Adipic acid
General Product Information
| Article | Adipic acid |
| Synonyms | Hexanedioic acid, Butane-1,4-dicarboxylic acid, Hexane-1,6-dioic acid, 1,4-butanedicarboxylic acid |
| CAS No. | 124-04-9 |
| EEG No. | 607-144-00-9 |
| EINECS No. | 204-673-3 |
| IMO | – |
| Tariff Code | 29171200 |
| UN No. | – |
| VLG/ADR | – |
Description
Adipic acid, also known as hexane-1,6-dioic acid, is a white, crystalline dikarboxylic acid. It is an important industrial raw material and is mainly used in the production of nylon 6,6, a versatile polyamide widely used in textiles, plastic products and Technical Applications.
Characteristics
- Odor: Odorless.
- Hygroscopic: -.
- Color: White.
- Grade: Technical.
- Solubility: Slightly soluble in water; Highly soluble in ethanol, acetone and ether.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | C6H10O4 |
| Molar Weight | 146.14 g/mol |
| Melting Point | 152-154 °C |
| Boiling Point | Approx. 337 °C. |
| Density | 1.36 g/cm³ |
| Refractive Index | – |
| pH | 2.5-3.5 (on 1% solution) |
Applications
Adipic acid is applied in various ways, for instance:
1. Nylon Production
Adipic acid is combined with hexamethylenediamine to produce nylon 6,6. Nylon 6,6 is widely used in textiles, automotive parts, technical plastics and consumer products.
2. Polyurethane & Plasticizers
It is used in the production of polyurethane resins, plasticizers for PVC and as a raw material for polyesters.
3. Paper Industry
Improves the wet strength of paper products via polyamide-epichlorohydrin resins.
4. Coatings & Plastics
In alkyd coatings, reinforced plastics and as a buffer at flue gas desulfurization.
Interessing Links
- CAS Common Chemistry – Adipic Acid
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Adipic Acid – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Adipic acid