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Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO 4 and related hydrates. In the form of γ- anhydrite (the anhydrous form), it is used as a desiccant . One particular hydrate is better known as plaster of Paris , and another occurs naturally as the mineral gypsum .
Hard water also forms deposits that clog plumbing. These deposits, called "scale", are composed mainly of calcium carbonate (CaCO 3), magnesium hydroxide (Mg(OH) 2), and calcium sulfate (CaSO 4). [3] Calcium and magnesium carbonates tend to be deposited as off-white solids on the inside surfaces of pipes and heat exchangers.
While humans have been able to adapt to higher levels of concentrations with time, some effects of ingestion of sulfur water has found to have cathartic effects on people consuming water with sulfate concentrations of 600 mg/litre according to a study from the US Department of health in 1962. Some adverse effects that have been found include ...
ATC code A12 Mineral supplements is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
Biphasic calcium sulfate is a granulated powder composed of calcium sulfate hydrate (CaSO 4 •2H 2 O) and calcium sulfate hemihydrate (CaSO 4 • 1 / 2 H 2 O). [citation needed] It is used primarily as a bone grafting material in dental augmentation procedures such as socket grafting, lateral augmentation, sinus lift, cyst enucleation and more.
This transformation is reversible, with gypsum or calcium sulfate hemihydrate forming anhydrite by heating to around 200 °C (400 °F) under normal atmospheric conditions. [6] Anhydrite is commonly associated with calcite, halite, and sulfides such as galena, chalcopyrite, molybdenite, and pyrite in vein deposits.
Common side effects include constipation and nausea. [1] When taken by mouth high blood calcium is uncommon. [1] Calcium supplements, unlike calcium from dietary sources, appear to increase the risk of kidney stones. [1] Adults generally require about a gram of calcium a day. [1] Calcium is particularly important for bones, muscles, and nerves. [1]
Calcium is a common constituent of multivitamin dietary supplements, [8] but the composition of calcium complexes in supplements may affect its bioavailability which varies by solubility of the salt involved: calcium citrate, malate, and lactate are highly bioavailable, while the oxalate is less.