Adipic Acid

inquiry

Your sales and customer service desk partners within China Amines Co will continue to serve you. You can also contact us via our headquarter office

1. Chemical Structure and Properties

Molecular Formula: C₆H₁₀O₄
Structural Formula: HOOC-(CH₂)₄-COOH — A straight-chain dicarboxylic acid with two terminal carboxyl groups.

Physical Properties:

Appearance: White crystalline solid
Melting Point: 152°C
Boiling Point: 337°C (decomposes)
Density: 1.36 g/cm³ at 20°C
Solubility: Soluble in water (15 g/100 mL at 20°C), soluble in alcohols, slightly soluble in nonpolar solvents

Chemical Properties:

2. Industrial Applications

Nylon 6,6 Production: Key monomer in the synthesis of nylon 6,6 polymers
Polyesters & Resins: Used as a building block for polyester resins and plasticizers
Coatings & Paints: Acts as a curing agent for epoxy resins and alkyd coatings
Food Additive & Pharmaceuticals: Sometimes used as an acidity regulator and intermediate

3. Safety and Toxicology

Health Hazards: Low acute toxicity; may cause mild skin or eye irritation on contact
Fire & Explosion: Not highly flammable; combustible under strong heat
Protective Measures: Use gloves, goggles, and avoid inhaling dust

4. Environmental and Regulatory Considerations

Environmental Impact: Biodegradable; low environmental persistence
Regulatory Compliance: Listed under EU REACH; TSCA compliant in the USA
Transport: UN 3077 (Environmentally hazardous substance, solid, n.o.s.), Packing Group III

5. Case Studies and Application Insights

Nylon Fiber Manufacturing: Adipic acid is combined with hexamethylenediamine to produce high-strength nylon 6,6 fibers for textiles and engineering plastics
Polyester & Coatings: Used in polycondensation reactions to produce high-performance resins with excellent mechanical and chemical resistance