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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.
Items | Guarantee | Test result | Test method |
Appearance | White powder | White powder |
|
Content %(m/m) | ≥99.7 | 99.84 | SH/T1499.1-1997 |
Melting point | ≥151.5 | 152.9 | GB/T 617-88 |
moisture %(m/m) | ≤0.20 | 0.16 | GB/T 6283-88 |
Ash, mg/kg | ≤7 | 2 | SH/T1499.4-1997 |
Ammonia solution colour(in pt-co scale) | ≤5 | 1 | SH/T1499.3-1997 |
Fe Content, mg/kg | ≤1.0 | 0.2 | SH/T1499.5-1997 |
Nitrcacidcontent,mg/kg | ≤10 | 1.3 | SH/T1499.7-1997 |
Content of oxidizable compounds as oxalic acid, | ≤60 | 17 | SH/T1499.8-1997 |
Melt colour(in pt-co scale) | ≤50 | 10 | SH/T1499.9-1997 |
Adipic Acid