Adipinsäure

Adipic acid is the organic compound with the formula (CH2)4(COOH)2. From the industrial perspective, it is the most important dicarboxylic acid: About 2.5 billion kilograms of this white crystalline powder are produced annually, tmainly as a precursor for he production of nylon . Adipic acid otherwise rarely occurs in nature. Uses: By far the majority of the 2.5 billion kg of adipic acid produced annually is used as monomer for the production of nylon by a polycondensation reaction with hexamethylene diamine forming 6,6-nylon.Other major applications also involve polymers: it is a monomer for production of Polyrethane and its esters are plasticizers , especially in pvc. ItemsGuaranteeTest resultTest methodAppearanceWhite powderWhite powderContent %(m/m)≥99.799.84SH/T1499.1-1997 Melting point≥151.5152.9GB/T 617-88 moisture %(m/m)≤0.200.16GB/T 6283-88 Ash, mg/kg≤72SH/T1499.4-1997 Ammonia solution colour(in pt-co scale)≤51SH/T1499.3-1997 Fe Content, mg/kg≤1.00.2SH/T1499.5-1997 Nitrcacidcontent,mg/kg≤101.3SH/T1499.7-1997 Content of oxidizable compounds as oxalic acid,≤6017SH/T1499.8-1997 Melt colour(in pt-co scale) ≤5010SH/T1499.9-1997