[1] Material of relatively high purity, as required for baking, is produced by treating calcium hydroxide with phosphoric acid: Samples of Ca(H2PO4)2 tend to convert to dicalcium phosphate: Superphosphate fertilizers are produced by treatment of "phosphate rock" with acids ("acidulation").

Residual HF typically reacts with silicate minerals co-mingled with the phosphate ores to produce hexafluorosilicic acid (H2SiF6).

[2] Calcium dihydrogen phosphate is used in the food industry as a leavening agent, i.e., to cause baked goods to rise.

When combined in a ready-made baking powder, the acid and alkali ingredients are included in the right proportions such that they will exactly neutralize each other and not significantly affect the overall pH of the product.

AMCP and MCP are fast acting, releasing most carbon dioxide within minutes of mixing.