Definition of Fehling's solution in English:

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Fehling's solution

Pronunciation: /ˈfeɪlɪŋz/
(also Fehling's reagent)


[mass noun]
An alkaline solution of copper(II) sulphate and a tartrate, used in a laboratory test for sugars.
Example sentences
  • Some are remembered by association with useful substances, like Fehling's solution, or Glauber's salt.
  • The galactomannan was obtained from the alkali-soluble fraction by selective precipitation (Fehling's reagent).
  • Fructose gives a positive test with Fehling's solution too.


Late 19th century: named after the German chemist Hermann von Fehling (1812–85).

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