Fehling's reagent
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Fehling's reagent, also called Fehling's solution, is a reagent used to test for reducing sugars, named after German chemist Hermann von Fehling. It is an alkaline solution of copper(II) stabilized by tartrate ions.
Reagent
The reagent is prepared immediately before use by mixing equal volume of two solutions:
- Solution A
- 70 g of copper(II) sulfate pentahydrate dissolved in water and diluted to one litre
- Solution B
- 350 g of potassium sodium tartrate tetrahydrate ("Rochelle salt") and 100 g of sodium hydroxide dissolved in water and diluted to one litre
References
External links
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See also the corresponding article on Wikipedia. |
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