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Topic: Hydrolysis


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In the News (Thu 31 Dec 09)

  
  Blister & Laminate Hydrolysis in Fiberglass Boat Hulls
It has become obvious that hydrolysis is the real problem and that blisters are an unsightly and destructive by-product of the hydrolysis of the polyester resin in the gelcoat and laminate.
The hydrolysis process softens, weakens and removes the resin from the laminate, thus reducing the rigidity of the laminate.
Blister diameter is often associated with the depth of the blister and thus a rough gauge of the depth of the hydrolysis.
www.zahnisers.com /repair/blister/blister1.htm   (5801 words)

  
  Hydrolysis
Hydrolysis is a chemical decomposition process that uses water to split chemical bonds of substances.
There are two types of hydrolysis, acid and enzymatic.
Feedstocks that may be appropriate for acid or enzymatic hydrolysis typically are plant-based materials containing cellulose.
www.ciwmb.ca.gov /Organics/Conversion/Hydrolysis   (231 words)

  
  Animal Lab News®- Alkaline Hydrolysis, Gordon I. Kaye, PH.D., Peter B. Weber, PH. D., William M. ...
Historically, alkaline hydrolysis has been used to study the chemical structure of biological molecules, to prepare skeletal remains for study, and make soaps from animal fats by cooking the fat with lye to release the fatty acids, then cooling the mixture to precipitate the fatty acids as their sodium salts.
Alkaline hydrolysis as an improved alternative to incineration for disposing of waste biologic tissues and animal carcasses is based on the same chemical reaction, with strong alkali and heat used to speed the process.
Alkaline hydrolysis also removes critical groups from the molecules of glycoproteins, glycosaminoglycans, and glycolipids, the principal carbohydrates of connective tissue, as well as from the chitinous exoskeletons of insects and other invertebrates (e.g., the carapaces of crabs and lobsters); (1-3)-linked glycans, such as chondroitin sulfates, are slowly degraded.
www.animallab.com /articles.asp?pid=76   (2768 words)

  
  Hydrolysis - Wikipedia, the free encyclopedia
Hydrolysis is a chemical reaction or process in which a molecule is split into two parts by reacting with a molecule of water, which has the chemical formula H
With acid-catalysed hydrolysis a dilute acid is used to protonate the carbonyl group in order to activate it towards nucleophilic attack by a water molecule.
An important example of this reaction is the release of fatty acids from glycerol in triglyceride hydrolysis, as occurs during saponification.
en.wikipedia.org /wiki/Hydrolysis   (659 words)

  
 Hydrolysis of Organic Compounds
Hydrolysis is therefore the reaction of an organic compound with water.
Hydrolysis reactions are said to be acid-catalysed or base-catalysed (alkaline hydrolysis).
In the acid-catalysed hydrolysis of a nitrile a primary amide is formed, which in turn is hydrolysed to the ammonium salt and then the carboxylic acid.
www.avogadro.co.uk /organic/hydrolysis/hydrolysis.htm   (662 words)

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