Calcium Sulfate: A calcium salt that is used for a variety of purposes including: building materials, as a desiccant, in dentistry as an impression material, cast, or die, and in medicine for immobilizing casts and as a tablet excipient. It exists in various forms and states of hydration. Plaster of Paris is a mixture of powdered and heat-treated gypsum.Bone Substitutes: Synthetic or natural materials for the replacement of bones or bone tissue. They include hard tissue replacement polymers, natural coral, hydroxyapatite, beta-tricalcium phosphate, and various other biomaterials. The bone substitutes as inert materials can be incorporated into surrounding tissue or gradually replaced by original tissue.Calcium Compounds: Inorganic compounds that contain calcium as an integral part of the molecule.Bone Regeneration: Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone.Silicates: The generic term for salts derived from silica or the silicic acids. They contain silicon, oxygen, and one or more metals, and may contain hydrogen. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th Ed)Absorbable Implants: Implants constructed of materials designed to be absorbed by the body without producing an immune response. They are usually composed of plastics and are frequently used in orthopedics and orthodontics.Biocompatible Materials: Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.Dental Cements: Substances used to bond COMPOSITE RESINS to DENTAL ENAMEL and DENTIN. These bonding or luting agents are used in restorative dentistry, ROOT CANAL THERAPY; PROSTHODONTICS; and ORTHODONTICS.Aluminum Compounds: Inorganic compounds that contain aluminum as an integral part of the molecule.Subcutaneous Tissue: Loose connective tissue lying under the DERMIS, which binds SKIN loosely to subjacent tissues. It may contain a pad of ADIPOCYTES, which vary in number according to the area of the body and vary in size according to the nutritional state.Calcium Signaling: Signal transduction mechanisms whereby calcium mobilization (from outside the cell or from intracellular storage pools) to the cytoplasm is triggered by external stimuli. Calcium signals are often seen to propagate as waves, oscillations, spikes, sparks, or puffs. The calcium acts as an intracellular messenger by activating calcium-responsive proteins.Materials Testing: The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.Oxides: Binary compounds of oxygen containing the anion O(2-). The anion combines with metals to form alkaline oxides and non-metals to form acidic oxides.Heparitin Sulfate: A heteropolysaccharide that is similar in structure to HEPARIN. It accumulates in individuals with MUCOPOLYSACCHARIDOSIS.Skull: The SKELETON of the HEAD including the FACIAL BONES and the bones enclosing the BRAIN.Calcium Channels: Voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorized as L-, T-, N-, P-, Q-, and R-types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. The L- and T-types are present throughout the cardiovascular and central nervous systems and the N-, P-, Q-, & R-types are located in neuronal tissue.Christian Science: A religion founded by Mary Baker Eddy in 1866 that was organized under the official name of the Church of Christ, Scientist. It includes the practice of spiritual healing.Christianity: The religion stemming from the life, teachings, and death of Jesus Christ: the religion that believes in God as the Father Almighty who works redemptively through the Holy Spirit for men's salvation and that affirms Jesus Christ as Lord and Savior who proclaimed to man the gospel of salvation. (From Webster, 3d ed)Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Multimedia: Materials, frequently computer applications, that combine some or all of text, sound, graphics, animation, and video into integrated packages. (Thesaurus of ERIC Descriptors, 1994)Research Report: Detailed account or statement or formal record of data resulting from empirical inquiry.Sodium: A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.Checklist: Aid for consistent recording of data such as tasks completed and observations noted.Calcium-Calmodulin-Dependent Protein Kinase Type 2: A multifunctional calcium-calmodulin-dependent protein kinase subtype that occurs as an oligomeric protein comprised of twelve subunits. It differs from other enzyme subtypes in that it lacks a phosphorylatable activation domain that can respond to CALCIUM-CALMODULIN-DEPENDENT PROTEIN KINASE KINASE.Powders: Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Formularies as Topic: Works about lists of drugs or collections of recipes, formulas, and prescriptions for the compounding of medicinal preparations. Formularies differ from PHARMACOPOEIAS in that they are less complete, lacking full descriptions of the drugs, their formulations, analytic composition, chemical properties, etc. In hospitals, formularies list all drugs commonly stocked in the hospital pharmacy.Economics, Pharmaceutical: Economic aspects of the fields of pharmacy and pharmacology as they apply to the development and study of medical economics in rational drug therapy and the impact of pharmaceuticals on the cost of medical care. Pharmaceutical economics also includes the economic considerations of the pharmaceutical care delivery system and in drug prescribing, particularly of cost-benefit values. (From J Res Pharm Econ 1989;1(1); PharmacoEcon 1992;1(1))Drug Industry: That segment of commercial enterprise devoted to the design, development, and manufacture of chemical products for use in the diagnosis and treatment of disease, disability, or other dysfunction, or to improve function.Academies and Institutes: Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc.Security Measures: Regulations to assure protection of property and equipment.Legislation, Food: Laws and regulations concerned with industrial processing and marketing of foods.Copyright: It is a form of protection provided by law. In the United States this protection is granted to authors of original works of authorship, including literary, dramatic, musical, artistic, and certain other intellectual works. This protection is available to both published and unpublished works. (from Circular of the United States Copyright Office, 6/30/2008)Sulfates: Inorganic salts of sulfuric acid.Acetates: Derivatives of ACETIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxymethane structure.Phosphorus Metabolism Disorders: Disorders in the processing of phosphorus in the body: its absorption, transport, storage, and utilization.Calcium Carbonate: Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.Hyperphosphatemia: A condition of abnormally high level of PHOSPHATES in the blood, usually significantly above the normal range of 0.84-1.58 mmol per liter of serum.Drug Interactions: The action of a drug that may affect the activity, metabolism, or toxicity of another drug.Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed)Calcium Pyrophosphate: An inorganic pyrophosphate which affects calcium metabolism in mammals. Abnormalities in its metabolism occur in some human diseases, notably HYPOPHOSPHATASIA and pseudogout (CHONDROCALCINOSIS).Chondrocalcinosis: Presence of calcium salts, especially calcium pyrophosphate, in the cartilaginous structures of one or more joints. When accompanied by attacks of goutlike symptoms, it is called pseudogout. (Dorland, 27th ed)Terminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Safety: Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.MississippiMagnesium: A metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.Magnesium Deficiency: A nutritional condition produced by a deficiency of magnesium in the diet, characterized by anorexia, nausea, vomiting, lethargy, and weakness. Symptoms are paresthesias, muscle cramps, irritability, decreased attention span, and mental confusion, possibly requiring months to appear. Deficiency of body magnesium can exist even when serum values are normal. In addition, magnesium deficiency may be organ-selective, since certain tissues become deficient before others. (Harrison's Principles of Internal Medicine, 12th ed, p1936)Colorimetry: Any technique by which an unknown color is evaluated in terms of standard colors. The technique may be visual, photoelectric, or indirect by means of spectrophotometry. It is used in chemistry and physics. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Ships: Large vessels propelled by power or sail used for transportation on rivers, seas, oceans, or other navigable waters. Boats are smaller vessels propelled by oars, paddles, sail, or power; they may or may not have a deck.Water: A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Thoracica: A superorder of marine CRUSTACEA, free swimming in the larval state, but permanently fixed as adults. There are some 800 described species, grouped in several genera, and comprising of two major orders of barnacles: stalked (Pedunculata) and sessile (Sessilia).Osteotomy, Le Fort: Transverse sectioning and repositioning of the maxilla. There are three types: Le Fort I osteotomy for maxillary advancement or the treatment of maxillary fractures; Le Fort II osteotomy for the treatment of maxillary fractures; Le Fort III osteotomy for the treatment of maxillary fractures with fracture of one or more facial bones. Le Fort III is often used also to correct craniofacial dysostosis and related facial abnormalities. (From Dorland, 28th ed, p1203 & p662)

Effects of magnesia and potassium sulfate on gypsum-bonded alumina dental investment for high-fusing casting. (1/142)

The purpose of this study was to improve the characteristics of gypsum-bonded alumina investments using magnesia and potassium sulfate as chemical additives. Magnesia content improved fluidity, delayed setting reaction, increased green strength, and decreased setting expansion, when mixed with distilled water. When the investment was mixed with potassium sulfate, the setting time and setting expansion were reduced, and the thermal expansion increased, however, the green strength decreased. Therefore, the investment with a small amount of magnesia mixed with potassium sulfate was considered a suitable composition, having adequate setting behavior, enough green strength and sufficient compensate expansion for casting.  (+info)

Amsorb: a new carbon dioxide absorbent for use in anesthetic breathing systems. (2/142)

BACKGROUND: This article describes a carbon dioxide absorbent for use in anesthesia. The absorbent consists of calcium hydroxide with a compatible humectant, namely, calcium chloride. The absorbent mixture does not contain sodium or potassium hydroxide but includes two setting agents (calcium sulphate and polyvinylpyrrolidine) to improve hardness and porosity. METHODS: The resultant mixture was formulated and subjected to standardized tests for hardness, porosity, and carbon dioxide absorption. Additionally, the new absorbent was exposed in vitro to sevoflurane, desflurane, isoflurane, and enflurane to determine whether these anesthetics were degraded to either compound A or carbon monoxide. The performance data and inertness of the absorbent were compared with two currently available brands of soda lime: Intersorb (Intersurgical Ltd., Berkshire, United Kingdom) and Dragersorb (Drager, Lubeck, Germany). RESULTS: The new carbon dioxide absorbent conformed to United States Pharmacopeia specifications in terms of carbon dioxide absorption, granule hardness, and porosity. When the new material was exposed to sevoflurane (2%) in oxygen at a flow rate of 1 l/min, concentrations of compound A did not increase above those found in the parent drug (1.3-3.3 ppm). In the same experiment, mean +/-SD concentrations of compound A (32.5 +/- 4.5 ppm) were observed when both traditional brands of soda lime were used. After dehydration of the traditional soda limes, immediate exposure to desflurane (60%), enflurane (2%), and isoflurane (2%) produced concentrations of carbon monoxide of 600.0 +/- 10.0 ppm, 580.0 +/- 9.8 ppm, and 620.0 +/-10.1 ppm, respectively. In contrast, concentrations of carbon monoxide were negligible (1-3 ppm) when the anhydrous new absorbent was exposed to the same anesthetics. CONCLUSIONS: The new material is an effective carbon dioxide absorbent and is chemically unreactive with sevoflurane, enflurane, isoflurane, and desflurane.  (+info)

Formulation of glutaraldehyde disinfectant for alginate impressions. (3/142)

The effect of buffer agents incorporated in glutaraldehyde disinfectants on the surface quality of dental models was examined by the measurement of surface roughness, X-ray diffraction analysis and SEM observation. Seven experimental glutaraldehyde disinfectants were prepared using two buffer agents, potassium acetate alone or potassium acetate and sodium hydrogen carbonate in combination. Four kinds of sulfate--zinc, calcium, potassium and magnesium sulfate--were added to these disinfectants in order to accelerate the hydration of calcium sulfate hemihydrate. The impressions treated with the experimental disinfectants for 1 h produced stone surfaces which had significantly lower surface roughness values than those treated with the commercial disinfectants (p < 0.05). The X-ray diffraction analysis and SEM observation showed that these superior surfaces were produced as a result of significant reductions in the amount of residual calcium sulfate hemihydrate. Replacement of buffer agents in commercial glutaraldehyde disinfectants with chemicals such as those studied in the present study will improve the surface quality of dental stone.  (+info)

Properties of a hybrid plaster-fibreglass cast. (4/142)

OBJECTIVE: To examine the suitability of a plaster-fibreglass hybrid cast for orthopedic applications, comparing them to plaster of Paris (POP) and fibreglass constructs. METHOD: Groups of 10 standardized hybrid, POP and fibreglass casts were studied. An Instron servohydraulic system was used to test the casts in 3-point bending and shear. OUTCOME MEASURES: Strength, stiffness, weight, thickness and cost of the 3 types of cast, and shear strength at the interface between the POP and fibreglass in the hybrid casts. RESULTS: The hybrid casts were twice as strong as the POP constructs, were stiffer and weighed 14% less but were thicker and cost 2.5 times more. They were almost as strong as and less than half the cost of the fibreglass constructs but were thicker, not as stiff, and weighed 42% more. The shear strength of the POP-fibreglass interface in the hybrid casts was higher than the 3-point bending strength of this construct by a factor of 3. CONCLUSIONS: Plaster-fibreglass hybrid casts should be considered for orthopedic use on the basis of their strength, stiffness, weight and cost, combined with their acknowledged advantages of good moulding ability and water resistance.  (+info)

Solar forcing of drought frequency in the Maya lowlands. (5/142)

We analyzed lake-sediment cores from the Yucatan Peninsula, Mexico, to reconstruct the climate history of the region over the past 2600 years. Time series analysis of sediment proxies, which are sensitive to the changing ratio of evaporation to precipitation (oxygen isotopes and gypsum precipitation), reveal a recurrent pattern of drought with a dominant periodicity of 208 years. This cycle is similar to the documented 206-year period in records of cosmogenic nuclide production (carbon-14 and beryllium-10) that is thought to reflect variations in solar activity. We conclude that a significant component of century-scale variability in Yucatan droughts is explained by solar forcing. Furthermore, some of the maxima in the 208-year drought cycle correspond with discontinuities in Maya cultural evolution, suggesting that the Maya were affected by these bicentennial oscillations in precipitation.  (+info)

Elution characteristics of vancomycin, teicoplanin, gentamicin and clindamycin from calcium sulphate beads. (6/142)

The in vitro release of vancomycin, teicoplanin, gentamicin and clindamycin from biodegradable calcium sulphate (CaSO(4)) carrier beads is described. All antibiotics showed prolonged release from the carrier beads, which was elevated during the first 24 h, with peak levels exceeding 2500 microg/bead. Doubling the antibiotic load of the beads revealed a more prolonged elution and a two-fold increase in antibiotic release. Local carrier-associated antibiotic treatment with CaSO(4) beads may prove to be effective in the management of chronic bone infections.  (+info)

Efficacy of calcium sulfate plus decompression bone in lumbar and lumbosacral spinal fusion: preliminary results in 40 patients. (7/142)

OBJECTIVE: To compare the efficacy of calcium sulfate pellets plus bone obtained from decompression with fresh autologous iliac crest bone in lumbar and lumbosacral spinal fusion with decompression. DESIGN: A prospective randomized clinical trial. SETTING: Four tertiary care centres in Halifax, NS. PATIENTS: All were consenting, skeletally mature and suffering from degenerative disc disease or spondylolisthesis. The first 40 patients from a single test centre are reported; 32 of these had completed 1-year follow-up. INTERVENTIONS: Posterolateral lumbar or lumbosacral spinal fusion with spinal canal decompression and randomized placement of test material (decompression bone plus an equal volume of calcium sulfate pellets) on one side and control material (autologous posterior iliac crest bone of equal volume to the test material) on the contralateral side, which allowed subjects to act as their own control. OUTCOME MEASURES: Assessment of bone formation by radiographic evaluation at 6 and 12 months after fusion by an independent musculoskeletal radiologist blinded to the placement of test material. RESULTS: At 6 and 12 months after fusion, 78% and 88% of patients, respectively, showed bone formation at the test site that was 75% to 100% of, equal to or more than that at the control site. Increases in bone formation at 6 and 12 months were almost identical at both sites. Smoking status, patient gender or age, instrumentation used and volume of graft used were not predictive of outcome. CONCLUSIONS: Calcium sulfate pellets plus decompression bone provided bone formation equivalent to autologous iliac crest bone in a majority of patients. Calcium sulfate pellets plus decompression bone may provide a viable alternative to autologous iliac crest as a graft material for spinal fusion.  (+info)

Effect of pH and calcium on short-term NO3- fluxes in roots of barley seedlings. (8/142)

The effect of pH and Ca2+ on net NO3- uptake, influx, and efflux by intact roots of barley (Hordeum vulgare L.) seedlings was studied. Seedlings were induced with NO3- or NO2-. Net NO3- uptake and efflux, respectively, were determined by following its depletion from, and accumulation in, the external solution. Since roots of both uninduced and NO2(-)-induced seedlings contain little internal NO3- initial net uptake rates are equivalent to influx (M. Aslam, R.L. Travis, R.C. Huffaker [1994] Plant Physiol 106: 1293-1301). NO3-, uptake (influx) by these roots was little affected at acidic pH. In contrast, in NO3(-)-induced roots, which accumulate NO3-, net uptake rates decreased in response to acidic pH. Under these conditions, NO3- efflux was stimulated and was a function of root NO3- concentration. Conversely, at basic pH, NO3- uptake by NO3- and NO2(-)-induced and uninduced roots decreased, apparently because of the inhibition of influx. Calcium had little effect on NO3- uptake (influx) by NO2(-)-induced roots at either pH 3 or 6. However, in NO3(-)-induced roots, lack of Ca2+ at pH 3 significantly decreased net NO3- uptake and stimulated efflux. The results indicate that at acidic pH the decrease in net NO3- uptake is due to the stimulation of efflux, whereas at basic pH, it is due to the inhibition of influx.  (+info)

This invention relates to the controlled release of calcium sulfate as well as to the controlled release of an additive to a calcium sulfate matrix such as medicaments or pesticides. The controlled release is achieved by a pellet comprising calcium sulfate. The pellet is prepared by the process comprising mixing powder consisting essentially of alpha-calcium sulfate hemihydrate, a solution comprising water, and, optionally, an additive and a powder consisting essentially of beta-calcium sulfate hemihydrate to form a mixture, and forming said mixture into a pellet, wherein said alpha-calcium sulfate hemihydrate and beta-calcium sulfate hemihydrate powders have specified properties such as BET surface areas, densities, mean particle sizes, and purifies. The dissolution rate of the calcium sulfate pellet is controlled by varying the weight ratio of the beta-calcium sulfate hemihydrate powder to the alpha-calcium sulfate hemihydrate powder from 0 to about 3. The invention also provides a method of
China Construction Application and Powder Shape Calcium Sulphate Dihydrate, Find details about China Calcium Sulphate, Calcium Sulfate from Construction Application and Powder Shape Calcium Sulphate Dihydrate - Zibo Qingxin Chemicals Co., Ltd.
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Anti-static calcium sulphate access floor consists of high-density (1500Kg/m3 ) calcium sulphate core. Galvanized steel sheet is bonded to the bottom of the calcium sulphate core. HPL, PVC or ceramic is sticked to the top of the calcium sulphate...
This research is part of an ongoing project to create gypsum wallboards with enhanced fire resistance. The main goal of this research is to better understand the dehydration properties of calcium sulfate dihydrate, and the hydration of calcium sulfate hemihydrate as well as anhydrous calcium sulfate. The lab-scale kinetics of these processes were studied using thermogravimetric analysis and sorption analysis. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the products from different processes. In addition to the instrumental studies, small batches were handled in ovens and liquid slurries to better mimic the real world processing of these materials. The effects of temperature, time and humidity were investigated to determine their influence on the kinetics of dehydration/hydration of different hydration forms of calcium sulfate.
DOI: 10.11607/prd.00.0485 Prehardened medical-grade calcium sulfate hemihydrate was placed as a grafting material for sinus floor elevation in the left posterior maxilla. After 8 months of healing, three titanium plasma-sprayed screw implants (Biolock) were placed. At the same time, a bone biopsy was harvested for histologic evaluation. The specimen was processed according to standard techniques for hard tissue histology. In both the grafted area and the previously existing area of sinus floor, the histology showed complete calcium sulfate resorption and the bone was primarily of lamellar structure. In the 5-month radiograph, a new trabecular design appeared from the periphery of the grafted area, and on the 8-month radiograph, the graft material was no longer detectable and the augmented area was filled by new tissue showing a trabecular design. This case report documented that medicalgrade calcium sulfate hemihydrate, when used as a grafting material for augmentation of the sinus floor, may ...
The report Global Calcium Sulphate Industry 2016 Market Research Report provides major statistics on the state of the industry and is a valuable source of guidance and direction for companies and individuals interested in the market. It provides a basic overview of the industry including definitions, classifications, applications and industry chain structure. The Calcium Sulphate market analysis is provided for the international market including development history, competitive landscape analysis, and major regions development status.. Then, the report focuses on global major leading industry players with information such as company profiles, product picture and specification, capacity, production, price, cost, revenue and contact information. Upstream raw materials, equipment and downstream consumers analysis is also carried out. Whats more, the Calcium Sulphate industry development trends and marketing channels are analyzed.. Request a Sample copy @ ...
Manufacturer of Calcium Sulphate Anhydrous, Suppliers of Calcium Sulphate Anhydrous, Dealers of Calcium Sulphate Anhydrous in Ethiopia
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phdthesis{f7ddb7f0-7bc5-427f-bc3b-742fdbc376e4, abstract = {Two formulations of biphasic injectable bone substitutes have been developed for the treatment of bone defects and stabilisation of fragility fractures.,br/,,br, ,br/,,br, The first formulation consists of a calcium sulphate matrix with embedded hydroxyapatite (HA) particles to provide osteoconductivity. The mechanical properties of this formulation were investigated by focussing on the factors affecting the compressive strength of the bone substitute. It was found that the relation between liquid and powder in the formulation was the key factor. By adding less liquid the strength increased. However, a lower amount of liquid makes the paste difficult to inject. Other factors that affected the strength were the amount of HA particles, their size and morphology. Increased strength was obtained for a lower content of HA particles with smaller size and smaller specific surface area. It was possible to obtain a strength comparable to ...
Xiangli has researched the calcium sulphate for many years, the loading capacity of this floor from Xiangli is better than any other suppliers, and the purity of calcium sulphate in the panel more than 85% which has reached the International standard.
Chemical Name - Calcium Sulfate Dihydrate. Chemical structure - CaSO4*2H2O. Shipped in a resealable foil bag.. Calcium sulfate dihydrate has a wide variety of uses.. MSDS and Spec Sheets can be found here.. Please follow MSDS handling instructions. ...
The purpose of this study was to determine the natural history of calcium sulfate pellets implanted during acetabular fracture surgery. The study group consisted of patients sustaining an acetabular fracture with intraarticular comminution or marginal impaction or both in whom calcium sulfate pellet
Thousands of our best-selling products always stocked and ready when you need them, so you dont have to wait for the items you use most. Items are shipped within 48 hours of ordering when order is received electronically or by phone prior to 1:00 pm EST. In-stock promise and 48-hour shipping time excludes hazardous chemicals and exceptional order quantities which will be made available at lead time. Availability subject to change in the event of natural disaster or forces of nature affecting sourcing, shipping, transportation, or availability of living material required for producing saleable goods. Wards Science will contact the customer directly to communicate the occurrence of such an event and provide alternate materials when available. Current stock and availability for all products available online on every product page. ...
The report generally describes calcium sulfate, examines its uses, production methods, patents. Calcium sulfate market situation is overviewed; calcium
InterSep Calcium Sulfate is a 100% synthetic calcium sulfate bone void filler engineered to fully resorb and replace bone during the healing process.
There are 80 calories in 1 piece of Tofu (Koyadofu) (with Calcium Sulfate, Dried Frozen). Get full nutrition facts and other common serving sizes of Tofu (Koyadofu) (with Calcium Sulfate, Dried Frozen) including 1 oz and 100 g.
experimental studies have been performed in order to evaluate the behavior of different types of biomaterials involved in the process of tissue and bone regeneration. The guided bone regeneration (GBR) principles are applied in the rebuilding of periodontal tissues, damaged by the periodontal inflammatory process. Since the introduction of GBR biological principles, a wide range of materials have been tested and used as a physical barrier. At present, the autogenous material continues to be considered the best choice when reconstruction of bone defects is intended. Calcium phosphate ceramics have been widely applied as bone substitutes, coatings, cements, drug delivery systems and tissue engineering scaffolds due to their resemblance to the mineral portion of the bone tissue, relative ease in processing and good cell attachment. 40 patients (25 males and 15 females) planned to receive bone regeneration procedure were included in the study. 20 patients were treated for bone regeneration using ...
The disordered-molecular-alloy phase (DMA) of ammonia hydrates [J. S. Loveday and R. J. Nelmes, Phys. Rev. Lett. 83, 4329 (1999)] is unique in that it has substitutional disorder of ammonia and water over the molecular sites of a body centred cubic lattice. Whilst this structure has been observed in ammonia di- and mono-hydrate compositions, it has not been conclusively observed in the ammonia hemihydrate system. This work presents investigations of the structural behaviour of ammonia hemihydrate as a function of P and T. The indications of earlier studies [Ma et al. RSC Adv. 2, 4290 (2012)] that the DMA structure could be produced by compression of ammonia hemihydrate above 20 GPa at ambient temperature are confirmed. In addition, the DMA structure was found to form reversibly both from the melt, and on warming of ammonia hemihydrate phase-II, in the pressure range between 4 and 8 GPa. The route used to make the DMA structure from ammonia mono- and di-hydrates-compression at 170 K to 6 GPa ...
In 2018, Top exporters of Plasters; (consisting of calcined gypsum or calcium sulphate), whether or not coloured, with or without small quantities of accelerators or retarders to Chad were Tunisia ($49.74K , 420,000 Kg), Spain ($1.62K , 2,000 Kg), European Union ($1.61K , 2,000 Kg), Turkey ($0.18K , 3,100 Kg) Tunisia ($49.74K , 420,000 Kg), Spain ($1.62K , 2,000 Kg), European Union ($1.61K , 2,000 Kg), Turkey ($0.18K , 3,100 Kg), China ($0.00K , 40 Kg ...
In 2018, Top exporters of Plasters; (consisting of calcined gypsum or calcium sulphate), whether or not coloured, with or without small quantities of accelerators or retarders to Czech Republic were Germany ($3,230.79K , 24,290,100 Kg), Hungary ($457.05K , 5,427,840 Kg), Austria ($325.22K , 5,406,200 Kg), Poland ($64.13K , 452,157 Kg), France ($60.58K , 312,584 Kg ...
The chemical CaSO4, which occurs naturally as the mineral anhydrite. Gypsum is the dihydrate mineral form, CaSO4·2H2O. Anhydrite and gypsum (commonly called gyp) are found in the subsurface and drilling even small stringers of these minerals can upset a freshwater or seawater mud. Gyp muds, lime muds and oil muds tolerate these salts best. CaSO4 is used as a mud treatment when no pH increase is needed to remove carbonate ion contamination in freshwater and seawater muds. (Lime increases pH when added for this purpose.) Gypsum and lime treatments are often used together to keep pH in the proper range. The test for determining the dissolved and undissolved calcium sulfate in a gyp mud requires two titrations with the strong EDTA reagent and Calver II® indicator when performed to API standards. It also requires a retort analysis for water content in the mud in order to calculate CaSO4 content, lbm/bbl ...
The article contains an error. Calcium sulphate is not used as KH booster as it will not raise carbonate hardness. It will increase GH only. ...
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2015 CSIC. Phsophogypsum is a by-product from the processing phosphate rock. Before the use of it in cement industry such as setting regulator is necessary a study of dehydration reaction of phosphogypsum to avoid the false setting during the milling. The aim is to study the thermal behavior of two different phosphogypsum sources (Spain and Tunisia) under non-isothermal conditions in argon atmosphere by using Thermo-Gravimetriy, Differential Thermal Analysis (TG-DTA) and Differential Scanning Calorimetry (DSC). DSC experiments were carried out at temperatures ranging from ambient to 350 °C at different heating rates. The temperatures of conversion from gypsum to hemihydrate and anhydrite states and heat of dehydration were determined. Various methods were used to analyze the DSC data for reaction kinetics determination. The activation energy and frequency factor were calculated for dehydration of phosphogypsum. Activation energy values of the main dehydration reaction of phosphogypsum were ...
The goal of these studies was to develop and evaluate biocompatible nano scale calcium sulfate (nCS) and propylene glycol alginate (PGA) based composite scaffolds as a third generation biomaterial device to deliver growth factors for bone and periodontal tissue regeneration. De novo nCS or nCS and PGA composite with growth factors may enhance bone and periodontal tissue regeneration within the normal healing period of tissue and prohibit the retardation of regeneration of tissue due to slow degradation of remnants of grafted materials. The cryo-vacuum method was used to process dihydrate CS into dihydrate nCS, which was then subjected to oven drying to produce hemihydrate. Then the nCS was sterilized by glow discharge treatment (GDT) to make it available for use as a sterilized synthetic graft material for the treatment of bone defects or periodontal defects to induce bone and periodontal tissue regeneration. SEM and TEM images of nCS dihydrate powder showed that the powder consisted of ...
1,1,1-Trichloro-2-Methyl-2-Propanol Hemihydrate 6001-64-5 NMR spectrum, 1,1,1-Trichloro-2-Methyl-2-Propanol Hemihydrate H-NMR spectral analysis, 1,1,1-Trichloro-2-Methyl-2-Propanol Hemihydrate C-NMR spectral analysis ect.
Calcium sulfate has the chemical formula CaSO4 and contains one calcium ion bonded to one sulfate ion. The calcium ion has a charge of positive two, while the sulfate ion has a charge of negative...
Calcium Sulfate. Used to add permanent hardness (Calcium ions) to brewing water. 1 gram in 1 gallon changes the salt levels by 61.5 ppm calcium, 147.5 ppm sulfate and adds 153.5 ppm to the hardness. Promash is a useful utility to calculate water salts.
In the clinic, bone defects resulting from infections, trauma, surgical resection and genetic malformations remain a significant challenge. In the field of bone tissue engineering, three-dimensional (3D) scaffolds are promising for the treatment of bone defects. In this study, calcium sulfate hydrate (CSH)/mesoporous bioactive glass (MBG) scaffolds were successfully fabricated using a 3D printing technique, which had a regular and uniform square macroporous structure, high porosity and excellent apatite mineralization ability. Human bone marrow-derived mesenchymal stem cells (hBMSCs) were cultured on scaffolds to evaluate hBMSC attachment, proliferation and osteogenesis-related gene expression. Critical-sized rat calvarial defects were applied to investigate the effect of CSH/MBG scaffolds on bone regeneration in vivo. The in vitro results showed that CSH/MBG scaffolds stimulated the adhesion, proliferation, alkaline phosphatase (ALP) activity and osteogenesis-related gene expression of hBMSCs. ...
In a recent report, Olsen and Watanabe found significant increases in uptake of Fe and Zn in sorghum (Sorghum bicolor L. Moench. var. RS-610) due to calcium sulfate treatments in four of six soils. Our research extended this sulfate × micronutrient interaction study to evaluate the possible ameliorative effect of sulfate on Fe and Zn as influenced by P and CaCO3 levels. A greenhouse factorial experiment was designed using two levels of P, sulfate, and CaCO3 in a Nunn loam soil (fine, montmorillonitic mesic Aridic Argiustoll) with sorghum as the test plant. Plants were grown for 60 days, and then sectioned into top leaves, bottom leaves, and stems. Data collected included dry matter, and P, Fe, and Zn concentrations in the various parts.. Dry matter yields and P concentrations were increased with added P treatments. Phosphorus with added CaCO3 resulted in the lowest Fe and Zn concentrations in the top leaves while P with added sulfate resulted in the highest. These treatment effects were ...
The highest concentration of boron measured on Mars, as of late 2016, is in this mineral vein examined with the ChemCam instrument on NASAs Curiosity rover on Aug, 25, 2016. Orange bars indicate boron content at points in the calcium sulfate vein. The context image is from Curiositys Mastcam.
Detailed nutritional values of Tofu, raw natural, regular, prepared with calcium sulfate. Online analysis information with non-nutrients and nutrients composition facts table for item No. 16427 found in category Legumes and Legume Products. Data contents chart for nutritionists. Food details for TOFU,RAW,REG,PREP W/CA SULFATE in different kinds of quantities, amounts or measurements.
Mealographer has nutrition information for Tofu, raw, firm, prepared with calcium sulfate by serving size. Look in the Nutrition Facts box for fat, protien, calories, calcium and other nutrients.
Calcium sulfate dihydrate | CaH4O6S | CID 24928 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Calcium sulfate dihydrate | CaH4O6S | CID 24928 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Level of Detail (LOD) and Level of Information (LOI) for Ready-mixed self-smoothing calcium sulfate screeds, BIM object definition includes requirements and purpose at each level
ltrc project capsule_13_2gt implementation of slag stabilized blended calcium sulfate (bsc) in a pavement structure - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
This research report analyzes the Global Calcium Sulfate Market, outlining current industry trends as well as a forecast from 2018 to 2023.
All over the world, people are running into the problem of what to do with useless phosphogypsum stacks piling up, and the world could benefit from the use of the substance on outdoor lawns. For years, people across the globe have tried to find a use for this growing problem. I thought the answer might be using phosphogypsum on grass to help it retain water.
99% high quality Adenine hydrochloride hemihydrate,CAS:6055-72-7 Product name:Adenine hydrochloride hemihydrate CAS No.:6055-72-7 Molecular formula:C5H8ClN5O Molecular weight:189.6 Product Specifications:Pharmacopoeial grade Purity:99%+ Brand:Hotai...
Deinking by-product from wastepaper recycling operations and pulp mill clarifier sludge are incorporated into drywall or other gypsum-based building products, such as building blocks. The deinking by-product or pulp mill clarifier sludge is diluted and mixed with stucco (calcium sulfate hemihydrate). The resulting slurry preferably is subjected to an initial dewatering, following the on-set of hardening of the gypsum, and drywall or other building product is formed from the dewatered material. A significant loading of fibrous material in the drywall sheet or other gypsum product is achieved using the procedure, imparting improved flexural strength to the product. The preferred procedure also may be used to incorporate virgin or recycled wood pulp into the building product.
DentoGen is an FDA-approved medical-grade calcium sulfate hemihydrate for bone regeneration in dental applications, including dental implants.
Orthopedic implants often loosen due to the invasion of fibrous tissue. The aim of this study was to devise a novel implant surface that would speed healing adjacent to the surface, and create a stable interface for bone integration, by using a chemoattractant for bone precursor cells, and by controlling tissue migration at implant surfaces via specific surface microgeometry design. Experimental surfaces were tested in a canine implantable chamber that simulates the intramedullary bone response around total joint implants. Titanium and alloy surfaces were prepared with specific microgeometries, designed to optimize tissue attachment and control fibrous encapsulation. TGFß, a mitogen and chemoattractant (Hunziker EB, Rosenberg LC. J Bone Joint Surg Am 1996;78:721-733) for osteoprogenitor cells, was used to recruit progenitor cells to the implant surface and to enhance their proliferation. Calcium sulfate hemihydrate (CS) was the delivery vehicle for TGFß; CS resorbs rapidly and appears to be ...
More than a decade has passed since the first injectable bone substitutes were introduced for use in orthopaedic trauma, and over recent years the number of commercial products has increased dramatically. Despite the fact that these bone substitutes have been on the market for many years, knowledge amongst potential users on how and when they might be useful is still fairly limited. Most injectable bone substitutes belong to one of two major groups: by far the largest group contains products based on various calcium phosphate (CP) mixtures, whilst the smaller group consists of calcium sulphate (CS) compounds. Following mixing, the CP or CS paste can be injected into - for instance - a fracture space for augmentation as an alternative to bone graft, or around a screw for augmentation if the bone is weak. Within minutes an in situ process makes the substitute hard; the mechanical strength in compression resembles that of cancellous bone, whereas the strength in bending and shear is lower. Over ...
Gypsum is a soil conditioner - it improves soil quality, drainage, aeration and particle size - which basically makes the soil more like topsoil. This is essential for soil health and therefore for plant health.
China Gypsum Board Production Equipment manufacturers - Select 2018 high quality Gypsum Board Production Equipment products in best price from certified Chinese Production Equipment Cooling manufacturers, Gypsum Board Machine suppliers, wholesalers and factory on Made-in-China.com
A bone graft substitute composition can include essentially of calcium sulfate, a mixing solution, and a plasticizing substance. A bone graft substitute composition can include calcium sulfate, demineralized bone matrix, cancellous bone, a plasticizing substance, and a mixing solution.
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Clean the cement screed and bind any residual dust by priming the substrate with R 777 Dispersion Primer. Instead, it is also possible to use R 766 Multi-Purpose Primer which can be applied on nearly every absorbent and nonabsorbent substrate. Thanks to its high concentration, it can be diluted up to a ratio of 1:4 and thus ensures a high yield. Another benefit: R 766 dries really fast (0-30 minutes).. ...
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Open Food Facts is made by a non-profit association, independent from the industry. It is made for all, by all, and it is funded by all. You can support our work by donating to Open Food Facts and also by using the Lilo search engine ...
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A superior quality supplement from Hylands for curing cold, flu, cough and allergy instantly. Available online at best prices, only at sanasana.com.
Open Food Facts is made by a non-profit association, independent from the industry. It is made for all, by all, and it is funded by all. You can support our work by donating to Open Food Facts and also by using the Lilo search engine ...
Homeopathic Tissue Remedy For the temporary relief of the symptoms of Coughs, Skin Ailments, Sore Throat, Colds, Toothache Calc Sulph has a cleansing and purifying influence throughout the system. Minor skin Ailments, acne, and pimples during
y 1974 w. A. KINKADE ET AL 3,813,312 moor-ass FOR MAKING GYPSUM BOARD iginal Filed Oct. 5. 1970 FIG FIG FIG. 4 FIG. 3 United States Patent Oflice U.S. Cl. 156-39 20 Claims ABSTRACT OF THE DISCLOSURE A process of producing gypsum board of enhanced strength and resistance to humidified bond failure at any particular density through the use of a delayed action accelerator. The accelerator is preferably formed by grinding landplaster and a sugar. The present invention relates to gypsum board, sometimes called plaster board, which consists of a gypsum core encased in paper cover sheets. The invention is particular directed to the production of such board of reduced weight or density without sacrifice in strength and also to the production of such board without loss of bond between the paper cover sheets and the core on exposure to high humidities, particularly for short periods of time. In general, the invention is an improvement over the post acceleration disclosed in Lane et al. US. Pat. 3,359,146, ...
Gypsum vs Lime. Gypsum is a mineral that is composed of calcium sulphate. It occurs in nature as flattened and often its crystals will be twinned with transparent cleavable masses known as selenite. At times it may occur as a silky, fibrous form known as spar or other times it may be granular. The occurrence of gypsum called alabaster is a very fine grained variety that is used in all sorts of ornamental work. Gypsum can also occur in an opaque, flower-like form containing some sand grains embedded within. The natural crystals of gypsum in the selenite form are some of the largest known in nature.. The term Lime is a general term for calcium containing inorganic materials predominantly containing carbonates, oxides and hydroxides. However, in strict terms, Lime is calcium oxide or calcium hydroxide. Lime was originally used as building mortar and has ability to adhere to surfaces. Many lime products are widely used for building purposes and in agriculture as chemical feedstock. Calcium carbonate ...
Calcium sulfite, or calcium sulphite, is a chemical compound, the calcium salt of sulfite with the formula CaSO3.x(H2O). Two crystalline forms are known, the hemihydrate and the tetrahydrate, respectively CaSO 3 ⋅ 1 2 H 2 O {\displaystyle {{\ce {CaSO3.1/2H2O}}}} and CaSO 3 ⋅ 4 H 2 O {\displaystyle {{\ce {CaSO3.4H2O}}}} . All forms are white solids. It is most notable as the product of flue-gas desulfurization. Calcium sulfite is generated as the intermediate in the production of gypsum, which is the main component of drywall. A typical US home contains 7 metric tons of such drywall gypsum board. As a food additive it is used as a preservative under the E number E226. Along with other antioxidant sulfites, it is commonly used in preserving wine, cider, fruit juice, canned fruit and vegetables. Sulfites are strong reducers in solution, they act as oxygen scavenger antioxidants to preserve food, but labeling is required as some individuals might be hypersensitive. Chemical wood pulping is the ...
Buy Drywall Metal Stud And Track/Gypsum Board Wall Partition, Find Details include Size,Weight,Model and Width about Drywall Metal Stud And Track/Gypsum Board Wall Partition. Make an Inquiry for Drywall Metal Stud And Track/Gypsum Board Wall Partition at OKorder.com.
Gypsum powder-based fertilizer effectively loosens hard subsoil or layers of clay in the garden. It penetrates the clay matrix and loosens its structure. It improves the composition of soil, prevents water runoff and soil erosion, facilitates water and air movement and root growth, converts salty soil into neutral soil, reduces the bulk compactness of tough soil, controls dust erosion, prevents water logging by improving the drainage capability of soil and renders magnesium harmless.. The calcium content of gypsum balances excess micro-nutrients in soil, such as copper, manganese, zinc and iron. It supplies sulfur, improves the grade of produced fruit and prevents diseases. Otherwise, the chemical is neutral and will not change the pH of the soil.. Used In ...
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A short and easy walk upstream along the east-west oriented section of Arroyo de las Cañas will bring you to superb exposures of the Cañas Gypsum Member of the Yeso Formation. After crossing a yellow sandstone bed that marks the top of the Torres, the next several hundred yards of exposure on the south side of the valley consist of massive gypsum (the hydrated form of calcium sulfate, CaSO4 · 6H2O). In most climates, gypsum is removed through dissolution by near-surface ground water. In the warm, dry climate of New Mexico, however, gypsum can reach the surface and survive there for some time. This is an exceptional outcrop, and it is one of only a handful of places in the U.S. that such fresh gypsum outcrops can be seen.. The Cañas Gypsum Member in this area can be as much as 190 feet thick, although at this site only 30-40 feet of gypsum is exposed. The gypsum displays a number of distinctive fabrics, especially laminations of alternating dark and light layers, an eighth to a quarter of an ...
Answers to questions about Mosaic in Florida, including phosphate mining, land reclamation, public health risk, water use and quality, water consumption, radiation risk, radon gas, gypstack, gypsum stack, phosphogypsum, gyp stacks.
After local anesthesia a full-thickness flap is made in the implantation site, the best place of the implant in point and axes is determined, a very thin layer of bone is left buccally after socket preparation then the implant is inserted then the graft (CS) is mixed and the buccal bone layer dried by Gauze, after that apply the material on the buccal side by layers and making pressure on it by Gauze moisturizer with the combined solution waiting 2 - 4 minutes until the graft is solid then make sure that the flap can be sutured free of tension to make a firm closure using 4-0 nylon sutures ...
Calcium is essential for plant health. Symptoms of a calcium deficiency are as follows. Dead/brown spots on the fast growing stems of young parts of the plant on on the new growth leaves. Abnormally green foliage. Premature shedding of blossoms/buds. Weekend Stems. Blossom End Rot (BER), grey/brown spots on the blossom
TenCate Geosynthetics Asia has secured an order at Huntsman Tioxide in Teluk Kalong (Malaysia) for the supply of 105 TenCate Geotube® systems. These systems will be used in Malaysia as an environmentally-friendly solution for the dewatering and storage of calcium sulfate. The TenCate Geotube® containers will be produced by Ten Cate Industrial Zhuhai (China) and supplied through Ashland, a company that is involved in among other things the field of waste water treatment. Deliveries started in October and will continue for nine months. The production of titanium dioxide generates large quantities of calcium sulfate, which must be processed and stored in an environmentally-friendly manner. Before this waste product can be stored, it first has to be dewatered. Polymers are added to aid in the dewatering process and these are supplied by Ashland. The polymers accelerate the process of dewatering by bonding the solid matter. The TenCate Geotube® acts as a filtration and storage system ...
Case Reports in Dentistry is a peer-reviewed, Open Access journal that publishes case reports in all areas of dentistry, including periodontal diseases, dental implants, oral pathology, as well as oral and maxillofacial surgery.
For adsorption isotherm, about 50 gram sample of corn will be initially placed in a small dish. The dish will be located on a platform inside a glass jar. Calcium sulfate will be placed at the bottom of the jar. The corn sample will be kept in this jar until there is no change in its weight. Then calcium sulfate will be replaced with a saturated salt solution to obtain desired equilibrium relative humidity in the jar. The jar will be placed inside a controlled temperature incubator. The sample will be kept in the jar until there is no change in its weight indicating equilibration with the surrounding atmosphere. The final weight of the sample will be recorded ...
Allow the soybeans to soak overnight.. - Grind them and add 20 liters of water, forming a liquid mixture. - Boil for 30 minutes in a tightly covered pot.. - Allow to cool until the temperature reaches 60 º C.. - Melt 50 grams of calcium sulfate in a tablespoon of water.. - Stir well the soybean paste shaking the pot by the handles.. - Add 50 g of calcium sulfate to coagulate soy milk.. - Filter cheese on top of a cloth to remove the serum.. - Place a wooden plate on the cheese and put a weight on top of it to completely remove the excess of liquid.. - Leave the cheese in a bowl of clear water for 30 minutes to clean thoroughly.. - Remove from water and place it into a serving dish.. ...
Each 7th Edition Documentation summarizes and evaluates the scientific data from which its TLV® or BEI® is derived. Knowing the basis of each TLV® and BEI®, as described in its Documentation, is essential to the application of that TLV® or BEI®. This Documentation is available for download in PDF format. Before downloading, ACGIH® requires that you read the Policy Statement on the Uses of TLVs® and BEIs®, Special Note to User, and the Introduction to the Chemical Substances TLVs®, available at https://www.acgih.org/Products/tlvintro.htm. This document is fully protected by copyright and no part of it may be reproduced in any form or by any means - graphic, electronic, or mechanical including photocopying, recording, taping, or information storage and retrieval systems - without written permission from ACGIH®, 1330 Kemper Meadow Drive, Cincinnati, OH 45240-1634.. ...
Calc Sulph Schuessler Cell Salt Homaccord information about active ingredients, pharmaceutical forms and doses by Naturpharm, Calc Sulph Schuessler Cell Salt Homaccord indications, usages and related health products lists
Research in Medicine, پژوهش در پزشکی The Quarterly journal of School of Medicine, Shahid Beheshti University of Medical Sciences فصلنامه علمی پژوهشی دانشکده پزشکي دانشگاه علوم پزشکي و خدمات بهداشتي درماني شهيد بهشتي
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 ...
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 ...
Care for the environment and welfare of the people is always at the top of our priority list. Concern for nature has always functioned hand in hand with all our other activities. We strongly believe that a green earth is a grand earth.. ...
Note: Descriptive terms (soft, firm, extra firm) vary in usage between manufacturers as there are no standards for the various types of tofu. ...
Open Food Facts is made by a non-profit association, independent from the industry. It is made for all, by all, and it is funded by all. You can support our work by donating to Open Food Facts and also by using the Lilo search engine ...
Why do people do this? Somebody broke down and analyzed all of the ingredients in a Hostess Twinkie and wrote Twinkie, Deconstructed. He must not have hear
Gypsum is a powdered soil amendment that landscaping experts frequently recommend for loosening hardpan clay soils. Gypsum is a form of hydrated calcium sulfate. In clay soil, gypsum helps to hold clay particles together in clumps, which improves soil structure. Compared to soil conditioners such as limestone, gypsum ...
Often I am asked about our source of gypsum and what makes it so special. I thought I would take this opportunity to share a piece of history with you. SuperCal SO4 is derived from calcium sulfate dihydrate or, for you chemistry fans, CaSO4*2H20. One of the purest gypsum deposits in the world, happens to be found in a very small region of Webster County, IA, near Fort Dodge. According to Raymond Anderson in his piece, Fort Dodge Gypsum: A Salt from Iowas Jurassic Sea, "this deposit, part of the Jurassic-age Fort Dodge Formation (about 145 million years old), comprises one of the most pure gypsum deposits known on Earth." Anderson went on to explain, "The gypsum at Fort Dodge, like most commercial-scale deposits, had its origins in the evaporation of seawater from a restricted shallow basin. Water from the Jurassic-age Sundance Sea passed over a low-lying barrier into the basin ...
The effect of zinc on the biotransformation of phosphogypsum, COD reduction and growth rate (µ max day -1 ) of an SRB community and Desulfotomaculum ruminis in media with sodium lactate or ethanol was examined. Depending on the form of zinc (Zn 3 (PO 4 ) 2 x 4H 2 O, ZnSO 4 x7H 2 O, ZnCl 2 ,...
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Synchrotron-based small- and wide-angle X-ray scattering (SAXS/WAXS) was used to examine in situ the precipitation of gypsum (CaSO4·2H2O) from solution. We determined the role of (I) supersaturation, (II) temperature and (III) additives (Mg2+ and citric acid) on the precipitation mechanism and rate of gypsum. Detailed analysis of the SAXS data showed that for all tested supersaturations and temperatures the same nucleation pathway was maintained, i.e., formation of primary particles that aggregate and transform/re-organize into gypsum. In the presence of Mg2+ more primary particle are formed compared to the pure experiment, but the onset of their transformation/reorganization was slowed down. Citrate reduces the formation of primary particles resulting in a longer induction time of gypsum formation. Based on the WAXS data we determined that the precipitation rate of gypsum increased 5-fold from 4 to 40 °C, which results in an effective activation energy of ~30 kJ·mol−1. Mg2+ reduces the
The development of biomaterials with high osteogenic ability for fast osteointegration with a host bone is of great interest. In this study, pearl/CaSO4 composite scaffolds were fabricated using three-dimensional (3D) printing, followed by a hydration process. The pearl/CaSO4 scaffolds showed uniform interconnected macropores (∼400 μm), high porosity (∼60%), and enhanced compressive strength. With CaSO4 scaffolds as a control, the biological properties of the pearl/CaSO4 scaffolds were evaluated in vitro and in vivo. The results showed that the pearl/CaSO4 scaffolds possessed a good apatite-forming ability and stimulated the proliferation and differentiation of rat bone mesenchymal stem cells (rBMSCs), as well as…. ...
... _machine used to mill gypsum - Grinding machine used to mill gypsum Gypsum mills are used in gypsum powder production line Machine used for Gypsum mineral chinagrindingmill machine used to m
... _Thailand gypsum mining: Vanich Gypsum Co., LtdThailand gypsum mining: Vanich Gypsum is one of a very few pioneers in gypsum mining Three are in About Us | American GypsumAbout Us. Long recogn
The SP20 THF is a worm pump for liquid floor screed application. To guarantee continuous flow rate, even with metallic or synthetic fibres in the liquid screed, a new corner grid has been designed and a discontinuous vibrator is equipped as standard. The design has been optimized for maintenance with simple and fast access to all components. It is ideal for calcium sulphate self-levelling floor screed (anhydrite) as well as cement self-levelling floor screed. ...
Used as a seal for cement bound floor and walls surfaces, magnesite screeds, calcium sulphate screeds and well compacted sanded poured asphalt (AbIC 15 class ...
Enriched Wheat Flour (Flour, Niacin, Reduced Iron, Thiamine Mononitrate, Riboflavin, Folic Acid), Sugar, Vegetable Oil (Canola, Soybean, Palm and Palm Kernel, Sunflower), Spices, Glucose-Fructose, Salt, Sodium Bicarbonate, Ammonium Bicarbonate, Sodium Acid Pyrophosphate, Corn Starch, Monocalcium Phosphate, Calcium Sulphate), Eggs, Artificial Colors (FD&C Red 3, FD&C Red 40, FD&C Yellow 5), Wheat Starch.. ...
1, raw material calcium sulfate content high, the albedo high, small degree good, less impurity, 2, processing technology science, working stability, the product quality is stable, 3, cements low and high strength, 4 and initial setting time is...
You can select one or more of the child elements referenced above.. For C++ development, the registration information of a task is specified using the Settings property of ITaskDefinition.. For scripting development, the registration information of a task is specified using the TaskDefinition.Settings property.. ...
In February, around one hundred farmers living in the municipalities of Lieto and Paimio in Southwest Finland were informed for the first time about a large-scale pilot of gypsum application. During the spring they were contacted via letter and phone and also a farmer event was organized in March. Discussions with the farmers revealed that they consider gypsum application as an interesting method. As a result, 60 % of the farmers were willing to participate in the experiment.. The phone interviews were followed by negotiations at farms resulting in 55 agreements comprising 1550 hectares of agricultural land for gypsum application. The gypsum will be transported from Yaras Siilinjärvi factory directly to the farms during autumn. Farmers will spread the gypsum themselves or use contractors. All costs for the farmers will be covered.. ...
Department of Chemistry, UBC Faculty of Science. Vancouver Campus. 2036 Main Mall. Vancouver, BC Canada V6T 1Z1. Tel: 604.822.3266. Fax: 604.822.2847. ...
Department of Chemistry, UBC Faculty of Science. Vancouver Campus. 2036 Main Mall. Vancouver, BC Canada V6T 1Z1. Tel: 604.822.3266. Fax: 604.822.2847. ...
Product Description Lorcaserin Hydrochloride (Belviq) is an FDA-approved prescription weight-loss medication that, when used with diet and exercise, can help some overweight† adults with a weight-related medical problem, or obese adults, lose weight and keep it off. It is not known if BELVIQ when taken with other prescription, over-the-counter, or herbal weight-loss products is safe…
Calcium sulfate (gypsum): The traditional and most widely used coagulant to produce Chinese-style tofu. It produces a tofu that is tender but slightly brittle in texture. The coagulant itself has no perceivable taste. Use of this coagulant also makes a tofu that is rich in calcium. As such, many tofu manufacturers choose to use this coagulant to be able to market their tofu as a good source of dietary ...
In New Zealand, mushroom compost is usually made from a mixture of wet straw, animal manure and gypsum (calcium sulfate). At Meadow Mushrooms in Christchurch, large piles of compost are mechanically turned regularly, to aerate the compost and maintain its temperature at 65-80°C.. ...
calcium. sulfate. +. HF. +. 3. H. 3. PO. 4. {\displaystyle {\ce {{\overset {fluorapatite}{Ca5F(PO4)3}}+{5H2SO4}+10H2O-,{\ ... copper(II) sulfate hydrate. →. H. 2. SO. 4. CuSO. 4. (white powder). ⏞. Anhydrous copper(II) sulfate. +. 5. H. 2. O. {\ ... overset {calcium~sulfate}{5CaSO4.2H2O}}+{HF}+3H3PO4}}}. Ammonium sulfate, an important nitrogen fertilizer, is most commonly ... This is treated with 93% sulfuric acid to produce calcium sulfate, hydrogen fluoride (HF) and phosphoric acid. The HF is ...
Gypsum - a mineral; calcium sulfate. CaSO4 Horn Silver/Argentum Cornu - a weathered form of chlorargyrite, an ore of silver ... SbO4 Glauber's Salt - sodium sulfate. Na2SO4 Green Vitriol - a mineral; iron(II) sulfate heptahydrate. (or ferrous sulfate) ... Lime/Quicklime (Burnt Lime)/Calx Viva/Unslaked Lime - calcium oxide, formed by calcining limestone. Slaked Lime - calcium ... Dutch White - a pigment, formed from one part of white lead to three of barium sulfate. BaSO4 Flowers of antimony - antimony ...
Alternatively, gypsum (calcium sulfate, CaSO4. 2H2O) can also be applied as a source of Ca++ ions to replace the sodium at the ... Hence, the calcium ions Ca++ are immobilized. The presence of abundant Na+ ions in the soil solution and the precipitation of ... Calcium Chloride is also used to reclaim alkali soils. CaCl2 converts Na2CO3 into NaCl precipitating CaCO3. NaCl is drained off ... The partial pressure of dissolved CO2 at the plants root zone also decides the Calcium present in dissolved form in the field ...
... framework for predicting inorganic fouling in membrane distillation and experimental validation with calcium sulfate". Journal ... Calcium and carbonate ions react to form calcium carbonate, which precipitates, leaving fresh water. The theoretical energy ... Inhibitors for fouling are biocides (as oxidants against bacteria and viruses), like chlorine, ozone, sodium or calcium ... Various factors interfere with efficiency: ionic contamination (calcium, magnesium etc.); DOC; bacteria; viruses; colloids & ...
Containing sodium chloride, sulfate, calcium carbonate. They are very good for the cure of chronic articular rheumatism. The ...
... was originally reported by Zeise in 1834.[6] Zeise treated calcium ethyl sulfate with a suspension of barium ...
The orbital observations are consistent with iron sulfate or a mixture of calcium and magnesium sulfate. So magnesium sulfate ... Sulfates (for instance of sodium, magnesium and calcium) are also common in other continental evaporates (such as the salars of ... Curiosity has detected calcium sulfates on Mars. (Curiosity is currently exploring ancient deposits at the base of Mount Sharp ... "Calcium sulfate veins characterized by ChemCam/Curiosity at Gale crater, Mars" (PDF). Journal of Geophysical Research: Planets ...
... is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely ... "Calcium sulphate for the baking industry" (pdf). United States Gypsum Company. Retrieved 1 March 2013. "Tech sheet for yeast ... When gypsum is heated in air it loses water and converts first to calcium sulfate hemihydrate, (bassanite, often simply called ... ISBN 0-8130-2986-4. Bock, E. (1961). "On the solubility of anhydrous calcium sulphate and of gypsum in concentrated solutions ...
... is a sulfate of antimony and calcium. The mineral, Ca(SbO)4(SO4)2(OH)2 (2(H2O)), was named Peretaite for its locality ... Most of this mineral is made up of an Antimony oxide, Calcium, and a sulfur oxide. Some of the qualitative analyses of ... Therefore a wet chemical analysis was performed for the sulfur content, calcium was determined by atomic absorption, and ... which is the source of the calcium in peretaite. The mineral peretaite has transparent crystals that are colorless. It has a ...
From an aqueous solution calcium sulfate is deposited as crystals of gypsum, but when the solution contains an excess of sodium ... Anhydrite is a mineral-anhydrous calcium sulfate, CaSO4. It is in the orthorhombic crystal system, with three directions of ... This transformation is reversible, with gypsum or calcium sulfate hemihydrate forming anhydrite by heating to around 200 °C ( ... It is not isomorphous with the orthorhombic barium (baryte) and strontium (celestine) sulfates, as might be expected from the ...
A cool cabinet with a desiccant, such as calcium sulfate, can also serve as a good storage area. Not only do cooler ... The protein precipitate formed in saliva is normally rich in calcium and low in solubility. Also, alpha-amylase contains a ...
They include: calcium hypochlorite, copper sulphate, cupricide, and simazine. The calcium hypochlorite amount needed varies ... Copper sulfate is also used commonly, but no longer recommended by the Australian Department of Agriculture, as it kills ... The oncoids often form around a central nucleus, such as a shell fragment, and a calcium carbonate structure is deposited by ... Culpricide is a chelated copper product that eliminates blooms with lower toxicity risks than copper sulfate. Dosage ...
Gypsum materials consist of calcium sulfate dihydrate (CaSO4·2H2O). Sulfate-reducing bacteria convert sulfates to toxic ...
The team found evidence of boron in a total of 43 calcium sulfate veins in Gale Crater. The veins were found in Yellowknife Bay ... 4) The groundwater deposited the salts with the calcium sulfate that makes up the bulk of these veins. A paper described the ... 4) Then, the boron and calcium sulfate was deposited. In hypothesis B: (1) Boron stayed in solution. (2) But when the lake ... This mineral-rich solution moved through the fractures, and produced veins made up of borates and sulfates as veins. ...
The chalk used on blackboards today is usually made of gypsum or calcium sulphate, a powder pressed into sticks. ... It is similar to chalk, made of calcium carbonate with calcium hydroxide. It was made of dried lime which was made into a ... Chalk is a kind of limestone, made of the mineral calcite, or calcium carbonate. It was originally deposited under the sea as ... Tropical white sand beaches may also have a high quantity of white calcium carbonate from tiny bits of seashells ground to fine ...
... most importantly sulfates and the ions of magnesium and calcium. The removal of these is beneficial, as it reduces the level of ... calcium carbonate 6-10% and carbon 7-10%. It is primarily used for filtration and decolorization. Bone char is primarily made ...
"Domeboro - aluminum sulfate tetradecahydrate, calcium acetate monohydrate powder, for solution". DailyMed. U.S. National ... Topical astringent powder Domeboro contains aluminium sulfate tetradecahydrate, [Al(H 2O) 6] 2(SO 4) 3•2H 2O, and calcium ... A related structure with calcium ions was reported in 1994, and in it the alizarins chelate to the calcium ions to form AzCaAz ... "Metal Complexes of Alizarin I-The Structure of the Calcium-Aluminium Lake of Alizarin". Coloration Technology. doi:10.1111/j. ...
Gypsum is a soft mineral composed of calcium sulfate dihydrate. Gypsum may also refer to: Gypsum, Bhutan Gypsum, Colorado, U.S ...
Springs of radioactive isothermal sodium-calcium-chloride-sulphate mineral water; deposits of mineral mud. Istarske Toplice ...
... calcium sulfate, lithium borate, calcium borate, potassium bromide and feldspar. It was invented in 1954 by Professor ... "Calcium sulfate activated by thulium or dysprosium for thermoluminescence dosimetry." Health physics 21.2 (1971): 295-300. Faiz ... calcium sulfate doped with Tm. As the radiation interacts with the crystal it causes electrons in the crystal's atoms to jump ... The two most common types of TLDs are calcium fluoride and lithium fluoride, with one or more impurities to produce trap states ...
... sulfate, calcium, potassium, etc. In addition, sea spray aerosols may contain organic compounds, which influence their ... Secondary sulfate and nitrate aerosols are strong light-scatterers. This is mainly because the presence of sulfate and nitrate ... Sulfate aerosol has two main effects, direct and indirect. The direct effect, via albedo, is a cooling effect that slows the ... "6.7.2 Sulphate Aerosol". IPCC Third Assessment Report, Working Group I: The Scientific Basis. IPPCC. 2001. Retrieved 10 August ...
It contains dense deposits of magnesium sulfate, calcium and sodium sulphates. It also contains high concentrations of eight ... Magnesium sulfate, which crystallizes in the summer, is a major contributor to spot color. In the summer, remaining minerals in ...
... by which sodium sulfate and hydrochloric acid are produced. The sodium sulfate is afterwards fired with calcium carbonate and ... all the chlorine of the sodium chloride being ultimately lost in the shape of worthless calcium chloride. The Leblanc process ...
The water contains calcium, magnesium, hydrocarbonate, alkalis, chloride, sulfate and fluoride. Medical indications of the ...
A greater problem for scaling is the deposition of calcium sulphate. The saturation point for this compound decreases with ...
... is typically used to treat hypothyroidism,[9] and is the treatment of choice for people with hypothyroidism,[10] who often require lifelong thyroid hormone therapy.[11] It may also be used to treat goiter via its ability to lower thyroid-stimulating hormone (TSH), a hormone that is considered goiter-inducing.[12][13] Levothyroxine is also used as interventional therapy in people with nodular thyroid disease or thyroid cancer to suppress thyroid-stimulating hormone (TSH) secretion.[14] A subset of people with hypothyroidism treated with an appropriate dose of levothyroxine will describe continuing symptoms despite TSH levels in the normal range.[11] In these people, further laboratory and clinical evaluation is warranted as they may have another cause for their symptoms.[11] Furthermore, it is important to review their medications and possible dietary supplements as several medications can affect thyroid hormone levels.[11] Levothyroxine is also used to treat subclinical ...
The dissolution rate of the calcium sulfate pellet is controlled by varying the weight ratio of the beta-calcium sulfate ... wherein said alpha-calcium sulfate hemihydrate and beta-calcium sulfate hemihydrate powders have specified properties such as ... The controlled release is achieved by a pellet comprising calcium sulfate. The pellet is prepared by the process comprising ... an additive and a powder consisting essentially of beta-calcium sulfate hemihydrate to form a mixture, and forming said mixture ...
Find details about China Calcium Sulphate, Calcium Sulfate from Construction Application and Powder Shape Calcium Sulphate ... China Construction Application and Powder Shape Calcium Sulphate Dihydrate, ... Calcium Sulphate, Calcium Sulfate, Aluminium Sulphate manufacturer / supplier in China, offering Construction Application and ... Construction Application and Powder Shape Calcium Sulphate Dihydrate Construction Application and Powder Shape Calcium Sulphate ...
Find details about China Food Grade Calcium Sulfate Dihydrate, Calcium Sulfate Dihydrate from Food Grade Calcium Sulfate ... Food Grade Calcium Sulfate Dihydrate, Calcium Sulfate Dihydrate, Dicalcium Phosphate Dihydrate Toothpaste Grade manufacturer / ... Calcium Sulphate Brief Description. Appearance:white powder. Purity :98%min. Packing: 25kg/bag Prompt Delivery. Shelf life: 2 ... Food Grade Calcium Sulfate Dihydrate. Product Description. Colorless columnar crystal or white crystalloid powder. 128 °C lose ...
Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO4 and related hydrates. In the form of γ- ... The main use of calcium sulfate is to produce plaster of Paris and stucco. These applications exploit the fact that calcium ... In the production of phosphoric acid from phosphate rock, calcium phosphate is treated with sulfuric acid and calcium sulfate ... So, to dissolve higher amounts of calcium sulfate or calcium hydroxide in water, it is necessary to cool down the solution ...
Anhydrous calcium sulfate, Anhydrous gypsum, Anhydrous sulfate of lime, Calcium salt of sulfuric acid [Note: Gypsum is the ...
Calcium sulfate, also known as gypsum, is an unusually soft mineral that occurs in nature. Gypsum is number 2 on the Mohs ... Retrieved from "https://www.conservapedia.com/index.php?title=Calcium_Sulfate&oldid=1254117" ...
Solvay is an advanced materials and specialty chemicals company offering a portfolio of more than 2000 products across various key markets worldwide. ...
Gypsum, calcium sulfate, will help. Sodium sulfate will certainly not. [Editors note: Thank you. The reference to gypsum as ... gypsum is explained as sodium sulfate. This is wrong. Gypsum is calcium sulfate. ... sodium sulfate was an error on my part and should have read calcium sulfate.] ...
Tag: calcium sulfate mineral veins. Posted on January 31, 2014. December 23, 2015. ... Another major discovery by Opportunity was the finding of hydrated mineral veins of calcium sulfate in the bench surrounding ... 7. Spirit: Ferric sulfates moved by modern water. Ferric sulfates moved down the soil column by modern waters at Troy and ... Opportunity determined that the Homestake mineral vein was composed of calcium sulfate,or gypsum, while exploring around the ...
... prepared with calcium sulfate Nutrition - BellaOnline Nutrition Database - BellaOnline is committed to helping our visitors ... prepared with calcium sulfate. Short Description: TOFU,DRIED-FROZEN (KOYADOFU),PREP W/CA SULFATE. Common Name: Manufacturer ... Tofu, dried-frozen (koyadofu), prepared with calcium sulfate. Food Group: Legumes and Legume Products. Long Description: Tofu, ... Tofu, dried-frozen (koyadofu), prepared with calcium sulfate Nutrition Information - Full Details. All values shown in the ...
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.. ...
Calcium sulfate dissociates into the calcium Ca2+ and sulfate SO42- ions at environmental pH. These are essential to all living ...
Calcium Sulfate - CaSO4 - Lilit Zadoyan by Lilit Zadoyan , This newsletter was created with Smore, an online tool for creating ... Uses For Calcium Sulfate Calcium Sulfate, also known as Plaster of Paris or gypsum, is most commonly used as a food additive or ... The elements of Calcium Sulfate are calcium, sulfur, and oxygen and its compound type is inorganic salt. This chemical falls ... Calcium Sulfate can be used to make casts because of its quick setting and its only slightly soluble to water. ...
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 ...
unnamed calcium hydroxide mineral Molecular and structural information. Molecular formula:. Ca8(S3-2,S4-2, H2S, H2O)(OH)12.20 ...
Magnesium and calcium in drinking water and death from acute myocardial infarction in women.. Author:. Rubenowitz, Axelsson G ...
Calcium Sulfate Hemihydrate CaSO4 • 0.5H2O / (CaSO4)2• H2O bulk & research qty manufacturer. Properties, SDS, Applications, ... Calcium Sulfate Hemihydrate Synonyms. Calcium sulphate hemihydrate, α (alpha) calcium sulfate hemihydrate, Sulfuric acid ... About Calcium Sulfate Hemihydrate. Calcium Sulfate Hemihydrate is a moderately water and acid soluble Calcium source for uses ... Customers For Calcium Sulfate Hemihydrate Have Also Viewed. Calcium Sulfate Nanoparticles / Nanopowder ...
The calcium ion has a charge of positive two, while the sulfate ion has a charge of negative... ... Calcium sulfate has the chemical formula CaSO4 and contains one calcium ion bonded to one sulfate ion. ... Calcium sulfate has the chemical formula CaSO4 and contains one calcium ion bonded to one sulfate ion. The calcium ion has a ... Calcium sulfate is often found in its dihydrate form, gypsum. For dihydrates, every molecule of calcium sulfate has two ...
Aluminum Sulfate and Calcium Acetate Adult Medication. *. ... Aluminum Sulfate and Calcium Acetate. ©2018 Memorial Sloan ...
The Global and Chinese Calcium sulfate Industry, 2013-2023 Market Research Report is a professional and indepth study on the ... sulfatecalcium sulfate marketcalcium sulfate researchcalcium sulfate reportcalcium sulfate typescalcium sulfate usescalcium ... 1.1 Brief Introduction of Calcium sulfate. 1.2 Development of Calcium sulfate Industry. 1.3 Status of Calcium sulfate Industry ... 2.1 Development of Calcium sulfate Manufacturing Technology. 2.2 Analysis of Calcium sulfate Manufacturing Technology. 2.3 ...
Learn about the potential side effects of aluminum sulfate/calcium acetate topical. Includes common and rare side effects ... Applies to aluminum sulfate / calcium acetate topical: external packet. What are some side effects that I need to call my ... Aluminum sulfate / calcium acetate topical Side Effects. Medically reviewed on Jul 4, 2018 ...
Calcium sulfate , CaSO4 or CaO4S , CID 24497 - structure, chemical names, physical and chemical properties, classification, ...
TeachMeFinance.com - explain Calcium sulfate. Calcium sulfate The term Calcium sulfate as it applies to the area of energy ...
Looking for RICCA CHEMICAL Calcium Sulfate TS Saturated Aqueous Sol (45D310)? Graingers got your back. Price:$59.22. Easy ...
... calcium acetate topical and calcium acetate. These medicines may also interact with certain foods or diseases. ... aluminum sulfate / calcium acetate topical. A total of 0 drugs are known to interact with aluminum sulfate / calcium acetate ... There were no interactions found in our database between aluminum sulfate / calcium acetate topical and calcium acetate. ... Drug interactions between aluminum sulfate / calcium acetate topical and calcium acetate. Edit this list ...
  • In-situ analyses reveal the presence of hydrogen within calcium sulfate veins crosscutting the sediments found in Gale crater. (osti.gov)
  • The Mars has a surface layer which is highly oxidized and oxidizing compared to Earth because it contains salt deposits consisting of perchlorates, chlorates, cholorites, and sulfates, perchlorates pervasive in the soil and dust, and hydrogen peroxide throughout the atmosphere. (wikipedia.org)
  • The sulfate ion carries an overall charge of −2 and it is the conjugate base of the bisulfate (or hydrogen sulfate) ion, HSO− 4, which is in turn the conjugate base of H 2SO 4, sulfuric acid. (wikipedia.org)
  • Zeise treated calcium ethyl sulfate with a suspension of barium sulfide saturated with hydrogen sulfide. (wikipedia.org)
  • There must be an underlying anaerobic aquatic habitat containing sulfates and an overlying aerobic aquatic habitat separated by a gas phase containing both oxygen and hydrogen sulfide at concentrations in excess of 2 ppm. (wikipedia.org)
  • In the absence of dissolved oxygen and nitrates, sulfates are reduced to hydrogen sulfide as an alternative source of oxygen for catabolizing organic waste by sulfate reducing bacteria (SRB), identified primarily from the obligate anaerobic species Desulfovibrio. (wikipedia.org)
  • The main use of calcium sulfate is to produce plaster of Paris and stucco . (wikipedia.org)
  • This means that every two molecules of calcium sulfate in plaster of Paris has one corresponding water molecule. (reference.com)
  • The global calcium sulphate market is primarily driven by its application in building materials such as wall plasters, quick setting cements, Plaster of Paris, as a filling agent, as a drying agent and it is also widely used in dentistry practises as a tool to form dental impression or casts. (openpr.com)
  • The present invention relates generally to the field of bone repair and more particularly to a method of repairing bone using improved calcium sulfate preparations. (patentgenius.com)
  • There are lots of kinds of calcium and the newest is a plant-based calcium from marine algae in South America that studies show actually builds bone density. (fwweekly.com)
  • A satisfactory short-term clinical results can be gained by one-stage compound grafting of antibiotic-impregnated calcium sulfate and autogenous cancellous bone in chronic calcaneal osteomyelitis, but the long-term results need further follow-up. (curehunter.com)
  • hip , and knee, announced today the successful first surgery using its new InterSep TM calcium sulfate bone void filler . (bioportfolio.com)
  • One of the newest additions to Exactech's infection-related solutions, InterSep is a 100% synthetic calcium sulfate bone void filler that is engineered to fully resorb and replace bone during the healing process. (bioportfolio.com)
  • Parathyroid hormone, which causes transfer of exchangeable calcium from bone into the blood stream, maintains calcium homeostasis by preventing either calcium deficit or excess. (thefreedictionary.com)
  • Abstract Calcium sulfate , a bioresorbable material, has been used as a bone substitute material and antibiotic vehicle. (zanran.com)
  • In both the grafted area and the previously existing area of sinus floor, the histology showed complete calcium sulfate resorption and the bone was primarily of lamellar structure. (quintpub.com)
  • After 4 weeks, most of the calcium sulphate was resorbed and new bone tissue surrounded the HA particles. (lu.se)
  • The second biphasic injectable bone substitute formulation consists of a calcium deficient HA matrix with embedded calcium sulphate crystals. (lu.se)
  • By incorporation of calcium sulphate, macroporosity may be obtained to allow bone ingrowth. (lu.se)
  • A biphasic injectable bone substitute, suitable for filling bone defects, that sets in the body, based on calcium sulfate and hydroxyapatite (HA), is presented. (lu.se)
  • article{047bf8db-6a86-4d63-a2d5-e631d36e32b7, abstract = {A biphasic injectable bone substitute, suitable for filling bone defects, that sets in the body, based on calcium sulfate and hydroxyapatite (HA), is presented. (lu.se)
  • The study group consisted of patients sustaining an acetabular fracture with intraarticular comminution or marginal impaction or both in whom calcium sulfate pellets were implanted in lieu of autologous bone graft. (ovid.com)
  • Evaluation of plain radiographs showed that the calcium sulfate pellets became undifferentiated from the surrounding bone at an average of 7 weeks postoperatively. (ovid.com)
  • Background/Objective: A biphasic ceramic bone substitute consisting of calcium sulfate and hydroxyapatite has been reported to give good clinical outcome regarding bone regeneration and may serve as a carrier for antibiotics in the treatment of bone infections. (lu.se)
  • No bone formation was found, either at 6 weeks or 12 weeks, and scanning electron microscopy showed that the calcium sulfate phase was resorbed after 6 weeks with the calcium phosphate phase remaining intact. (lu.se)
  • Conclusion: Calcium sulfate hydroxyapatite bone substitute can be used as a carrier for antibiotics or other drugs, without adverse reaction due to the fast resorption of the calcium sulfate. (lu.se)
  • Calcium sulfate barrier for regeneration of human bone defects. (minervamedica.it)
  • Calcium phosphate ceramics have been widely applied as bone substitutes, coatings, cements, drug delivery systems and tissue engineering scaffolds due to their resemblance to the mineral portion of the bone tissue, relative ease in processing and good cell attachment. (minervamedica.it)
  • This study has evaluates the bone tissue behavior of calcium sulfate barrier in bone repair in human bone, observing the GBR biological principles. (minervamedica.it)
  • Medical indications of the water is degenerative joint illnesses, chronic and sub-acute joint inflammations, vertebral disk problems, neuralgia and lack of calcium in the bone system. (wikipedia.org)
  • RATIONALE: Calcium gluconate and magnesium sulfate may prevent or lessen neurotoxicity caused by oxaliplatin. (clinicaltrials.gov)
  • It is not yet known whether calcium gluconate and magnesium sulfate are more effective than a placebo in preventing neurotoxicity caused by oxaliplatin in patients receiving combination chemotherapy. (clinicaltrials.gov)
  • PURPOSE: This randomized phase III trial is studying calcium gluconate and magnesium sulfate to see how well they work compared to a placebo in preventing neurotoxicity caused by oxaliplatin in patients receiving combination chemotherapy for stage II, stage III, or stage IV colorectal cancer that has been completely removed by surgery. (clinicaltrials.gov)
  • Determine whether calcium gluconate and magnesium sulfate (CaMg) infusions can prevent or ameliorate chronic, cumulative oxaliplatin-induced neurotoxicity in patients receiving FOLFOX combination chemotherapy for stage II, III or IV colorectal cancer. (clinicaltrials.gov)
  • Arm I: Patients receive calcium gluconate and magnesium sulfate IV over 30 minutes immediately before and after each oxaliplatin administration (once every 2 weeks) of their assigned chemotherapy regimen. (clinicaltrials.gov)
  • Calcium sulfate is described as white, odourless, orthorhombic crystals. (europa.eu)
  • A poly(itaconic acid- co -sodium vinylsulphonate) (PIASVS) was theoretically studied and experimentally evaluated as an inhibitory agent against the growth of calcium sulfate (CaSO 4 ) crystals, in both non-saline and saline solutions. (springer.com)
  • Georges Friedel also synthesised Calcium aluminate (1903) in the framework of his work on the Macles theory (twin crystals). (wikipedia.org)
  • In its elemental form, calcium has a dull gray-silver appearance. (americanelements.com)
  • An accelerator, in form of calcium sulfate dihydrate, was added to the powder phase to obtain an adequate setting time. (lu.se)
  • Indicators of calcium deficiency are: severely impeded growth (also affects roots), growing points decay (in serious cases), chlorosis (on the edges or general in the form of spots), young leaves size reduction and deformation. (aquaplantscare.uk)
  • Orthorhombic β-K2SO4 is the common form, but it converts to α-K2SO4 above 583 °C. These structures are complex, although the sulfate adopts the typical tetrahedral geometry. (wikipedia.org)
  • Like the other elements placed in group 2 of the periodic table, calcium has two valence electrons in the outermost s-orbital, which are very easily lost in chemical reactions to form a dipositive ion with the stable electron configuration of a noble gas, in this case argon. (wikipedia.org)
  • sulfate attack, in which sulfate solutions to which the concrete is exposed react with the AFm phase to form ettringite. (wikipedia.org)
  • The Cu(II)(H2O)4 centers are interconnected by sulfate anions to form chains. (wikipedia.org)
  • Tricalcium aluminate Ca3Al2O6, often formulated as 3CaO·Al2O3 to highlight the proportions of the oxides from which it is made, is the most basic of the calcium aluminates. (wikipedia.org)
  • Therefore, it seems that implanted calcium sulfate pellets in contact with joint synovial fluid are at risk for resorption without significant bony response. (ovid.com)
  • Decontamination Using a Desiccant with Air Powder Abrasion Followed by Biphasic Calcium Sulfate Grafting: A New Treatment for Peri-Implantitis," Case Reports in Dentistry , vol. 2015, Article ID 474839, 7 pages, 2015. (hindawi.com)