New Crystals in the CsHSO4–CsH2PO4–NH4H2PO4–H2O System

Аннотация

The phase equilibria in the CsHSO₄–CsH₂PO₄–NH₄H₂PO₄–H₂O four-component aqueous salt system have been studied. The crystallization ranges and solubilities have been determined for the CsHSO₄, NH₄H₂PO₄, and (Cs,NH₄)H₂PO₄ phases and the phases obtained for the first time: (Cs,NH₄)₄(HSO₄)₃(H₂PO₄) and (Cs,NH₄)₂(HSO₄)(H₂PO₄). Cs₃NH₄(HSO₄)₃(H₂PO₄) and CsNH₄(HSO₄)(H₂PO₄) crystals of stoichiometric composition have also been grown for the first time.