Is calcium oxalate soluble in water?

2 Answers
Meave60
May 5, 2015

According to http://www.americanelements.com/caoxl.html , calcium oxalate, #"CaC"_2"O"_4"# is "highly insoluble in water."

Stefan V.
May 5, 2015

No, calcium oxalate, #CaC_2O_4#, is not soluble in aqueous solution.

The solubility of calcium oxalate is listed at 6.7 mg/L, or #6.7 * 10^(-3)"g/L"#, far less than the #"1 g/L"# threshold used to distinguish between soluble and insoluble compounds.

In fact, calcium oxalate is one of the major components of kidney stones.

http://www.medical-labs.net/example-of-microscopic-urine-sediment-exam-results-794/

http://pixshark.com/calcium-oxalate-stones.htm

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