The chemical formula for gypsum is CaSO4.2H2O. Gypsum is also known as hydrous calcium sulfate. Dehydrated gypsum is colloquially known as plaster of Paris, which becomes gypsum again with the addition of water. More » Science Chemistry Atoms & Molecules

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 two. More » Science Chemistry Chemical Equations

Tricalcium silicate, also called alite, is one of the most abundant compounds found in cement and has the chemical formula Ca3SiO4. Its shorthand formula is C3S. Another abundant compound in cement is dicalcium silicate,... More » Home & Garden Home Maintenance Building Materials
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Some examples of silicate minerals are quartz, talc, tourmaline and garnet; some examples of nonsilicate minerals are calcite, gypsum, alabaster, and the native elements copper, gold and silver. A negatively charged sili... More » Science Chemistry Atoms & Molecules

Solid calcium can be found in sedimentary rock in the earth's crust, and in the minerals gypsum, dolomite and calcite. Elemental calcium is not found naturally on earth because it easily reacts to oxygen and water and fo... More » Science Chemistry Atoms & Molecules

The molecular and chemical formula for sulfurous acid is H2O3S. It's created when sulfur dioxide dissolves in water. As of 2014, it has been detected in the gas phase, but there is no evidence of its existence in solutio... More » Science Chemistry Atoms & Molecules

Ca(C2H3O2)2 is the chemical formula for the ionic compound calcium acetate. Calcium acetate is used as a medication for the treatment of end-stage renal disease. It is also used as a food additive in some candies, as a b... More » Science Chemistry Atoms & Molecules