The chemical formula for barium phosphate is Ba3(PO4)2. Within the formula, the symbol Ba represents barium, P represents phosphorus and O represents oxygen. The numbers in the chemical formula Ba3(PO4)2 indicate the number of atoms of each element in the compound.
One molecule of barium phosphate contains three atoms of barium, two atoms of phosphorus and eight atoms of oxygen. The number outside of the parentheses applies to both elements listed within the parentheses. Barium phosphate has a molar mass of 601.92 grams per mole. It is in the organophosphorus chemical class. It has the appearance of a white powder.