Ads
related to: seliwanoff's reagentscbt.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
An example of a positive Seliwanoff’s test. Seliwanoff’s test is a chemical test which distinguishes between aldose and ketose sugars. If the sugar contains a ketone group, it is a ketose. If a sugar contains an aldehyde group, it is an aldose. This test relies on the principle that, when heated, ketoses are more rapidly dehydrated than ...
Theodor Seliwanoff (or Seliwanow), born as Fedor Fedorovic Selivanov (October 8, 1859 in Gorodischtsche, Pensa–1938) was a chemist who invented the Seliwanoff's test in 1887 while working in Metchnikow University of Odesa in Odessa, Russian Empire.
Ketoses and aldoses can be chemically differentiated through Seliwanoff's test, where the sample is heated with acid and resorcinol. [4] The test relies on the dehydration reaction which occurs more quickly in ketoses, so that while aldoses react slowly, producing a light pink color, ketoses react more quickly and strongly to produce a dark red color.
Seliwanoff's test differentiates between aldose and ketose sugars; Test for lipids: add ethanol to sample, then shake; add water to the solution, and shake again. If fat is present, the product turns milky white. The Sakaguchi test detects the presence of arginine in protein; The Hopkins–Cole reaction tests for the presence of tryptophan in ...
Resorcinol (or resorcin) is a phenolic compound.It is an organic compound with the formula C 6 H 4 (OH) 2.It is one of three isomeric benzenediols, the 1,3-isomer (or meta-isomer).
This category was created to provide a "home" for inorganic compounds (such as NaBH 4) that are widely used in stoichiometric quantities in organic chemistry, but widely used organic reagents (such as oxalyl chloride) may belong here also.
Molisch test (using α-napthol) indicating a positive result (see purple ring). Molisch's test is a sensitive chemical test, named after Austrian botanist Hans Molisch, for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid or hydrochloric acid to produce an aldehyde, which condenses with two molecules of a phenol (usually α-naphthol, though other ...
Sanger reagent; Saponification; Sarett oxidation; Schiemann reaction [18] Schiff reaction; Schiff test; Schlenk equilibrium; Schlosser modification; Schlosser variant; Schmidlin ketene synthesis; Schmidt degradation; Schmidt reaction; Scholl reaction; Schorigin Shorygin reaction, Shorygin reaction, Wanklyn reaction; Schotten–Baumann reaction ...
Ads
related to: seliwanoff's reagentscbt.com has been visited by 10K+ users in the past month