Potassium Dioxalatocuprate II 2-Hydrate

The compound is soluble in warm water but begins to decompose slowly into copper(II) oxalate, which precipitates shortly after dissolution of the complex. The decomposition is hastened by the addition of strong acid. The material is only very slightly soluble in the common organic solvents such as acetone, benzene, carbon tetrachloride, chloroform, ethanol, and methanol. The blue crystals lose water rapidly above 150° and the resulting compound decomposes at 260°. 

Submitted by George B. Kauffman-]- and Robert P. PinnellI Checked by James Peterson, David Williams, J and A. L. AllredJ 

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