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In organic chemistry, Keller's reagent is a mixture of anhydrous (glacial) acetic acid, concentrated sulfuric acid, and small amounts of ferric chloride, used to detect alkaloids. Keller's reagent can also be used to detect other kinds of alkaloids via reactions in which it produces products with a wide range of colors.
Reducing form of glucose (the aldehyde group is on the far right). A reducing sugar is any sugar that is capable of acting as a reducing agent. [1] In an alkaline solution, a reducing sugar forms some aldehyde or ketone, which allows it to act as a reducing agent, for example in Benedict's reagent.
Keller's reagent can refer to two different reagents: Keller's reagent (metallurgy) , used to etch aluminum alloys Keller's reagent (organic) , used to detect alkaloids
The dehydrated ketose then reacts with two equivalents of resorcinol in a series of condensation reactions to produce a molecule with a deep cherry red color. Aldoses may react slightly to produce a faint pink color. Fructose and sucrose are two common sugars which give a positive test. Sucrose gives a positive test as it is a disaccharide ...
Rain, snow in the East on Thanksgiving, Black Friday. A developing storm could bring a rainy and snowy holiday to the eastern half of the country, according to AccuWeather meteorologists.. If the ...
The products of sucrose decomposition are glucose and fructose, both of which can be detected by Benedict's reagent as described above. Starches do not react or react very poorly with Benedict's reagent because of lesser number of reducing sugar components that occur at the ends of the carbohydrate chains.
Stanley is recalling 2.6 million mugs sold in the U.S. after the company received dozens of consumer complaints, including some users who reported getting burned and requiring medical attention ...
Not all questions have simple, yes or no answers—including this one. While many dogs are lactose intolerant, many are not! Lactose intolerance develops as a dog grows up, so it can be impossible ...