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Benedict's reagent (often called Benedict's qualitative solution or Benedict's solution) is a chemical reagent and complex mixture of sodium carbonate, sodium citrate, and copper(II) sulfate pentahydrate. [1] It is often used in place of Fehling's solution to detect the presence of reducing sugars and other reducing substances. [2]
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. In such a reaction, the sugar becomes a carboxylic acid. All monosaccharides are reducing sugars, along with some disaccharides, some oligosaccharides, and some polysaccharides.
Stanley Benedict was part of many Chemistry societies. He was a member of the National Academy of Sciences, [1] American Association for the Advancement of Science, [1] American Society of Biological Chemists (President 1919-1920), American Physiological Society, [4] Phi Beta Kappa, [1] Corresponding Member of the Societe Biologie de Paris, [1] Sigma Xi, [4] Alpha Omega Alpha, [1] The Harvey ...
The IUPAC definition of a solid solution is a "solid in which components are compatible and form a unique phase". [3]The definition "crystal containing a second constituent which fits into and is distributed in the lattice of the host crystal" given in refs., [4] [5] is not general and, thus, is not recommended.
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In contrast to ideal solutions, regular solutions do possess a non-zero enthalpy of mixing, due to the W term. If the unlike interactions are more unfavorable than the like ones, we get competition between an entropy of mixing term that produces a minimum in the Gibbs free energy at x 1 = 0.5 and the enthalpy term that has a maximum there.
A possible solution is to pretreat the sewage to remove wetting solutions, limiting the amount of wetting solution in contact with the membrane. [32] Other possible solutions to lengthen durability of the membrane include modification of the membrane material repellent to water and oil, air-backwashing and membrane surface geometry modification.
When “3 Body Problem” creators D.B. Weiss, David Benioff and Alexander Woo decided to adapt Cixin Liu’s sci-fi novel trilogy into a series, they knew immediately whom they wanted to play the ...