Components:
(1) Copper formate,
Cu(CHO2)2; [544-19-4]
NIST WebBook
(2) Nickel formate,
Ni(CHO2)2; [3349-06-2]
NIST WebBook
(3) Zinc formate,
Zn(CHO2)2; [557-41-5]
NIST WebBook
(4) Formic acid,
CH2O2; [64-18-6]
NIST WebBook
Original Measurements
Kendall, J.; Adler, H.; J. Am. Chem. Soc. 43, 1470 (1921).
Variables:
Ambient temperature: 298 and 413 K
Prepared by:
Method/Apparatus/Procedure:
Solubility values were determined by the freezing point method, but no details are given.
Source and Purity of Materials:
- The copper, nickel and zinc salts were prepared by dissolving the carbonate in 90% formic acid. The copper and nickel salts were recrystallized from water and then dehydrated by heating the copper salt at 353 K and the nickel salt at 413 K. Nothing is stated about the purity of any of the salts. The formic acid was prepared by treating a c.p. product with B2O3 and then distilling in vacuo until a product melting above 281.6 K was obtained.
Estimated Errors:
Ambient temperature: No information is given.
Mass concentration (m/v) (1): No information is given.
Experimental Values:
Note: Binary systems, each consisting of a metal formate and formic acid, were studied. Because of the insolubility of each metal formate in formic acid, only one datum could be obtained for each system. The following four statements summarize the results.(a) The solubility of copper(II)formate in formic acid at 413 K is less than 0.10 mol %.
(b) The solubility of nickel formate in formic acid at 298 K is less than 0.1 mol %.
(c) The solubility of zinc formate in formic acid at 298 K is less than 0.1 mol %.
