Phosphates are the naturally occurring form of the element phosphorus, found in many phosphate minerals. Elemental phosphorus and phosphides are not found (rare phosphide minerals may be found in meteorites). In mineralogy and geology, phosphate refers to a rock or ore containing phosphate ions.
| Formula. | Na6 P6 O18 | M.W. | 612 | | Physical Status | White Powder | P2 O5 Content Min | 62.00% / 65.00 % | | Chloride | 0.05% | Iron | 0.005% | | Solubility. | Complete | | |
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Potassium phosphate is a generic term for the salts of potassium and phosphate ions including:
Sodium phosphate is a generic term for the salts of sodium and phosphoric acid. They are:
Calcium phosphate is the name given to a family of minerals containing calcium ions (Ca2+) together with orthophosphates (PO43-), metaphosphates or pyrophosphates (P2O74-) and occasionally hydrogen or hydroxide ions.
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