Overview
Adipic acid (CAS 124-04-9 ), also supplied as molten adipic acid and approved under E355 , is a dicarboxylic acid used across food, polymer, and personal care manufacturing.
It functions as an acidulant, pH buffer, and monomer feedstock depending on the application. In food production, it acts as an acidulant and leavening agent in dry beverage mixes and baked goods.
Its low hygroscopicity gives it a handling advantage over alternatives in gelatin desserts. Nylon 6,6 production is its largest industrial outlet, where it reacts with hexamethylenediamine.
This process forms the polymer backbone used in engineering plastics, fibers, and automotive components. In personal care formulations, it functions as a pH adjuster and buffering agent.
It is commonly found in creams, cleansers, and rinse-off products. It also serves as a precursor in polyurethane polyol and plasticizer synthesis where controlled chain length is required.
The product is supplied as a white crystalline powder or in molten liquid form for bulk industrial delivery. Standard grades include food-grade ( FCC compliant) and technical-grade.
Food applications require material meeting purity specifications for direct use. Packaging ranges from 25 kg bags to bulk tanker shipments for molten supply to various manufacturing facilities.
Contact us for supply of Adipic acid
Physical Properties
| Melting Point | 152 °C |
| Boiling Point | 338 °C |
| Density | 1.360 g/cm³ @ Temp: 25 °C |
| Flash Point | 385 °F |
| Appearance | Adipic acid is a combustible, white, crystalline solid or powder. Odorless. |
| Color | White |
| Odor | wh. monoclinic prisms, pract. odorless |
| Form | Solid |
| Water Solubility | 1.44 g/100 mL (15 ºC) |
| Vapor Pressure | 1 mm Hg ( 159.5 °C) |
| Refractive Index | 1.4880 |
| pH | 2.7 (23g/l, H2O, 25℃) |
| Log P | 0.09 at 25℃ |
Safety & Handling
Warning GHS07 GHS05 GHS08 Hazard Statements H316 Causes mild skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H333 May be harmful if inhaled H335 May cause respiratory irritation H372 Causes damage to organs through prolonged or repeated exposure H402 Harmful to aquatic life Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P304+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29171210 |
| UN Number | 3077 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 124-04-9
- EC Number
- 204-673-3
- Mol. Weight
- 146.14
- HS Code
- 29171210
- Category
- Sweeteners & Food Additives