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Fehling's solution
CHF 39.25
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VFV5LK83DU4
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Geliefert zwischen Mi., 04.03.2026 und Do., 05.03.2026
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High Quality Content by WIKIPEDIA articles! Fehling's solution is a solution used to differentiate between water soluble aldehyde and ketone functional groups, although ketose monosaccharides (such as fructose) will also test positive, due to conversion to aldoses by the base in the reagent. For this reason, Fehling's reagent is sometimes referred to as a general test for monosaccharides. Fehling's is used to test for aldoses and ketoses, although formic acid (methanoic acid) also gives a positive Fehling's test result, as it does with Tollens' test, Benedict's test, and many more aldehyde tests.To carry out the test the substance to be tested is heated together with Fehling's solution; a red precipitate indicates the presence of an aldehyde. Ketones (except alpha-hydroxy-ketones) do not react. An example for its use is to screen for glucose in urine, thus detecting diabetes. An other use is in conversion / breakdown of starch to glucose syrup and maltodextrins, to measure the amount of reducing sugars and calculating the dextrose equivalent (DE) of the starch sugar.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130850289
- Genre Chemistry
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Anzahl Seiten 120
- Herausgeber Alphascript Publishing
- EAN 9786130850289
- Titel Fehling's solution
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