Products Description
Adipic acid is a crystalline powder that is nearly odorless. It shows the mildest acidity among common food-grade acids and provides strong buffering performaleic-anhydride.html">mance within pH 2.5 to 3.0. Similar to succinic acid and fumaric acid, it barely absorbs moisture from air. When added to food products, it brings a mild and refreshing tart taste. In grape-flavored items, it delivers a long-lasting complementary flavor and helps gelatin-containing food powders form ideal textures.
Chemical Properties
| Item | Value |
| Melting point | 151-154 °C(lit.) |
| Boiling point | 265 °C at 100 mm Hg(lit.) |
| bulk density | 700 kg/m3 |
| density | 1.36 g/cm3 |
| vapor density | 5 (vs air) |
| vapor pressure | 1 mm Hg at 159.5 °C |
| refractive index | 1.4880 |
| FEMA | 2011 ADIPIC ACID |
| Fp | 385 °F |
| storage temp. | Store below +30°C. |
| solubility | methanol: 0.1 g/mL, clear, colorless |
| pka | 4.43 at 25℃ |
| form | Solid |
| color | White |
| Odor | white monoclinic prisms, practically odorless |
| PH | 3.74 (1 mM solution); 3.22 (10 mM solution); 2.71 (100 mM solution) |
| biological source | synthetic |
| Water Solubility | 1.44 g/100 mL at 15 ºC |
| Merck | 14,162 |
| JECFA Number | 623 |
| BRN | 1209788 |
| Dielectric constant | 1.8 at ambient temperature |
| Exposure limits | ACGIH: TWA 5 mg/m3 |
| Stability: | Stable. Incompatible with ammonia and strong oxidizing agents. |
| Cosmetics Ingredients Functions | FRAGRANCE BUFFERING |
| InChIKey | WNLRTRBMVRJNCN-UHFFFAOYSA-N |
| LogP | 0.09 at 25℃ |
| CAS DataBase Reference | 124-04-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Hexanedioic acid(124-04-9) |
| EPA Substance Registry System | Adipic acid (124-04-9) |
Safety Information
| Item | Value |
| Hazard Codes | Xi |
| Risk Statements | 36-41 |
| Safety Statements | 26-39-24/25 |
| RIDADR | UN3077 |
| WGK Germany | 1 |
| RTECS | AU8400000 |
| Autoignition Temperature | 788 °F |
| TSCA | Yes |
| HazardClass | 9 |
| HS Code | 29171210 |
| Hazardous Substances Data | 124-04-9(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 5700 mg/kg; LD50 dermal in Rabbit > 7940 mg/kg |
Product Application
Adipic acid serves as an acidulant and flavor regulator. It is stable, non-hygroscopic and slightly soluble in water, with a solubility of about 1.9 g/100 mL at 20°C. At a 0.6% concentration, it reaches pH 2.86 at 25°C. It is used in powdered drinks, beverages, gelatin desserts, lozenges and canned vegetables. It also acts as a leavening acid in baking powder. It can be used as a buffer to maintain pH between 2.5 and 3.0. In some cases, it is added to edible oils to prevent oxidation and rancidity.
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
