Fehling's solution

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cupric

 [ku´prik]
pertaining to or containing divalent copper.
cupric sulfate a crystalline salt of copper used as an emetic, astringent, and fungicide, as an oral antidote to phosphorus poisoning, as a topical treatment of cutaneous phosphorus burns, and as a catalyst in iron deficiency anemia.

Fehling's solution

(fā′lĭngz)
n.
An aqueous solution of copper sulfate, sodium hydroxide, and potassium sodium tartrate used to test for the presence of sugars and aldehydes in a substance, such as urine.

Fehling's solution

A solution of copper sulphate, sodium hydroxide and sodium potassium tartrate once widely used to test urine for the presence of sugar. Nowadays, urine is usually tested with colour change dip sticks. (Hermann Christian von Fehling, 1812–85, German chemist).