Calcium phosphate and other salts are produced by
Answers
Calcium phosphate appears as a white amorphous or crystalline powder that is odourless and tasteless. It is insoluble in ethanol, acetic acid but soluble in dilute nitric acid and hydrochloric acid. It slightly dissolves in water. It is found in bones, milk, teeth, and ground.
Apatite is a mineral rock which is an impure and complex form of calcium phosphate which produces tribasic calcium phosphate. An apatite is a form of phosphorite which contains calcium phosphate mixed with other compounds.
Calcium phosphates are important materials in biology, geology, industry , medicine and dentistry. Its formation, functions and applications depend on its structure , composition, solubility and stability.
Preparation of Calcium Phosphate
It can also be produced by reacting phosphoric acid (H3PO4) with solid calcium hydroxide Ca(OH)2
Ca(OH)2+H3PO4→Ca3(PO4)2+H2O (unbalanced)
3Ca(OH)2+2H3PO4→Ca3(PO4)2+6H2O (balanced equation)
Dibasic calcium phosphate can be produced in the former of these reactions by using an aqueous solution of calcium hydroxide. Monobasic calcium phosphate is obtained by adding excess phosphoric acid to either a dibasic solution or a tribasic calcium phosphate solution and letting the solution to evaporate.
Answer:
reaction of an acid and a base in a certain quantity
Explanation: