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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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

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

The chemical formula for calcium phosphate is Ca3(PO4)2. Calcium phosphate is composed of three atoms of calcium, two atoms of phosphorus and eight atoms of oxygen, for a combined molar mass of 310.17 grams per mole. More » Science Chemistry Atoms & Molecules

(NH4)2CO3 is the chemical formula of ammonium carbonate, a chemical compound with a molar mass of 96.09 grams per mole. Its density is 1.50 grams per cubic centimeter. It is normally soluble in water, but it decomposes i... More » Science Chemistry Atoms & Molecules