Detail of "16270-76-1"

CAS Number:
16270-76-1
Name:
Diphosphoric acid,potassium salt (1:3)
Molecular Structure:
Formula:
H4O7 P2 . 3 K
Molecular Weight:
292.246162
Synonyms:
Diphosphoricacid, tripotassium salt (9CI); Potassium pyrophosphate (K3HP2O7) (7CI);Pyrophosphoric acid, tripotassium salt (8CI); Potassium hydrogen phosphate(K3HP2O7); Tripotassium diphosphate; Tripotassium pyrophosphate
Density:
g/cm³
Boiling Point:
°Cat760mmHg
Flash Point:
°C

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Solubility in the potassium dihydrogen phosphate-dipotassium hydrogen phosphate-dipotassium dihydrogen diphosphate-tripotassium hydrogen diphosphate-water system at 0°C: Solubility in the potassium dihydrogen phosphate-dipotassium hydrogen phosphate-dipotassium dihydrogen diphosphate-tripotassium hydrogen diphosphate-water system at 0°C. Ebert, Miroslav; Lukes, Ivan; Eysseltova, Jitka; Nassler, Jindrich; Micka, Zdenek (Dep. Inorg. Chem., Charles Univ., Prague 128 40/2, Czech.). Collect. Czech. Chem. Commun., 49(1), 25-8 (English) 1984. CODEN: CCCCAK. ISSN: 0366-547X. DOCUMENT TYPE: Journal CA Section: 19 (Fertilizers, Soils, and Plant Nutrition) Section cross-reference(s): 68 The phase diagram obtained at 0° for the KH2PO4-K2HPO4-K2H2P2O7-K3HP2O7-H2O system indicated that 2 points of simultaneous crystn. of 3 solids exist. At one of these points the solids KH2PO4, K2HPO4.6H2O, and K3HP2O7 were in equil. and the compn. corresponded to 28. 14691-84-0 and 16270-76-1 are cas registry numbers of chemicals which are used as reagents here.1% K2O and 27.9% P2O5, whereas for the other point the compn. corresponded to 27.6% K2O and 30.5% P2O5, with KH2PO4, K3HP2O7. The content of K2O and P2O5 was highest at the eutonic point of the K2H2P2O7-K3HP2O7-H2O system, whereas the agrochem. most favorable K/P concn. ratio (1.74) was at the eutonic point of the K2HPO4-KH2PO4-H2O system. Results are discussed in terms of multicomponent P-K-type liq. fertilizer manuf. .