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Adipic acid or hexanedioic acid is the organic compound with the formula (CH 2) 4 (COOH) 2. From an industrial perspective, it is the most important dicarboxylic acid : about 2.5 billion kilograms of this white crystalline powder are produced annually, mainly as a precursor for the production of nylon .
Dicarboxylic acids are used in the preparation of copolymers such as polyamides and polyesters. The most widely used dicarboxylic acid in the industry is adipic acid, which is a precursor in the production of nylon. Other examples of dicarboxylic acids include aspartic acid and glutamic acid, two amino acids in the human body.
The demand for adipic acid is expected to be driven by an increase in the need for electronic goods in the near future. Adipic Acid Industry Overview. The global adipic acid market is observed by its widespread application in the production of nylon 6,6, polyurethane and various other industrial products. It is used with better mechanical ...
Nylon 66 is synthesized by polycondensation of hexamethylenediamine and adipic acid. Equivalent amounts of hexamethylenediamine and adipic acid are combined in water. In the original implementation, the resulting ammonium/carboxylate salt was isolated and then heated either in batches or continuously to induce polycondensation.
Dibasic ester or DBE is an ester of a dicarboxylic acid.Depending on the application, the alcohol may be methanol or higher molecular weight monoalcohols. Mixtures of different methyl dibasic esters are commercially produced from short-chain acids such as adipic acid, glutaric acid, and succinic acid. [1]
Dimethyl adipate is prepared by esterification of adipic acid with methanol. Less conventional routes include the hydroesterification of butadiene and the carbonylation of 1,4-dimethoxy-2-butene. [2] It reacts with concentrated ammonia to give the diamide (CH 2 CH 2 C(O)NH 2) 2.
Adipic acid dihydrazide (ADH) is a chemical used for cross-linking water-based emulsions. It can also be used as a hardener for certain epoxy resins. [2] ADH is a symmetrical molecule with a C4 backbone, and the reactive group is C=ONHNH 2. Dihydrazides are made by the reaction of an organic acid with hydrazine. Other dihydrazides with ...
It is the diester of 2-ethylhexanol and adipic acid. It is a colorless oily liquid. DEHA is sometimes called "dioctyl adipate", incorrectly. Another name is di(2-ethylhexyl) adipate. The abbreviation DOA has been unfortunately used for both Bis(-2-ethylhexyl)-adipate and dioctyl adipate
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