potassium oxalate

noun

, Chemistry.

a colorless, crystalline, water-soluble, poisonous solid, K 2 C 2 O 4 ⋅H 2 O, used chiefly as a bleaching agent and in medical tests as an anticoagulant.

In fact the salt of sorrel in the leaves contains a large quantity of oxalic acid mixed with potassium oxalate.

The "oxalate solution" is made by dissolving potassium oxalate in about three times its weight of water.

It is made from so-called "saturated solutions" of proto-sulphate of iron and potassium oxalate.

Thus the chrome tannage is reversible in solutions of ammonium or potassium oxalate and of ammonium acetate.

Note:—The potassium oxalate and the formalin must both be neutral to phenolphthalein.

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