Benedict
Benedict's Solution
Benedict's Solution (pronounced: ben-uh-dikts soh-loo-shuhn) is a chemical reagent named after the American chemist Stanley Rossiter Benedict. It is primarily used in medical and biological laboratories to test for the presence of reducing sugars.
Etymology
The term "Benedict's Solution" is derived from the name of its inventor, Stanley Rossiter Benedict, an American chemist who developed the reagent in the early 20th century.
Usage
Benedict's Solution is a deep-blue alkaline solution which, when heated with a simple sugar, changes color to green, yellow, orange, red, or brown, depending on the sugar concentration. This color change is due to the reduction of copper(II) sulfate present in the solution to insoluble red copper(I) oxide.
Related Terms
- Reducing Sugar: A sugar that can donate electrons to reduce another compound. All monosaccharides are reducing sugars, as are some disaccharides, oligosaccharides, and polysaccharides.
- Reagent: A substance or compound added to a system to cause a chemical reaction or test if a reaction occurs.
- Copper(II) Sulfate: An inorganic compound that combines sulfur with copper. It is used in Benedict's Solution to test for the presence of reducing sugars.
- Copper(I) Oxide: A red or reddish-brown insoluble compound formed during the reaction between Benedict's Solution and a reducing sugar.
External links
- Medical encyclopedia article on Benedict
- Wikipedia's article - Benedict
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