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.
Origin of Fehling's solutionAfter Hermann von Fehling, (1812–1885), German chemist.
(plural Fehling's solutions)
- (chemistry) an alkaline solution of copper sulphate which changes from blue to red in the presence of an aldehyde or a reducing sugar
From Hermann von Fehling, German chemist.