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Atomistry » Calcium » Chemical Properties » Calcium Selenophosphate | ||
Atomistry » Calcium » Chemical Properties » Calcium Selenophosphate » |
Calcium Selenophosphate
Two selenophosphates, CaHPSeO3. 2CaHPO4.15H2O and CaHPSeO3.8H2O, in which part of the oxygen is replaced by selenium, have been described.
Double Salts of Calcium Selenophosphate
Various double phosphates of the alkalies with calcium are known: the orthophosphates, CaKPO4, CaNaPO4 and Ca3Na6(PO4)4, Ca(NH4)PO4.7H2O; the pyrophosphates, CaK2P2O7 and CaNa2P2O7.4H2O; and the metaphosphates, 2Ca(PO3)2.2NaPO3. 6H2O and Ca(PO3)2.2NH4PO3.2H2O.
A uranium calcium phosphate, UO2.CaO.P2O5, and a thorium calcium phosphate, ThO2.CaO.P2O5, have been isolated, and there is a natural calcium manganese phosphate, fairfieldite, (Ca,Mn)3(PO4)2, and also a natural calcium uranyl phosphate, autunite, Ca(UO2)2(PO4)2.8H2O. |
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