(2+) currents by baclofen remained after NEM treatment, whereas baclofen activation of K(+) currents and both effects of 2-chloro-adenosine were abolished. These results show that modulation of Ca(2+) and K(+) currents by G protein-coupled receptors in hippocampal neurons does not have an absolute requirement for Galpha(o). However, modulation is changed in the absence of Galpha(o) in having much slower recovery kinetics. A likely possibility is that the very abundant Galpha(o) is normally used but, when absent, can readily be replaced by G proteins with different properties.  (+info)

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Barium Chloride Dihydrate Specifications (Commercial Grade):Barium Chloride content : 99% min as BaCl2.2H2O Matter insoluble in water: 0.025% Iron as Fe: -------------- 30 ppm max pH of aqueous solution: - 6-8We also offer Barium Chloride Dihydrate of high
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Barium chloride is a chemical substance. It is among the most important salts of barium. It is soluble in water. It is a poison. When it is heated, it gives a yellow or green color to the flame. It is hygroscopic, meaning that it attracts water from the air. It is mainly used to purify brine but applications include fireworks. Barium chloride is toxic. Sodium sulfate may be an antidote. ...
Read across from BaCl2*2H2O to BaCO3: The toxicity of barium carbonate and barium chloride may reasonably be considered to be determined by availability of Ba2+cations. As a first surrogate for bioavailability, the solubility of a test substance may be used. This was investigated for barium carbonate experimentally in a test for comparative bio-accessibility with barium carbonate and barium chloride in artificial gastric juice (HCl, pH=1.5): an excess of each test item was added to a freshly prepared HCl solutions (pH=1.5) to obtain saturation (for details, please refer to IUCLID section 4.20 pH of this dossier). It could be shown that the solubility of barium carbonate in acidic media at 37°C is 3.7 g/L, whereas 510.4 g/L of barium chloride could be dissolved under equal conditions. In consequence, the solubility of barium carbonate under these conditions is more than two orders of magnitude less than that of barium chloride. However, it is to be concluded that this read-across is possible ...
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The merchandise covered by the order is barium chloride, a chemical compound having the formulas BaCl2 or BaCl2-2H2O, currently classifiable under item number 2827.39.45.00 of the Harmonized Tariff Schedule of the United States (HTSUS). The scope reflects the HTSUS item number currently in effect. Although the HTSUS item number is provided for convenience and for U.S. Customs and Border Protection purposes, the written description remains dispositive ...
I was reading in the book that it says that barium chloride contains water but yet it is not wet, and does not feel wet. that is why we refer to it as a hydrous salt. i asked my lecturer about this but she gave a brief answer and i do not fully understand why it is so. i tried searching answers in the internet but to no avail. thank you for your help ...
Learn more about Barium chloride dihydrate. We enable science by offering product choice, services, process excellence and our people make it happen.
New apparatus and a new process for the sputter deposition of modified barium titanate thin-films were developed. Films were deposited at temperatures up to 900 °C from a Ba0.96Ca0.04Ti0.82Zr0.18O3 (BCZTO) target directly onto Si, Ni and Pt surfaces and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Film texture and crystallinity were found to depend on both deposition temperature and substrate: above 600 °C, the as-deposited films consisted of well-facetted crystallites with the cubic perovskite structure. A strongly textured Pt (111) underlayer enhanced the (001) orientation of BCZTO films deposited at 900 °C, 10 mtorr pressure and 10% oxygen in argon. Similar films deposited onto a Pt (111) textured film at 700 °C and directly onto (100) Si wafers showed relatively larger (011) and diminished intensity (00ℓ) diffraction peaks. Sputter ambients containing oxygen caused the Ni underlayers to oxidize even at 700 °C: Raising
CAS Number: 10326-27-9Formula: BaCl2·2H2ODensity: 3.1 g/mLBoiling and Freezing Point: 1560°C, 925°CSolubility: WaterSynonyms: Barium DichlorideShelf Life: 36 MonthsChemicals for science education are available in easy-to-use formats with instructions for students to be introduced to a variety of subjects. These chemicals can be purchased in individual amounts or bulk kits for compatibility with classroom-sized demonstrations or independent studies. Products are designed for educational and teaching laboratories, and may or may not come with a certificate of analysis when ordered.
In this paper,a mild alcohol-thermal synthesis of nano-BaTiO3 from H2TiO3 and Ba(OH)2 at an Atmospheric Press was systematically studied and the optimized preparation conditions were obtained. When the reaction was carried out at a temperature of 79,an atmospheric press for 6h, the moral ratio of Ba(OH)2: H2TiO3=1.0, pH=11, the cubic crystal structure of nano-BaTiO3 was obtained. By comparison with ordinary BaTiO3 ceramic capacitor, the dielectric ceramic capacitor fabricated by nano-BaTiO3 could not only lower sintering temperature from1300 to1150, but also change Courier point from 130 to 70, improve dielectric constant from 6000 to 20000,which can satisfy the development of microdevics.
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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 ...
Data on 6,500 pesticides, insecticides and herbicides including toxicity, water pollution, ecological toxicity, uses and regulatory status.
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Eyes: In case of an eye exposure, the eyes should be flushed with lots of water for a minimum of 15 minutes. The eyelids should be lifted occasionally while the eyes are sprinkled with water. A doctor should be consulted after that.. Skin: In case of a skin contact, a dermatologist should be contacted immediately. The contaminated clothing should be removed immediately and the clothes and shoes should be washed properly before being reused. The infected skin areas should be washed with running water for a minimum of 15 minutes.. Ingestion: In case of ingestion, the victim should be given proper medical attention. Vomiting should not be induced under any circumstances. Nothing ever should be given orally to an unconscious individual. If the victim is alert and conscious, the mouth should be rinsed properly and a few cups of water or milk should be given to the individual.. Inhalation: The victim should be immediately removed to an area of fresh air. Artificial respiration should be used if the ...
LaNiO{sub 3}-BaTiO{sub 3} superlattices with different types of interfaces are studied from first-principles density-functional theory. It is revealed that the ferroelectricity in the superlattice with (NiO{sub 2}){sup −}/(BaO){sup 0} interfaces is enhanced from that of the superlattice with (LaO){sup +}/(TiO{sub 2}){sup 0} interfaces. The origin lies at the polar discontinuity at the interface, which makes the holes localized within the (NiO{sub 2}){sup −}/(BaO){sup 0} interface, but drives a penetration of electrons into BaTiO{sub 3} component near (LaO){sup +}/(TiO{sub 2}){sup 0} interface. Our calculations demonstrate an effective avenue to the robust ferroelectricity in BaTiO{sub 3} ultrathin films. ...
Limit test for sulfates is based on precipitation of sulfate ions by barium chloride reagent. The test samples turbidity is compared with the standard.
An improved high dielectric constant ink useful in making thick film capacitors is disclosed in which a dielectric material is combined with a glass bonding agent having an electropositive element common with the dielectric material. In a preferred embodiment, the improved dielectric material comprises a barium titanate dielectric combined with barium zinc glass.
It is one of the most common water-soluble salts of barium. Product Number Packaging Specification Lot Number; 1099620001: Fibre case: PDF Specification Document: Enter Lot Number Go: Related Products & Applications. CAS No. Flinn Lab Chemicals, Your Safer Source for Science Get Free Barium Chloride Solution downloads. Barium Sulfate is broadly worn as a radio-opaque agent or X-ray contrast agent to analyze gastrointestinal medical conditions. CAS Number(s):,10326-27-9,7732-18-5. MDL number MFCD00149154. Barium Chloride Anhydrous SDS, Safety Data Sheet MSDS Sheet, Material Safety Data Sheet. Barium Chloride, 0.100 N Solution is a chemical solution prepared to exact quality standards and certified for use in laboratories and production processes. PubChem Substance ID 24877692. Like most other barium salts, it is white, toxic, and imparts a yellow-green coloration to a flame. IDENTIFICATION Product Name: Barium Chloride Solution SYNONYMS: Aqueous Barium chloride; Hydrochloric acid, barium salt. ...
Iron(III) Chloride + (3 M) Sodium Hydroxide 6. Iron(III) Chloride + Potassium Nitrate 7. Barium carbonate (BaCO 3), white precipitate is given. Sodium sulphate chemically reacts with barium chloride in the form of their aqueous solution to form a white precipitate of barium sulphate. The precipitate is insoluble in mineral acids. Although sodium chloride can be ingested safely in moderation, barium chloride, sodium carbonate and barium carbonate are all toxic to humans and should be handled with care, according to their Materials Safety Data Sheets 1. Barium chloride, sodium carbonate, and barium carbonate are all toxic to humans, especially if swallowed 1. What Are the Dangers of Ethylene Vinyl Acetate? Barium Nitrate + Sodium Carbonate 5. precipitate of calcium sulfate, water, and heat are formed. The chemical formulas for sodium 3 3 See table in HOW SUPPLIEDsection for contents and characteristics. Include eye protection, as these chemicals can cause severe eye irritation. 1.aqueous sodium ...
Transparent and high permittivity films of poly(methyl methacrylate)-grafted 7 nm barium titanate particles prepared by surface-initiated atom transfer radical polymerizationTransparent and high permittivity films of poly(methyl methacrylate)-grafted 7 nm barium titanate particles prepared by surface-initiated atom transfer radical polymerization ...
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The company has also posted information on its website and is producing a series of training videos and educational materials that will walk clinicians through the basic functions of an anesthesia machine and differences between anesthesia devices and ICU ventilators.. Some hospitals have begun using anesthesia machines as ventilators - others are likely to follow. Its an atypical use for the machines, but these are atypical times - and the Anesthesia Patient Safety Foundation says that using anesthesia machines for their ventilating capabilities certainly should be considered as a life-saving intervention.. For example, ventilation modes and settings are different on anesthesia machines and ventilators, says Nolan. For one thing, ventilators employ a one-way system - passing air and gas into a patients lungs only once - whereas patients hooked up to an anesthesia machine rebreathe some of the air and gases delivered by the device.. Clinicians need to know how to translate between the ...
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TY - JOUR. T1 - Functionalization of BaTiO3 nanoparticles with electron insulating and conducting organophosphazene-based hybrid materials. AU - Pappas, George S.. AU - Wan, Chaoying. AU - Bowen, Chris. AU - Haddleton, David M. AU - Huang, Xiaobin. PY - 2017. Y1 - 2017. N2 - Novel core-shell structured organophosphazene (OPZ) coated BaTiO3 nanoparticles ([email protected]) were produced via a facile and rapid one-step nucleophilic substitution reaction in ambient conditions. The morphology, structure and textural properties of the core-shell nanoparticles were analysed via electron microscopy, spectroscopy, thermogravimetry and porosimetry, and the dielectric properties were evaluated by impedance spectroscopy. The thickness of the cross-linked OPZ shell was readily tailored by varying the weight ratio of the OPZ monomers to BaTiO3, which in turn affected the relative permittivity and the frequency dependence of the OPZ/BaTiO3 particles. A subsequent carbonisation treatment of the [email protected] at 700 °C ...
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TY - JOUR. T1 - Oxygen nonstoichlometry and dielectric evolution of BaTiO 3. Part I - Improvement of insulation resistance with reoxidation. AU - Yang, G. Y.. AU - Dickey, E. C.. AU - Randall, C. A.. AU - Barber, D. E.. AU - Pinceloup, P.. AU - Henderson, M. A.. AU - Hill, R. A.. AU - Beeson, J. J.. AU - Skamser, D. J.. PY - 2004/12/15. Y1 - 2004/12/15. N2 - Impedance spectroscopy, transmission electron microscopy, and electron energy-loss spectroscopy are used to correlate local electrical properties with the microstructure and microchemistry of BaTiO 3 in Ni-electrode multilayer ceramic capacitors. High densities of linear defects and some grains with structural modulations are observed in BaTiO 3 grains in the as-cofired capacitors. The modulated structure is formed on {111} planes of the BaTiO 3. Both types of structural defects are associated with high concentrations of oxygen vacancies. In particular, the oxygen content in the BaTiO 3 grains that are in direct contact with the internal Ni ...
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Abstract: Barium titanate (BaTiO$_3$) is a prototypical ferroelectric perovskite that undergoes the rhombohedral-orthorhombic-tetragonal-cubic phase transitions as the temperature increases. In this work, we develop a classical interatomic potential for BaTiO$_3$ within the framework of the bond-valence theory. The force field is parameterized from first-principles results, enabling accurate large-scale molecular dynamics (MD) simulations at finite temperatures. Our model potential for BaTiO$_3$ reproduces the temperature-driven phase transitions in isobaric-isothermal ensemble (NPT) MD simulations. This potential allows the analysis of BaTiO$_3$ structures with atomic resolution. By analyzing the local displacements of Ti atoms, we demonstrate that the phase transitions of BaTiO$_3$ exhibit a mix of order-disorder and displacive characters. Besides, from detailed observation of structural dynamics during phase transition, we discover that the global phase transition is associated with changes ...
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We develop second-harmonic nanoparticles as the contrast agents for cell imaging. Second-harmonic nanoparticles show promise as cell imaging probes due to their non-bleaching, non-blinking, and coherent signal. Nanoparticles of noncentrosymmetric crystal structures have high second-harmonic generation (SHG) efficiency and provide high contrast in a generally non-structured cell environment. Here, we use barium titanate (BaTiO3) nanoparticles with tetragonal crystal structure as imaging probes. Cytotoxicity tests performed on BaTiO3 nanoparticles with mammalian cells did not result in toxic effects. Specifically we observed no change in the cell metabolism after 24 hours incubation of the cells with high concentration of BaTiO3 nanoparticles. We demonstrate two methods of cell labeling with BaTiO 3 nanoparticles for imaging. One is non-specific labeling via endocytosis of the cells, which results in a great number of the nanoparticles randomly distributed inside the cells. The other is specific ...
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The purpose of this study was to determine whether extracellular matrix (ECM) composition through integrin receptors modulated the volume-sensitive osmolyte anion channels (VSOACs) in skeletal muscle-derived C2C12 cells. Cl? currents in cells plated on FN. In summary, ECM composition and integrins impact the biophysical properties and systems of onset of VSOACs profoundly. = can be the entire cell capacitance MK-2206 2HCl (in pF), can be the quantity of charge moved (in fC), and can be the degree of the voltage-clamp stage. The E+-free of charge pipette and exterior solutions had been designed to reduce the activity of endogenous E+ stations by including cesium in the inner remedy, and tetraethylammonium chloride (TEA) and barium chloride in the superfusate. The exterior hypotonic and isotonic solutions had been produced using a common foundation remedy, which included (in millimeter) 90 NaCl; 0.66 MgCl2; 1 CaCl2; 2 BaCl2; 10 TEA-Cl; 10 HEPES; and 5.5 glucose; pH was modified to 7.4 with NaOH. ...
The photoferroelectric barium titanate (BaTiO3)/polyvinylidene fluoride (PVDF) composite films in the ratio 70:30 are found to possess good photosensitivity in the visible region of the spectrum. Results on the investigations of charge generation, trapping, recombination, discharge, and retention properties of the composite film are presented in this paper. The dark polarization and dark depolarization characteristics of the film show that it can accept and retain very high charge for a very long time. The charge decay properties of the dark polarized and photo depolarized electrosensitized sample indicate that it can be used successfully in electro-photographic applications as the dark decay is found to be slow while the light decay is very fast. In addition to this, the photo polarization and photo depolarization studies of the polarized films show that the film has very good remnant polarization,which persists for several hours to days. The persistence of polarization, its magnitude, and the ...
List provided by StopSprayingCalifornia.com. Of course, the most logical question about this unsavory list of noxious ingredients is: Why are there so many known toxins included in the mix?. More specifically, the preponderance of barium salt (barium chloride) and alumina (aluminum oxide), which are said to exist in the greatest concentration in chemtrails, is particularly alarming. Why? Because barium is well known to decrease and/or impair immune function. Aluminum oxide has its own set of problems, especially when inhaled in certain concentrations over prolonged periods of time. Aluminum, in any form, is not very easy for the body to detoxify, especially when it finds a home in the lungs.. Harnessing liquid-Sunshine for a flight over the blue lagoon for a moonlite nite cannot exist anymore. Our emotional balance and attachments to the natural are fading into greyness-Excesses then the recesses of the mind play havoc. My word-term for this is mindscAPe. R. Chemtrailing the skies of ...
A new technique for creating films of barium titanate (BaTiO3) nanoparticles in a polymer matrix could allow fabrication of improved capacitors able to store twice as much energy as existing devices. The improved capacitors ...
This Application Note describes the photometric determination of sulfate in aqueous solutions using the Optrode (520 nm). Sulfate is precipitated with an excess of barium chloride solution. Excess barium is subsequently titrated with EDTA.
What is the chemical equation for the sublimation of iodine? 2 NaBr + Ca(OH) 2 CaBr 2 + 2 NaOH double displacement 2. Favourite answer. 3 Pb + 2 H 3 PO 4 3 H 2 + Pb 3 (PO 4) 2 single displacement 5. Chemical combination. Balancing Equations practice worksheet.docx - Balancing Equations Name Balance the following chemical equations 1 CH4 O2 CO2 H2O 2 Na I2 NaI 3 N2 O2 N2O Others know that in winter the valley has some of the finest ice-climbing in the Alps. (cis- and trans- mixture) Not available. What is the chemical name of I2 (2 as a subscript)? An internal searchable library of your chemical inventory is essential. [1] 1 decade ago. And here is the reason why ? Give reason(s) for the product(s) 1. barium chloride + sodium sulfate → 2. calcium + hydrochloric acid → 3. What was the weather in Pretoria on 14 February 2013? Get contact details and address, ID: 14088295155 Uma Chemical Corporation - Offering Iodine Flakes, i2 - Raw Iodine Chemical, आयोडीन at Rs 1800/kg in Vapi, ...
Ferroelectric BaTiO3 films with large polarization have been integrated with Si(001) by pulsed laser deposition. High quality c-oriented epitaxial films are obtained in a substrate temperature range of about 300 °C wide. The deposition temperature critically affects the growth kinetics and thermodynamics balance, resulting on a high impact in the strain of the BaTiO3 polar axis, which can exceed 2% in films thicker than 100 nm. The ferroelectric polarization scales with the strain and therefore deposition temperature can be used as an efficient tool to tailor ferroelectric polarization. The developed strategy overcomes the main limitations of the conventional strain engineering methodologies based on substrate selection: it can be applied to films on specific substrates including Si(001) and perovskites, and it is not restricted to ultrathin films. ...
"Barium and Barium Compounds". In Elvers, Barbara; et al. (eds.). Ullmann's Encyclopedia of Industrial Chemistry. 4 (7th ed.). ... When there is no public data on the element in its pure form, price of a compound is used, per mass of element contained. This ... Hammond, C. R. (2004). "The Elements". In Lide, David R. (ed.). Properties of the Elements and Inorganic Compounds. CRC ... Properties of the Elements and Inorganic Compounds. CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. pp. 4-3-4-42. ...
It and barium have some uses in medicine, for example "barium meals" in radiographic imaging, whilst strontium compounds are ... "Barium and Barium Compounds". In Ullman, Franz (ed.). Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH. doi:10.1002/ ... such as barium nitrate. These in turn are thermally decompressed into barium oxide, which eventually yields pure barium after a ... Barium has some use in vacuum tubes to remove gases,[50] and barium sulfate has many uses in the petroleum industry,[4] as well ...
... or other compounds, such as barium nitrate. These in turn are calcined into barium oxide, which eventually yields pure barium ... It and barium have some uses in medicine, for example "barium meals" in radiographic imaging, whilst strontium compounds are ... To produce barium, barite (impure barium sulfate) is converted to barium sulfide by carbothermic reduction (such as with coke ... Calcium and barium are weakly radioactive: calcium contains about 0.1874% calcium-48, and barium contains about 0.1062% barium- ...
Rosenmund reduction, a reduction using palladium on barium sulfate, poisoned with sulfur compounds. Urushibara Nickel, an ... Thus if a compound contains a double bond as well as a triple bond, only the triple bond is reduced. An example being the ... A Lindlar catalyst is a heterogeneous catalyst that consists of palladium deposited on calcium carbonate or barium sulfate ...
... and barium-dominant compounds that contain the autunite-type sheet". The Canadian Mineralogist. 43 (2): 721-733. doi:10.2113/ ... barium sulfate to barium sulfide, Bologna stone) from Mount Paderno (an extinct volcano in Bologna) has a luminescence. ... A lot of compounds have an 'ICDD Card'. Klein, Cornelis; Hurlbut, Cornelius S., Jr. (1985). Manual of Mineralogy (20th ed.). ... barium, hydrogen, and chlorine. Carl Wilhelm Scheele (1779). "Versuche mit Wasserbley; Molybdaena". Svenska Vetensk. Academ. ...
The government licensed a fluorine-acetate-barium compound and distributed it through hunting associations. Since the fall of ... Strychnine was the most frequently used compound. The poison would be typically mixed in lard or tallow, and spread on bits of ...
It is notable for being more soluble than barium carbonate, unlike other radium compounds. Even though it is insoluble in water ... Radium carbonate is a compound of radium, carbon, and oxygen. This salt is a poisonous, radioactive, amorphous, white powder ... Encyclopedia of the Alkaline Earth Compounds. Elsevier, 2013. pp 370-371. Radium Carbonate v t e. ...
Barium manganate has also been used to oxidize hydrazones to diazo compounds. Manganates are unstable towards ... 2 MnO2 + 4 OH− + O2 → 2 MnO2− 4 + 2 H2O Manganates, particularly the insoluble barium manganate, BaMnO4, have been used as ... Synth., 11: 56-61 CS1 maint: discouraged parameter (link) Procter, G.; Ley, S. V.; Castle, G. H. (2004), "Barium Manganate", in ... Manganates are the only known manganese(VI) compounds. Other manganates include hypomanganate or manganate(V), MnO3− 4, ...
Mixing the two compounds forms a barium sulfate precipitate, which causes turbidity in the solution. A 0.5 McFarland standard ... Original McFarland standards were made by mixing specified amounts of barium chloride and sulfuric acid together. ... is prepared by mixing 0.05 mL of 1.175% barium chloride dihydrate (BaCl2•2H2O), with 9.95 mL of 1% sulfuric acid (H2SO4). Now ...
"Barium and Barium Compounds", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, pp. 1-21, CiteSeerX 10.1.1.150. ... Barium polysulfide is a fungicide and acaricide used in fruit and grape growing. Bismuth compounds have been used because of ... Thallium compounds such as thallium sulfate have been used for impregnating wood and leather to kill fungal spores and bacteria ... Some organic lead compounds are used as industrial biocides: thiomethyl triphenyllead is used as an antifungal agent, cotton ...
Arsenic, barium, DEHP, glycol compounds, manganese, phenol, and sodium were found in unacceptable levels in the wells. As a ...
... compounds, as represented by barium titanate (BaTiO3). With a perovskite structure, this material exhibits piezoelectric ... Owing to the important role of titanium compounds as polymerization catalyst, compounds with Ti-C bonds have been intensively ... complexes were among the first non-platinum compounds to be tested for cancer treatment. The advantage of titanium compounds ... In nature, this compound is found in the minerals anatase, brookite, and rutile. Paint made with titanium dioxide does well in ...
... barium, DEHP, glycol compounds, manganese, phenol, methane, and sodium were found in unacceptable levels in the wells. In April ... The compound 1,4-dichlorobezene was detected in 3 out of 8 oil and gas sites, 3 out of 4 urban sites, and 1 out of 2 rural ... Silicon dioxide (SiO2) is the chemical compound of silica, which is a prevalent component of rock, soil and sand. The most ... The report also suggested that the groundwater contained "compounds likely associated with gas production practices, including ...
Two other synthetic blue barium copper silicate compounds have been found in trace amounts, but are as yet unnamed. They are ... O2 Both Han purple and Han blue are barium copper silicates (containing barium, copper, silicon, and oxygen). However, they ... The barium source was either witherite (BaCO3) or baryte (BaSO4). The rarity of witherite may favor baryte as the most likely ... A Purple Barium Copper Silicate Pigment from Early China. Studies in Conservation 28/1, 15-23. Liu, Z.; Mehta, A.; Tamura, N.; ...
... barium (often barium sulfate), tungsten, or other high atomic weight elements. Sometimes opacifiers are added to medical ... In context of x-rays, opacifiers are additives with high absorption of x-rays; typically these are particles or compounds of ... Fluorides of aluminium, calcium, barium, and magnesium can be used with suitable heat treatment. Tin oxide can be used, but ...
... (barium zinc gallide) is a ternary compound of barium, gallium and zinc that was inspired by the saying "Bazinga!" from ... A substance with a similar looking formula BaZnGa10O17, a barium zinc gallate, is a barium ion conductor. Watson, Tabitha (14 ... Hot liquid BaZn is hard to handle because zinc vapourises and barium reacts with air. Next, centrifuging filtration removes the ... July 2017). "The big bang theory inspires discovery of new compound BaZnGa!". Chemistry World. Royal Society of Chemistry. Jo, ...
Cathodes are often made from porous tungsten filled with a barium compound, which gives low work function; the structure of ...
... compounds have been synthesized containing a cation of the alkaline earth metal barium. Alkali metals are well known ... M. Y. Redko; R. H. Huang; J. E. Jackson; J. F. Harrison; J. L. Dye (2003). "Barium azacryptand sodide, the first alkalide with ... An alkalide is a chemical compound in which alkali metals are anions (that is, they bear a negative charge). Such species are ... "Lithides" and "francides", compounds containing Li− or Fr−, respectively, are not currently known. The known alkalides, first ...
SK 285523, Šimurka, Peter; Peter Vrábel & Viera Petrušková et al., "Lead-free crystal glass, barium, niobium, and compounds ...
It was noted that ZnO2 was preferable to the usage of barium compounds, as it was deemed to be less toxic. The zinc compound ... Recently the compound has found use as a mineral stain for wood and other substances. The mechanism of this action involves the ... This effect was hypothesized to depend upon the compound's penchant for oxygen donation. It has been suggested that the ... Another advantage of ZnO2 was, as compared to the barium and strontium pyroingredients, it effects less corrosion in the ...
... uranium and thorium compounds. Being a compound of arsenic, it is highly toxic. Analytical Chemistry, 51, 2293 (1979). MSDS at ... Thorin (also called Thoron or Thoronol) is an indicator used in the determination of barium, beryllium, lithium, ...
... is a halide mineral with the chemical formula BaF2 which corresponds to the chemical compound barium fluoride. ... The natural existence of barium fluoride was predicted by Michael Fleischer in 1970. Later in the same year, the mineral was ... Although synthetic barium fluoride has been commonly known from at least 1846, it had not been found in nature. ... cleavage crystal faces varies between 88 and 94 kg/mm2 and is close to that of the synthetic barium fluoride (95 kg/mm2). Its ...
Small amounts of barium impurities give the compound a rose color. It is soluble in water, though less so than barium chloride ... Insoluble radium compounds coprecipitate with all barium, most strontium, and most lead compounds. Radium oxide (RaO) has not ... The Curies found the radioactive compounds to be very similar to the barium compounds, except that they were less soluble. This ... compounds of barium, which gave a brilliant green flame color, and unknown radioactive compounds which gave carmine spectral ...
... compound would be barium perradonate (Ba2RnO6), analogous to barium perxenate. The instability of Rn(VIII) is due to the ... Because of the short half-life of radon and the radioactivity of its compounds, it has not been possible to study the compound ... Radon compounds can be formed by the decay of radium in radium halides, a reaction that has been used to reduce the amount of ... The first synthesized compound of radon, radon fluoride, was obtained in 1962. Even today, the word radon may refer to either ...
Barium compounds impart a green color to flames and have been used in fireworks. Barium sulfate is used for its density, ... Soluble barium compounds are poisonous due to release of the soluble barium ion, and have been used as rodenticides. New uses ... halides and other compounds. In an aqueous solution, like compounds of other late lanthanides, soluble lutetium compounds form ... The most common naturally occurring minerals are the very insoluble barium sulfate, BaSO4 (barite), and barium carbonate, BaCO3 ...
Few other compounds of uranium(V) are stable. Barium uranate, BaUO3, is made from barium oxide and uranium dioxide in an ... For example, microcrystalline barium diuranate, BaU2O7 was made by thermal decomposition of barium uranyl acetate at 900 °C. Ba ... Compounds with the formula MIUO3 have a perovskite structure. Compounds MI3UO4 have a defect rock-salt structure. MI7UO6 ... up to about 208 pm in the related compound α-UO3, so it is debatable as to whether these compounds all contain the uranyl ion. ...
3-cyclopentadiene with strong basic strontium and barium compounds provides the corresponding coplanar sandwich compounds. ... 3-cyclopentadiene reacts directly with a range of organometallic compounds or in reduced form as a sodium or potassium compound ... The anion of this compound is used as a sterically demanding ligand, often abbreviated as Cp[BIG], in the organometallic ... 1,2,3,4,5-Pentakis(4-butylphenyl)-1,3-cyclopentadiene is an organochemical compound from the diene group and a cyclopentadiene ...
Forms an explosive compound with copper. Barium nitrate - most common oxidizer/colorant for green and white colors, but with ... Barium also serves as a stabilizer for the mixtures; decomposes at higher temperatures than nitrates of lighter metals and ... Barium chlorate - also serves as a green colorant in fireworks; sensitive, better to avoid. Almost non-hygroscopic. ... Also, some chloride molecular emitters are much stronger than oxides of the same element, as in the case of Barium and ...
Contrast compounds containing barium or iodine, which are radiopaque, can be ingested in the gastrointestinal tract (barium) or ... The contrast compounds have high atomic numbered elements in them that (like bone) essentially block the X-rays and hence the ... barium enema of the small or large intestine) using fluoroscopy. Angioplasty, medical interventions of the arterial system, ...
... is a mixture of 80% calcium hydroxide and 20% barium hydroxide compounds that is used to absorb the exhaled carbon ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. pp. 444-446. ISBN 0-07-049439-8. . Retrieved ... Heiserman, David L. (1992). "Element 39: Yttrium". Exploring Chemical Elements and their Compounds. New York: TAB Books. pp. ... Once reached a human, scandium concentrates in the liver and is a threat to it; some its compounds are possibly carcinogenic, ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... "New Type of Zero-Valent Tin Compound". ChemistryViews. 27 August 2016.. *↑ "HSn". NIST Chemistry WebBook. National Institute of ... Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Compounds with the group 13 elementsEdit. The intermetallic compounds of the alkali metals with the heavier group 13 elements ( ... CompoundsEdit. The alkali metals form complete series of compounds with all usually encountered anions, which well illustrate ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: ...
Barium nitrate - Ba(NO3)2. *Barium oxalate - Ba(C2O4) ... Barium titanate - BaTiO3. Be[edit]. *Beryllium borohydride - Be ... Although most compounds are referred to by their IUPAC systematic names (following IUPAC nomenclature), "traditional" names ... Inorganic Molecules made thinkable, an interactive visualisation showing inorganic compounds for an array of common metal and ... Retrieved from "https://en.wikipedia.org/w/index.php?title=List_of_inorganic_compounds&oldid=907095066" ...
Not that we are entitled to affirm, that these substances we consider as simple may not be compounded of two, or even of a ... Here, Döbereiner found that strontium's properties were intermediate to those of calcium and barium. ... His 1863 publication included a chart (which contained ions and compounds,[12] in addition to elements), but his original paper ... and we ought never to suppose them compounded until experiment and observation has proved them to be so." ...
The compound is often used as a carrier for the chromium ions. One such case is the use of barium chromate as a sulfate ... Barium chromate oxide,. Chromic acid, (BaCrO4), barium salt (1:1), barium tetraoxochromate(VI) ... Barium chromate, named barium tetraoxochromate(VI) by the IUPAC, is a yellow sand like powder with the formula BaCrO4. It is a ... Barium has also been used to color paints. The pigment known as lemon yellow often contained barium chromate mixed with lead ...
... , also known as calcium acetylide, is a chemical compound with the chemical formula of CaC2. Its main use ... A. (2002). "Structure and Properties of Mechanically Activated Barium Peroxide". Inorganic Materials. 38 (4): 363. doi:10.1023/ ... Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. ISBN 0-07-049439-8. .. ...
Typical compounds used are carboxylic acids (e.g. fatty acids (most often oleic acid and stearic acid), dicarboxylic acids) and ... The compounds used include metal halides (most often zinc chloride or ammonium chloride), hydrochloric acid, phosphoric acid, ... Flux residues also tend to outgas in vacuum and space applications, and traces of water, ions and organic compounds may ... As soldering involves high temperatures, compounds that decompose or react, with acids as products, are frequently used: *zinc ...
Exposure to tellurium compounds produces a garlic-like odour on the breath, caused by the formation of ethyl telluride.[13] ... Barium oxide (BaO). *Beryllium oxide (BeO). *Cadmium oxide (CdO) ... additions of a second compound such as an oxide or halide. TeO2 ...
Common reducing agents include metals potassium, calcium, barium, sodium and magnesium, and also compounds that contain the H− ... Compounds containing the Sn2+ ion, such as tin(II) chloride. *Sulfur dioxide (sometimes also used as an oxidizing agent), ... A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an ... Some elements and compounds can be both reducing or oxidizing agents. Hydrogen gas is a reducing agent when it reacts with non- ...
"Compound Summary for CID 14778 - Calcium Oxide". PubChem.. *^ Gray, Theodore (September 2007). "Limelight in the Limelight". ... Barium oxide. Radium oxide Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F ... Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, ... By contrast, quicklime specifically applies to the single chemical compound calcium oxide. Calcium oxide that survives ...
Heiserman, David L. Exploring Chemical Elements and their Compounds. TAB Books. 1992: 272-274. ISBN 0-8306-3018-X.. ... An experimental proof for negative oxidation states of platinum: ESCA-measurements on barium platinides. Chemical ... Perry, D. L. Handbook of Inorganic Compounds. CRC Press. 1995: 296-298. ISBN 0-8493-8671-3.. ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Niobium and its compounds are thought to be slightly toxic, but niobium poisoning is not known to have occurred. Niobium dust ... Tantalum and its compounds rarely cause injury, and when they do, the injuries are normally rashes.[4] ... Vanadium oxide gives ceramics a golden color, and other vanadium compounds are used as catalysts to produce polymers.[4] ...
... which are made from a mix of ceramic clay and fine particles of barium or strontium ferrite. Although the energy per kilogram ... Other materials such as molded plastic and damped plastic compound baskets are becoming common, especially for inexpensive, low ...
There are diagnostic tools mostly involving the ingestion of barium sulphate to investigate disorders of the GI tract.[50] ... The detection of bitterness warns of poisons-many of a plant's defences are of poisonous compounds that are bitter. Sweetness ...
Related compounds Other cations. Magnesium sulfate. Strontium sulfate. Barium sulfate Related desiccants ... Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO4 and related hydrates. In the form of γ- ... In the refining of zinc, solutions of zinc sulfate are treated with lime to co-precipitate heavy metals such as barium. ... Another calcium compound, calcium hydroxide (Ca(OH)2, portlandite) also exhibits a retrograde solubility for the same ...
... is the inorganic compound with the chemical formula PtF 4. In the solid state, the compound features ... potassium, rubidium, caesium, and barium salts are insoluble in water. Haynes, William M., ed. (2011). CRC Handbook of ... The compound was first reported by Henri Moissan by the fluorination of platinum metal in the presence of hydrogen fluoride. A ... Derek Harry Lohmann (October 1961). The fluorides of platinum and related compounds (Thesis). University of British Columbia. ...
Sneader, Walter (2005). "Plant Product Analogues and Compounds Derived from Them". Drug discovery : a history. Chichester: John ...
"1,4-dihydropyridine - Compound Summary". Pubchem Compound. USA: National Center for Biotechnology Information. 27 March 2005. ...
This is usually in the form of mobile, soluble elements such as barium, strontium, rubidium, calcium and some rare earth ... it is not restricted to the rocks which are changed by addition of chemical elements and minerals or hydrous compounds. In all ... Dickson, F. W., 1996, Porphyroblasts of barium-zoned K-feldspar and quartz, Papoose Flat California, genesis and exploration ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... In aqueous solution, like compounds of other late lanthanides, soluble ytterbium compounds form complexes with nine water ... 2 oxidation state occurs only in solid compounds and reacts in some ways similarly to the alkaline earth metal compounds; for ... Marignac suspected that ytterbia was a compound of a new element that he called "ytterbium".[9][23][25][26][27] ...
Barium sulfate is well known because it does not dissolve in water or acids. Barium compounds are quite heavy. Barium compounds ... Chemical compounds[change , change source]. See also: Category:Barium compounds. Barium is too reactive as a metal, so it is ... Barium is also used in spark plug wire. As chemical compounds[change , change source]. Certain compounds of barium, such as ... Barium also reacts very fast with acids to make a barium salt and hydrogen. Barium can form barium peroxide if it is burned in ...
"56 Barium". Elements.vanderkrogt.net. Retrieved 2008-09-12.. *^ "17 Chlorine". Elements.vanderkrogt.net. Retrieved 2008-09-12. ... "Exploring Chemical Elements and their Compounds. New York: TAB Books. pp. 150-152. ISBN 0-8306-3018-X. .. ... Barium 1772 W. Scheele 1808 H. Davy Scheele distinguished a new earth (BaO) in pyrolusite and Davy isolated the metal by ... Humphry Davy thought in 1800 that silica was a compound, not an element, and in 1808 suggested the present name. In 1811 Louis- ...
Chemical compounds are listed separately at list of organic compounds, list of inorganic compounds or list of biomolecules. ... Baddeleyite Barite Barium barometer Basalt base Bastnasite battery Bauxite Beckerite Benzene benzene ring Berkelium Beryl ... of elements named after places List of inorganic compounds List of inorganic compounds by element List of organic compounds ... symbol alchemist Alchemy alcohol aldehyde Alexandrite Alfred Stock Alfred Werner alicyclic compound aliphatic compound Alkali ...
Barium 56. Ba. 137.327(7) isotopes Lanthanum 57. La. 138.90547(7) isotopes Cerium 58. Ce. 140.116(1) isotopes Praseodymium. 59 ... Chemical compounds. *{{నైట్రేట్లు}}. *{{Perchlorrates}}. *{{Persistent carbene}}. Legends. *{{periodic table legend}} (multiple ...
Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium ... Germane (GeH4) is a compound similar in structure to methane. Polygermanes-compounds that are similar to alkanes-with formula ... Precautions for chemically reactive germanium compoundsEdit. Some of germanium's artificially-produced compounds are quite ... Additionally Ge2Cl6 and some higher compounds of formula GenCl2n+2 are known.[28] The unusual compound Ge6Cl16 has been ...
Louis Jacques Thénard first produced hydrogen peroxide in 1818 by reacting barium peroxide with nitric acid.[9] Hydrogen ... Peroxide-based bleaches, whose active agent is oxygen, almost always from the decomposition of a peroxide compound like ... Bleaches work by reacting with many colored organic compounds, such as natural pigments, and turning them into colorless ones. ... Chlorine-based bleaches, whose active agent is chlorine, usually from the decomposition of some chlorine compound like ...
Related compounds Other anions Calcium sulfide. Calcium hydroxide Other cations Beryllium oxide. Magnesium oxide. Strontium ... Barium oxide Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ...
Barium and compounds. CAS No: Varies. NOTE:. (1) Efficacy of Medical Tests has not been evaluated.. (2) NIOSH references ... Barium and compounds. Editor(s). /Author(s). Specific Medical Test(s) or Examination(s). Reference(s). ...
Barium and barium compounds  Choudhury, Harlal; Cary, Richard; World Health Organization; International Programme on Chemical ...
As no data on the acute inhalation toxicity of either of these two barium compounds exist, the IDLH is based on a calculated ... Therefore, the revised IDLH for soluble barium compounds is 50 mg Ba/m3 based on acute oral toxicity data in humans [Reeve 1979 ... No inhalation toxicity data are available on which to base an IDLH for soluble barium compounds. ... Reeve AL [1979]. Barium. In: Friberg L, et al., eds. Handbook of toxicology of metals. New York, NY: Elsevier/North Holland, pp ...
barium compound solubility. updated sat 23 nov 02. iandol on wed 20 nov 02. Hello friends, Just read an interesting comment ... Wish I could find the Barium Equivalent. Best regards, Ivor Lewis. Ron Roy on fri 22 nov 02. Barium is not a refractory in high ... like barium? Thanks, Paul Lewing John Hesselberth on wed 20 nov 02. Hi Paul, I have no data on this. Ive never tested for lead ... solubility of Barium Carbonate in a clear Felspathic glaze, in the range = 2%-40% of glaze volume. When people mention the word ...
The FSM of HA was separated successfully from the substrate by means of dissolution of Ba-compound with water. Our novel ... We can deposit the Ba-compound sacrificial layer only in 1 hour followed with the direct deposition of crystallized HA layer, ... In this short report, we proposed a novel sacrificial layer, heatproof and water-soluble Ba-compound, which makes the direct ... "Direct Process to Prepare Crystallized Freestanding Membranes of Hydroxyapatite Using Sacrificial Layer of Barium-Compounds" ...
Barium compounds explanation free. What is Barium compounds? Meaning of Barium compounds medical term. What does Barium ... Looking for online definition of Barium compounds in the Medical Dictionary? ... barium. (redirected from Barium compounds). Also found in: Dictionary, Thesaurus, Encyclopedia. barium. (Ba) [bar´e-um] a ... Barium compounds , definition of Barium compounds by Medical dictionary https://medical-dictionary.thefreedictionary.com/Barium ...
Our main inorganic materials are phosphorous compounds, silicates, barium compounds and chromium compounds. Our products make ... Barium Compounds):Nippon Chemical Industrial produces inorganic materials, organic materials, agricultural materials and ...
... calcium is what? ... What is the formula for the ions in the compounds BaSO4 and Li2CO3 BaSO4 has barium ions (Ba2+, Sulfate ions SO42-, and Lithium ... He weighs out 0.945 g potassium hydrogen phthalate (KHC8H4O4, treat this as a monoprotic acid). It requires 33.9 mL of barium ... A student is asked to standardize a solution of barium hydroxide. ...
BARIUM AND BARIUM COMPOUNDS Barium and barium compounds. (Concise international chemical assessment document ; 33) toxicity ... Barium Compounds , Steubenville, OH Barium Chemicals, Inc.. Used to manufacture other barium compounds and is used by the ... Barium Compounds , Barium compounds are found primarily in two mineral ores-barite, which contains the sulfate compound, and ... Barium sulfate , chemical compound , In barium: Compounds. Barium sulfate (BaSO 4) is a white, heavy insoluble powder that ...
Barium is non-combustible, but may decompose upon heating to produce corrosive or toxic fumes (HSDB 2007a). Elemental barium ... Barium is a silvery-white to yellowish odorless metal that is found in nature primarily as barium sulfate or barium carbonate ( ... and barium sulfide may be flammable in moist air (ATSDR 2005). ... Other barium compounds (barium acetate, barium chloride, barium ... barium sulfate and barium carbonate. Water-soluble barium compounds (barium acetate, barium chloride, barium hydroxide, barium ...
As barium compounds emit a green light when burned, barium salts are often used in green pyrotechnic formulas, but the nitrate ... Due to the relatively high atomic number (Z = 56) of barium, its compounds absorb X-rays more strongly than compounds derived ... Because barium sulfate is the least toxic salt of barium due to its insolubility, wastes containing barium salts are sometimes ... Although barium is a heavy metal, and its water-soluble compounds are often highly toxic, the low solubility of barium sulfate ...
Barium and barium compounds. QV 618 2001CH Chlorinated naphthalenes. QV 618 2005TI Tin and inorganic tin compounds. QV 618 86WH ... Barium and barium compounds. Contributor(s): Choudhury, Harlal , Cary, Richard , World Health Organization , International ... Barium -- toxicity , Barium compounds -- toxicity , Risk assessment , Environmental exposure , Chemical Toxicology and ...
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; BARIUM IONS; BISMUTH COMPOUNDS; CERAMICS; ... Journal Article: Effect of diamagnetic barium substitution on magnetic and photovoltaic properties in multiferroic BiFeO{sub 3} ... Title: Effect of diamagnetic barium substitution on magnetic and photovoltaic properties in multiferroic BiFeO{sub 3} ... CONCENTRATION RATIO; CURRENT DENSITY; ELECTRIC CONDUCTIVITY; FERRITES; INDIUM COMPOUNDS; IRON OXIDES; MAGNETIZATION; ...
Environmental: Detection of barium compounds in environmental samples. (8-11) Case classification * Suspected: A case in which ... Ingestion of certain forms of barium (e.g., barium carbonate or barium fluoride) in toxic amounts can lead to gastrointestinal ... Toxicological Profile for Barium and Barium Compounds[online]. 2007. [cited 2013 March 27]. Available from URL: http://www. ... Biologic: An elevated urinary barium concentration. A urinary barium concentration greater than the 95th percentile for the ...
Barium sulfate is well known because it does not dissolve in water or acids. Barium compounds are quite heavy. Barium compounds ... Chemical compounds[change , change source]. See also: Category:Barium compounds. Barium is too reactive as a metal, so it is ... Barium is also used in spark plug wire. As chemical compounds[change , change source]. Certain compounds of barium, such as ... Barium also reacts very fast with acids to make a barium salt and hydrogen. Barium can form barium peroxide if it is burned in ...
Match each name below with the following microscopic pictures of that compound in aqueous solution. a. barium n.... Chemistry ... Which of the following is a characteristic of binary ionic compounds? a. Two different metals are present. b. T.... General, ... How would you prepare the following compound using a Robinson annulation reaction between a β-diketone and an .... Organic ... Name two anions that combine with Al3+ ion to produce water-soluble compounds.. Chemistry & Chemical Reactivity ...
Barium Enema. X-RAY examination of LOWER GASTROINTESTINAL TRACT. Imaging is done while a BARIUM COMPOUND (e.g., BARIUM SULFATE ... Barium vs. BariumFerumoxsil. The purpose of this study is to determine whether Barium or BariumFerumoxsil is better for fecal ... Inorganic compounds that contain barium as an integral part of the molecule. ... Barium Radioisotopes. Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights ...
Barium compounds. 69,256. 12. 10. Chromium compounds (except chromite ore mined in the transvaal region). 65,277. 21. ...
Ammonium Compounds. Antimony Compounds. Arsenic Compounds. B. Barium Compounds. Beryllium Compounds. Bismuth Compounds. Boric ... Titanium Compounds. Tungsten Compounds. V. Vanadium Compounds. W. Water. Z. Zeolites. Zinc Compounds. Zirconium Compounds. ... Iodine and Iodine Compounds. Iron Compounds. L. Lead Compounds. Lime and Limestone. Lithium Compounds. M. Magnesium Compounds. ... Manganese Compounds. Mercury Compounds. Metallic Glasses. Mica. Molybdenum Compounds. N. Nickel Compounds. Niobium Compounds. ...
Barium.. Barium Compounds.. Barrier Polymers.. Batteries, Introduction.. Batteries, Primary Cells.. Batteries, Secondary Cells. ...
Barium compounds. 99,717. 11. 10. Cresol (mixed isomers). 89,602. 9. The ten facilities that reported the largest quantity of ... Chromium compounds (except chromite ore mined in the transvaal region). 108,142. 8. ...
It and barium have some uses in medicine, for example "barium meals" in radiographic imaging, whilst strontium compounds are ... "Barium and Barium Compounds". In Ullman, Franz (ed.). Ullmanns Encyclopedia of Industrial Chemistry. Wiley-VCH. doi:10.1002/ ... such as barium nitrate. These in turn are thermally decompressed into barium oxide, which eventually yields pure barium after a ... Barium has some use in vacuum tubes to remove gases,[50] and barium sulfate has many uses in the petroleum industry,[4] as well ...
An alloy of barium with nickel is used in sparkplug wire.. *Barium compounds, and especially barite (barium sulfate), are ... "barium meals" and "barium enemas"). Although the water-soluble compounds of barium are often highly toxic, the extremely low ... Barium and its compounds have a number of applications: *Metallic barium is a "getter" in vacuum tubes, to remove the last ... In addition, barium compounds that are soluble in water or acid are extremely poisonous. At low doses, barium acts as a muscle ...
Fractionation of barium based on solubility. The fractionation of barium compounds based on their solubility was carried out ... Barium and Barium Compounds. Geneva, 2001. [ Links ]. 18. Agency for Toxic Substances and Disease Registry (ATSDR). Public ... For instance, for sample 2 the supposed formation of barium sulfate from a mass of barium of 1.606 g contained in LMW compounds ... The hypothesis of this work is that the chemical species of barium in the Brazil nuts would be barium selenate or barium ...
Barium and barium compounds. Concise International chemical assessment document.. (11) RIVM (2006) Chemicals in Toys - A ... Other barium salt such as barium chloride and barium nitrate, however, readily dissolves in water. Barium is present surface ... Barium is present in the earths crust, mostly as barium sulphate and barium carbonate. These forms are insoluble in water. ... Barium has few industrial applications. As barium naturally occurs in the environment, traces of barium can be found in toys ...
36 MATERIALS SCIENCE; BARIUM COMPOUNDS; ELECTRONIC STRUCTURE; BORATES; ABSORPTION SPECTRA; CATIONS; EMISSION SPECTRA; ENERGY ... The mechanism of energy transfer between Mn/sup 2 +/ .... Nd/sup 3 +/ in barium borate glass has been investigated. The ... abstractNote = {The mechanism of energy transfer between Mn/sup 2 +/ .... Nd/sup 3 +/ in barium borate glass has been ... TRANSFER; FLUORESCENCE; GLASS; LIFETIME; MANGANESE IONS; NEODYMIUM IONS; VISIBLE RADIATION; ALKALINE EARTH METAL COMPOUNDS; ...
Barium.. Barium Compounds.. Barrier Polymers.. Batteries, Introduction.. Batteries, Primary Cells.. Batteries, Secondary Cells. ...
Barium Chloride Dihydrate BaCl2 • 2H2O bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples ... Barium compounds, n.o.s.. IMDG, IATA. BARIUM COMPOUND, N.O.S. (Barium chloride dihydrate). Transport hazard class(es). DOT. ... Soluble barium compounds are more likely to cause these effects than insoluble compounds. Inhalation of fumes may cause sore ... 56 Ba 137.327000000 Barium See more Barium products. Barium (atomic symbol: Ba, atomic number: 56) is a Block S, Group 2, ...
  • Barium is most commonly found combined with sulfate and carbonate, but can also form compounds with hydroxide, chloride, nitrate, chlorate, and other negative ions. (lesecuriesvandetram.be)
  • Water-soluble barium compounds (barium acetate, barium chloride, barium hydroxide, barium sulfide) are manufactured from naturally-occurring insoluble barium compounds. (cdc.gov)
  • NIOSH IDLH (immediately dangerous to life or health) = 50 mg/m 3 for barium chloride (NIOSH 2005). (cdc.gov)
  • This makes hydrogen sulfide and barium chloride. (wikipedia.org)
  • The barium chloride is melted and electrolyzed to get liquid barium metal. (wikipedia.org)
  • Barium carbonate, the other ore of barium, is dissolved in hydrochloric acid to make barium chloride and carbon dioxide. (wikipedia.org)
  • The barium chloride is melted and electrolyzed, making barium metal. (wikipedia.org)
  • The salts of barium (particularly its nitrate, chloride, and chlorate) may be used in fireworks to produce green colors. (newworldencyclopedia.org)
  • In industry, barium chloride is used mainly to purify brine solutions in chlorine plants and to manufacture heat-treatment salts, pigments, and other barium salts. (newworldencyclopedia.org)
  • Barium is commercially produced through the electrolysis of molten barium chloride (BaCl 2 ). (newworldencyclopedia.org)
  • This occurs because of the use of sodium cyanide (NaCN), potassium cyanide (KCN), as well as barium chloride (BaCl), which is used in the mixtures to prepare the bath. (thefreedictionary.com)
  • Calcium chloride and barium chloride solutions were prepared in deionized water, with gentle stirring, until complete dissolution, at 740 and 42 g/l in water at 20[degrees]C, respectively. (thefreedictionary.com)
  • IR] channel inhibitor barium chloride were tested on the vasodilator responses to DG, Danshen and Gegen. (thefreedictionary.com)
  • What is sodium chloride and barium chloride? (answers.com)
  • The term usually refers to compounds with the Cl - ion such as sodium chloride. (answers.com)
  • However it is sometim … es applied to covalent compounds such as methyl chloride. (answers.com)
  • It is produced from the reaction between sulfuric acid and barium chloride. (chemicalbook.com)
  • Avoid by all means mixing it with barium chloride (highly toxic) to avoid poisoning after absorption. (chemicalbook.com)
  • Just read an interesting comment relating to the behaviour of Barium Oxide in glazes. (potters.org)
  • At first it will turn black, then white as barium oxide is formed. (wikipedia.org)
  • Barium reacts with many other metal oxides and sulfides to make barium oxide or sulfide and the metal. (wikipedia.org)
  • Charge-state analysis of small barium-oxide clusters by X-ray absorption spectroscopy. (bioportfolio.com)
  • Small barium-oxide clusters BamOn+ are studied by mass spectrometry and X-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. (bioportfolio.com)
  • Barium ferrate, BaFeO4, can be prepared by adding barium oxide to a mixture NaClO and ferric nitrate at room temperature (29± 1 °C). The precipitate formed can then be filtered and washed with a 1:1 hexane and diethyl ether mixture in order to remove water and other impurities. (wikipedia.org)
  • Barium oxide is used for coating cathodes in fluorescent lamps, and the hydroxide, a chemical base, is used to clean up acid spills. (newworldencyclopedia.org)
  • Upon burning in air or oxygen , it produces not just barium oxide (BaO) but also barium peroxide. (newworldencyclopedia.org)
  • At elevated temperatures, barium nitrate decomposes to barium oxide: 2Ba(NO3)2 → 2BaO + 4NO2 + O2 Barium nitrate is used in the production of BaO-containing materials. (wikipedia.org)
  • It is also used in the manufacturing process of barium oxide, the vacuum tube industry and for green fire in pyrotechnics. (wikipedia.org)
  • It can be obtained from the reaction of sulfur dioxide, SO2, with either barium oxide, BaO, or barium hydroxide, Ba(OH)2. (reference.com)
  • Barium peroxide can be made by the reversible reaction of O 2 with barium oxide . (sciencemadness.org)
  • Barium sulfate (or sulphate) is the inorganic compound with the chemical formula BaSO. (lesecuriesvandetram.be)
  • About 80% of the world's barium sulphate production, mostly purified mineral, is consumed as a component of oil well drilling fluid . (wikipedia.org)
  • However, barium sulphate is insoluble and used for body imaging. (sciencephoto.com)
  • 9. The method according to claim 8, characterized in that the light-scattering material particles are calcium carbonate, calcium oxalate, calcium sulphate, barium sulphate or mixtures of them. (freepatentsonline.com)
  • Recovery of barium from acid-digested tissues can be impaired when organic ions react with barium and interfere with the formation of the barium sulfate precipitate. (cdc.gov)
  • If solid barium sulfate is shaken with water, a small amount of barium ions and sulfate ions break away from the surface of the solid and go into solution. (lesecuriesvandetram.be)
  • Barium ions (Ba 2+ ) migrate to the cathode, where they gain electrons (e − ) and are converted to metallic barium. (newworldencyclopedia.org)
  • What are the charges on the ions in an ionic compound containing the elements barium and bromine? (bartleby.com)
  • The compound is made up of a single barium ion bonded to two bromide ions with ch. (reference.com)
  • Its ions plan an essential role in manipulating important biological phosphate compounds such as ATP, DNA , and RNA . (wikibooks.org)
  • Barium nitrate is the inorganic compound with the chemical formula Ba(NO3)2. (wikipedia.org)
  • Barium nitrate is manufactured by two processes that start with the main source material for barium, the carbonate. (wikipedia.org)
  • the high density of barium nitrate results in baratol being quite dense as well. (wikipedia.org)
  • Barium nitrate mixed with aluminium powder, a formula for flash powder, is highly explosive. (wikipedia.org)
  • Barium nitrate was also a primary ingredient in the "SR 365" incendiary charge used by the British in the De Wilde incendiary ammunition with which they armed their interceptor fighters, such as the Hawker Hurricane and Supermarine Spitfire, during the Battle of Britain. (wikipedia.org)
  • Like all soluble barium compounds, barium nitrate is toxic by ingestion or inhalation. (wikipedia.org)
  • The B. Mk VI 'De Wilde' incendiary (named after the original Belgian inventor but in fact completely redesigned by Major Dixon), which contained 0.5 grams of SR 365 (a composition including barium nitrate which ignited on impact with the target) was twice as effective as these, scoring one in five. (wikipedia.org)
  • and nitrate, vanadium and zinc compounds. (osha.gov)
  • Barium nitrate Analysis of the pure. (fazendomedia.com)
  • Lithium Nitrate Synonyms LiNO3 , lithiumnitrate, Nitric acid lithium salt, NITRIC ACID, LITHIUM SALT, Nitric acid, lithium salt (1:1) CAS No. 7790-69-4 Color & Physical Form White crystalline powder Assay Min 98.0% Barium (Ba. (fazendomedia.com)
  • Barium nitrate is a salt represented by the chemical formula Ba(NO3)2. (reference.com)
  • Elemental barium and barium sulfide may be flammable in moist air (ATSDR 2005). (cdc.gov)
  • The combination of barium sulfate and zinc sulfide (ZnS) is the inorganic pigment called lithopone . (wikipedia.org)
  • From profound hypokalemia to life-threatening hyperkalemia: a case of barium sulfide poisoning. (cdc.gov)
  • So barium sulfate is reduced by carbon to make barium sulfide and carbon dioxide . (wikipedia.org)
  • The barium sulfide is dissolved in hydrochloric acid . (wikipedia.org)
  • The second requires combining barium sulfide with nitric acid. (wikipedia.org)
  • Lithopone, a pigment containing barium sulfate and zinc sulfide, has good covering power, and does not darken in the presence of sulfides. (radiochemistry.org)
  • Upon co-heating with carbon (pulverized coal) to 800 ℃, it is reduced to soluble barium sulfide and carbon monoxide. (chemicalbook.com)
  • Barium Sulfate: 4: Benzene: 6 6: Boron Trioxide: 2 3: Calcium Bromide: 2: Crude Oil: 9 20: C 9 H 20 is the chemical formula for nonane. (lesecuriesvandetram.be)
  • Barium is chemically similar to calcium but is more reactive. (newworldencyclopedia.org)
  • In the brick, tile, earthenware and pottery industries barium carbonate is added to clays to precipitate soluble salts (calcium sulfate and magnesium sulfate) that cause efflorescence. (wikipedia.org)
  • Calcium compounds. (electronics.ca)
  • Combinations of chemicals create shades-strontium plus copper results in violet, calcium, and barium emit yellow. (worldsciencefestival.com)
  • Calcium or barium carbonate does not. (sciencemadness.org)
  • Barium reacts with water to make barium hydroxide and hydrogen gas . (wikipedia.org)
  • Barium also reacts very fast with acids to make a barium salt and hydrogen. (wikipedia.org)
  • The formula for barium hydroxide is Ba(OH)2, meaning one atom of barium is present along with two each of oxygen and hydrogen. (reference.com)
  • Combining the molar masses of one barium atom along with two atoms each of hydrogen and oxygen yields a total molar mass of 171.34. (reference.com)
  • Barium metal (Ba) reacts readily with water to form barium hydroxide (Ba(OH)2) and hydrogen. (sciencephoto.com)
  • Barium oxidizes in air, reacts vigoroulsy with water to form the hydroxide, liberating hydrogen. (wikibooks.org)
  • Barium peroxide can be used to produce highly concentrated hydrogen peroxide via its reaction with conc. (sciencemadness.org)
  • As a member of the family of alkaline earth metals, barium lies in group two (former group 2A) of the periodic table, between strontium and radium . (newworldencyclopedia.org)
  • Based on the model and the survey, Czochralski crystal growth of strontium barium niobate (SBN:60) is recommended. (unt.edu)
  • The main ingredients in chemtrails are Aluminum, Barium and Strontium. (abovetopsecret.com)
  • I tested my rainwater in a plastic NWS rain gauge set high on a pole, and got 1010 ug/l aluminum, with substantial amounts of barium and strontium included, where it should be non-detectable. (abovetopsecret.com)
  • Barium and strontium compounds. (electronics.ca)
  • Hexavalent chromium compounds are irritants and corrosive. (dickblick.com)
  • Samples were analyzed for 31 metals with five selected elements (barium, beryllium, cadmium, lead and nickel) given emphasis. (cdc.gov)
  • Samples were analyzed for up to 31 metals with five selected elements (barium, beryllium, cadmium, lead and nickel) given emphasis. (cdc.gov)
  • Barium sulfate is incompatible with aluminum and potassium (Lewis 2000). (cdc.gov)
  • Excessive blood levels of barium result in decreased blood potassium (hypokalemia), which may cause adverse cardiovascular and muscular effects such as tachycardia, increased or decreased blood pressure, muscle weakness, and paralysis. (cdc.gov)
  • Potassium ferrate Ferrate(VI) Barium Briggs, J. G. R. (2005). (wikipedia.org)
  • Barium sulfate is a compound used as an xray contrast medium that occurs in nature as the mineral barite. (lesecuriesvandetram.be)
  • It is an inorganic compound that is present as Barite, a mineral which is the primary commercial source of Barium as well as materials that are manufactured from it. (lesecuriesvandetram.be)
  • It is a white crystalline solid that is odorless and insoluble in occurs as the mineral barite, which is the main commercial source of barium and materials prepared from it. (lesecuriesvandetram.be)
  • It occurs as the mineral barite , which is the main commercial source of barium and materials prepared from it. (lesecuriesvandetram.be)
  • Barium is found as barium sulfate (barite) and barium carbonate (witherite) in the ground. (wikipedia.org)
  • The most common naturally occurring minerals of barium are barite (barium sulfate, BaSO 4 ) and witherite (barium carbonate, BaCO 3 ). (newworldencyclopedia.org)
  • It is primarily found in and extracted from the mineral barite , a crystalline form of barium sulfate (BaSO 4 ). (newworldencyclopedia.org)
  • country of origin: China Why do we use barite in barium compounds? (fazendomedia.com)
  • II-type barium sulfate: it is refined from barite sulfate type minerals: barium sulfate. (chemicalbook.com)
  • 2. A radiopaque solution containing barium sulfate that is used to visualize the gastrointestinal tract on x-rays. (thefreedictionary.com)
  • Although barium is a heavy metal , and its water-soluble compounds are often highly toxic, the low solubility of barium sulfate protects the patient from absorbing harmful amounts of the metal. (wikipedia.org)
  • It should be noted, however, that barium and its water-soluble compounds are toxic. (newworldencyclopedia.org)
  • Addition of a soluble sodium barium salt to an alkali metal ferrate solution produces a maroon precipitate of barium ferrate, a crystal which has the same structure as barium chromate and has approximately the same solubility. (wikipedia.org)
  • Barium carbonate has a solubility of 0.0024g/100ml and a pKa of maybe 8 or 9. (sciencemadness.org)
  • Beryllium nitride, also called triberyllium nitride, is the chemical compound with the molecular formula Be3N2 and a molar mass is 55.06 grams per mole. (reference.com)
  • The irreversible reaction of digesting barium chromate with a solution of sodium ferrate forms barium ferrate, and the color of the solution is changed from red to yellow due to the sodium chromate that is also formed. (wikipedia.org)
  • Solutions of sulfate salts such as Epsom salts or sodium sulfate may be given as first aid for barium poisoning, as they precipitate the barium as the insoluble (and non-toxic) barium sulfate. (wikipedia.org)
  • Sodium sulfate can be given in case of ingestion to precipitate out the barium as barium sulfate. (hazard.com)
  • Barium sulfate (Ⅰ type and Ⅱ type) are both insoluble in water, organic solvent, acid o and sodium hydroxide. (chemicalbook.com)
  • and sodium compounds, bright yellow. (worldsciencefestival.com)
  • Barium can form barium peroxide if it is burned in air. (wikipedia.org)
  • If carbon dioxide is passed through water on which hydrated barium is suspended, barium ferrate will decompose completely to form barium carbonate, ferric hydroxide and oxygen gas. (wikipedia.org)
  • It combines with other chemicals such as sulfur or carbon and oxygen to form barium compounds. (cdc.gov)
  • From the standpoint of deriving an appropriate IDLH, the soluble Ba compounds BaCl2 and Ba(NO3)2 prove to be the most acutely toxic. (cdc.gov)
  • That is derived from mineral barium which is a toxic alkaline metal found naturally on earth. (lesecuriesvandetram.be)
  • Barium is non-combustible, but may decompose upon heating to produce corrosive or toxic fumes (HSDB 2007a). (cdc.gov)
  • Ingestion of certain forms of barium (e.g., barium carbonate or barium fluoride) in toxic amounts can lead to gastrointestinal signs and symptoms (e.g., vomiting, abdominal pain, and watery diarrhea). (cdc.gov)
  • Certain compounds of barium, such as barium sulfate , are not toxic and can be put in the body. (wikipedia.org)
  • The compounds of barium, particularly the water-soluble ones, are toxic. (newworldencyclopedia.org)
  • All waters containing acid soluble barium compounds are known to be toxic. (environmental-expert.com)
  • It is a toxic substance, as are many other chemicals containing barium. (reference.com)
  • Barium has no biological role and barium compounds are considered highly toxic. (sciencephoto.com)
  • Barium sulfate is the only non-toxic barium salts. (chemicalbook.com)
  • Association between concentrations of barium and aluminum in placental tissues and risk for orofacial clefts. (bioportfolio.com)
  • Natural exposure to and increasing use of barium and aluminum in various products, such as plastics, rubber, and food additives, raise concerns for their potential health impacts on pregnant women and. (bioportfolio.com)
  • Aluminum Compounds, Survey. (wiley.com)
  • This is significant because, unlike such elements as Aluminum, Barium is not commonly found in our soils and water. (abovetopsecret.com)
  • Barium sulfate - an inorganic compound with the chemical formula BaSO 4 - is a highpurity, synthetic additive that is produced in a carefully controlled manufacturing process. (lesecuriesvandetram.be)
  • Barium carbonate is the inorganic compound with the formula BaCO3. (wikipedia.org)
  • Barium bromide is an inorganic compound with the molecular formula BaBr2. (reference.com)
  • Barium iodide is an inorganic compound represented by the chemical formula BaI2. (reference.com)
  • Barium peroxide is the inorganic compound with the formula BaO 2 . (sciencemadness.org)
  • Primary experiments indicate an improvement in the purity of the synthesized barium ferrate by performing the reaction at low temperature in the absence of carbon dioxide and by rapidly filtering and drying the precipitate. (wikipedia.org)
  • The first involves dissolving barium carbonate in nitric acid, allowing any iron impurities to precipitate, then filtered, evaporated, and crystallized. (wikipedia.org)
  • At room temperature, barium is a silvery-white odorless metal that takes on a silvery-yellow color when exposed to air. (cdc.gov)
  • Barium is a silvery-white metal which exists in nature only in ores containing mixtures of elements. (cdc.gov)
  • Elements & Compounds) a soft silvery-white metallic element of the alkaline earth group. (thefreedictionary.com)
  • Barium is a silvery-white metal that can be found in the environment, where it exists naturally.Ii is very light and its density is half that of iron. (wikibooks.org)
  • 1961) measured barium in tissues gravimetrically following digestion of 15-20 grams of sample in a 2:1 (by volume) mixture of sulfuric and nitric acids. (cdc.gov)
  • Barium sulfate is well known because it does not dissolve in water or acids. (lesecuriesvandetram.be)
  • Prior to drying, barium ferrate can be easily decomposed by all soluble acids, including carbonic acid. (wikipedia.org)
  • barium sulfate a water-insoluble salt, BaSO4, used as an opaque contrast medium in radiography of the digestive tract. (thefreedictionary.com)
  • Off the shelf Pebax® barium sulfate compounds In an effort to reduce lead times, Compounding Solutions now offers off the shelf Pebax® SA01 MED and 20wt% barium sulfate (BaSO4) compounds. (lesecuriesvandetram.be)
  • Barium sulfate definition is a crystalline insoluble compound BaSO4 that is used especially as a pigment and extender, as a filler (as in fluids used in gas and oil drilling), and as a substance opaque to Xrays in medical photography of the digestive tract. (lesecuriesvandetram.be)
  • The chemical formula for Barium Sulfate is BaSO4. (lesecuriesvandetram.be)
  • Barium sulfate has its chemical formula BaSO4. (chemicalbook.com)
  • It also reacts with carbon and nitrogen at a high temperature to make barium cyanide. (wikipedia.org)
  • The following is the reaction for the synthesis of barium ferrate using the wet method: Ba(OH)2 (aq) → BaO(s) + H2O NaClO + FeNO3 + BaO(s) → BaFeO4 + NaCl + NO The reaction for the formation of barium ferrate is vigorous and very strong chlorine odor. (wikipedia.org)
  • Thoroughly dried barium ferrate is decomposed completely by hydrochloric acid, releasing chlorine. (wikipedia.org)
  • Chlorides are compounds that contain chlorine in the 1- oxidation state. (answers.com)
  • Barium sulfate (BaSO 4) is a white, heavy insoluble powder that occurs in nature as the mineral 80 percent of world consumption of barium sulfate is in drilling muds for oil. (lesecuriesvandetram.be)
  • Considering both the contents of barium and sulfur in different fractions and stoichiometric calculations it was also possible to assume that barium occurs mainly in the BaSO 4 form. (scielo.br)
  • Shankle R, Keane JR. Acute paralysis from inhaled barium carbonate. (cdc.gov)
  • Pure barium does not exist in nature as it is oxidised, often as baryta. (thefreedictionary.com)
  • A thin layer of barium sulfate called baryta is first coated on the base surface of most photographic paper to increase the reflectiveness of the image, with the first such paper introduced in 1884 in Germany . (wikipedia.org)
  • Antoine Lavoisier changed the name to baryta , from which "barium" was derived to describe the metal. (newworldencyclopedia.org)
  • Barium is reactive, and if you put pure barium metal in the air, it will react with oxygen . (wikipedia.org)
  • Barium is used to remove oxygen from cathode ray tubes and vacuum tubes . (wikipedia.org)
  • Alkaline sulfates decompose barium ferrate that has not been dried, forming barium sulfate, ferric hydroxide and oxygen gas. (wikipedia.org)
  • For instance, metallic barium is used to remove traces of oxygen from vacuum tubes. (newworldencyclopedia.org)
  • To store barium in its pure form, protecting it from oxidation by the air, it should be kept under a petroleum-based fluid (such as kerosene) or other suitable oxygen -free liquid that excludes air. (newworldencyclopedia.org)
  • The charcoal-oxygen compound that results needs only a small amount of energy to combust. (popularmechanics.com)
  • Two main types of tests are conducted with the use of barium: the barium meal or barium swallow, for radiologic examination of the upper gastrointestinal tract, and the barium enema for examination of the lower gastrointestinal tract. (thefreedictionary.com)
  • Barium is the core constituent in non-radioactive radiocontrast studies (e.g., barium enema, barium swallow), and formulated as a chalky liquid, popularly, a milkshake. (thefreedictionary.com)
  • Other tests that can be used for screening include double-contrast barium enema (an X-ray test), virtual colonoscopy (a type of CT scan), and a stool DNA test (which looks for gene changes seen in cancer cells). (ahealthyme.com)
  • What is a double-contrast barium enema? (ahealthyme.com)
  • It is used in bearing alloys and compounds used as pigments. (thefreedictionary.com)
  • Barium compounds are used in x-raying the stomach and intestines and in making fireworks and white pigments. (thefreedictionary.com)
  • Vibrant green is nickel and it's compounds/salts, or bluey-green may be a copper compound. (nycresistor.com)
  • Barium is part of a group of elements known as the alkaline earth metals . (wikipedia.org)
  • Among all ferrate (IV) salts, barium ferrate sustains unusually facile charge transfer, which is important for the high power domain of alkaline batteries. (wikipedia.org)
  • Barium (chemical symbol Ba , atomic number 56) is a soft, silvery chemical element classified as an alkaline earth metal . (newworldencyclopedia.org)
  • Total concentrations of barium varied from 860 to 2084 mg kg -1 . (scielo.br)
  • Unstable isotopes of barium that decay or disintegrate emitting radiation. (bioportfolio.com)
  • Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes. (bioportfolio.com)
  • Naturally occurring barium is a mixture of seven stable isotopes. (radiochemistry.org)
  • As no data on the acute inhalation toxicity of either of these two barium compounds exist, the IDLH is based on a calculated dose for a 30-minute exposure for man required to attain an intake of 200 mg BaCl2 (as Ba), assuming a minute volume of 7.5 liters/minute and an 80% retention. (cdc.gov)
  • Basis for 'Revised' IDLH: No inhalation toxicity data are available on which to base an IDLH for soluble barium compounds. (cdc.gov)
  • Severe hypokalemia induced by barium toxicity can cause ventricular dysrhythmias (1-7). (cdc.gov)
  • Barium toxicity after exposure to contaminated contrast solution-Goias State, Brazil, 2003. (cdc.gov)
  • The fractionation of barium in Brazil nuts was studied owing to the toxicity of this element and the strong correlation between chemical form and absorption. (scielo.br)
  • In oil paint, barium sulfate is almost transparent, and is used as a filler or to modify consistency. (wikipedia.org)
  • Barium Sulfate is a moderately water and acid soluble Barium source for uses compatible with sulfates. (lesecuriesvandetram.be)
  • Barium sulfite, also known as barium sulfonate or barium(2+) sulfite, is the barium salt of the sulfurous acid H2SO3. (reference.com)
  • All barium compounds that are water or acid soluble are poisonous. (radiochemistry.org)
  • it decomposes in water and is somewhat more volatile than barium. (wikibooks.org)
  • 100 mg boron/L of sample) was reported to interfere with the line emission spectra of barium at 455.50 nm (Mauras and Allain 1979). (cdc.gov)
  • Barium or Boron compounds. (nycresistor.com)
  • Acute barium poisoning in a dog after ingestion of handheld fireworks (party sparklers). (bioportfolio.com)
  • To report a case of acute barium poisoning in a dog subsequent to ingestion of a common handheld pyrotechnic (sparkler). (bioportfolio.com)
  • Molecular compounds are between nonmetals. (lesecuriesvandetram.be)
  • This compound group is defined by the SMILES string 'C(C(C(C(C(F)(F)S(=O)(=O)N)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F'. For more information on SMILES, see https://en.wikipedia.org/wiki/Simplified_molecular-input_line-entry_system . (pharosproject.net)
  • For more information on SMILES, see https://en.wikipedia.org/wiki/Simplified_molecular-input_line-entry_system . (pharosproject.net)
  • This compound group is defined by the SMILES string 'C1=CC(=C(C=C1Cl)Cl)OCC(=O)O'. For more information on SMILES, see https://en.wikipedia.org/wiki/Simplified_molecular-input_line-entry_system . (pharosproject.net)
  • I-type barium sulfate: it is white loose powder and is odorless and tasteless. (chemicalbook.com)
  • Figure 1 is a white powder of barium sulfate. (chemicalbook.com)
  • NO 513-77-9 ►Product Description Barium carbonate Barium carbonate (BaCO3), also known as witherite, is a chemical compound used in rat poison, bricks, ceramic glazes and cement. (pickjoomla.com)
  • NH4)2CO3, and soluble carbonates produce white precipitates of Barium Carbonate, BaCO3. (sciencemadness.org)
  • Compound groups are useful because in some cases, lists will instead identify a group of structurally similar compounds (such as lead compounds) as all having the same hazard. (pharosproject.net)