Crystallography Reports | 2019
New Crystals in the CsHSO4–CsH2PO4–NH4H2PO4–H2O System
Abstract
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.