IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Potassium formate with Water

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Components:
   (1) Potassium formate; KCHO2; [590-29-4]  NIST Chemistry WebBook for detail
   (2) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Groschuff, E., Ber Dtsch. Chem. Ges. 36, 1783, 4351 (1903).

Variables:
   Temperature = -20 ºC to -157 ºC

Prepared By:
   Chr. Balarew and St. Trendafilova

Experimental Remarks:

   The molality values were calculated by the compilers.

Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)   

Solubility of potassium formate in water.

t/°C	Phase	Mass Fraction w1	m1 [mol kg-1]	Solid Phase(s)	ρ
-20	Liquid	72.8	31.8	KCHO2
+18	Liquid	76.8	39.4	KCHO2	1.573
50	Liquid	80.7	49.7	KCHO2
90	Liquid	86.8	78.2	KCHO2
120	Liquid	92.0	136.7	KCHO2
140	Liquid	96.0	285.4	KCHO2
157(a)	Liquid	100.0	---

Notes:
   ^a  Melting point.

Method/Apparatus/Procedure:
   No information is given.

Source and Purity of Materials:
   No information is given.

Estimated Errors:
   Solubility: No information is given.
   Temperature: No information is given.

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Last updated: February 18, 2015 (Created: August 17, 2007)