Title: Potassium Metaphosphate
CAS Registry Number: 7790-53-6
Synonyms: Potassium Kurrol's salt; potassium polymetaphosphate; potassium polyphosphate
Literature References: (KPO3)
x. High mol wt polymer; degree of polymerization dependent upon preparative conditions. Prepd by dehydration of KH2PO4: Pfansteil, Iler,
J. Am. Chem. Soc. 74, 6059 (1952). Structural studies: Jost,
Acta Crystallogr. 16, 623 (1963); Jost, Schulze,
ibid. 25B, 1110 (1969);
eidem, ibid. 27B, 1345 (1971). Reviews of metaphosphates: J. R. Van Wazer,
Phosphorus and Its Compounds vol 1 (Interscience, New York, 1958) pp 601-678; Thilo,
Adv. Inorg. Chem. Radiochem. 4, 1-75 (1962).
Properties: White, monoclinic crystals. d20 2.45. Insol in pure water. Sol in aq solns of alkali metal (except potassium) salts.
Density: d20 2.45