Adipic acid , Melting point standard , 124-04-9
Synonym(s):
Adipic acid;ADI-PURE high purity adipic acid;ADI-PURE LGA adipic acid;Hexanedioic acid
CAS NO.：124-04-9
Empirical Formula: C6H10O4
Molecular Weight: 146.14
MDL number: MFCD00004420
EINECS: 204-673-3
| Pack Size | Price | Stock | Quantity |
| 2G | RMB455.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 151-154 °C(lit.) |
| Boiling point: | 265 °C100 mm Hg(lit.) |
| Density | 1,36 g/cm3 |
| vapor density | 5 (vs air) |
| vapor pressure | 1 mm Hg ( 159.5 °C) |
| refractive index | 1.4880 |
| FEMA | 2011 | ADIPIC ACID |
| Flash point: | 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 |
| PH | 3.74(1 mM solution);3.22(10 mM solution);2.71(100 mM solution); |
| Odor | wh. monoclinic prisms, pract. odorless |
| Water Solubility | 1.44 g/100 mL (15 ºC) |
| JECFA Number | 623 |
| Merck | 14,162 |
| BRN | 1209788 |
| Dielectric constant | 1.8（Ambient） |
| Exposure limits | ACGIH: TWA 5 mg/m3 |
| Stability: | Stable. Substances to be avoided include ammonia, strong oxidizing agents. |
| 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) |
Description and Uses
Adipic acid is a crystalline powder with practically no odor. It has the lowest acidity of any of the acids commonly used in foods and has excellent buffering capacity in the range of pH 2.5 to 3.0. Like succinic and fumaric acid, adipic acid is practically nonhygroscopic. Its addition to foods imparts a smooth, tart taste. In grape-flavored products, it adds a lingering supplementary flavor and gives an excellent set to food powders containing gelatin. As a result, adipic acid has found a wide number of uses as an accidulant in dry powdered food mixtures, especially in those products having delicate flavors and where addition of tang to the flavor is undesirable.
Its aqueous solutions have the lowest acidity of any of the common food acids. For concentrations from 0.5 to 2.4 g/100 mL, the pH of its solution varies less than half a unit. Hence, it can be used as a buffering agent to maintain acidities within the range of 2.5 to 3.0. This is highly desirable in certain foods, yet the pH is low enough to inhibit the browning of most fruits and other foodstuffs.
Adipic acid’s main use is in the production of 6,6 nylon. It is also used in resins, plasticizers, lubricants, polyurethanes, and food additives.
Safety
| Symbol(GHS) |  GHS05 |
| Signal word | Danger |
| Hazard statements | H318 |
| Precautionary statements | P280-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 36-41 |
| Safety Statements | 26-39-24/25 |
| WGK Germany | 1 |
| RTECS | AU8400000 |
| Autoignition Temperature | 788 °F |
| TSCA | Yes |
| HS Code | 29171210 |
| Hazardous Substances Data | 124-04-9(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 5700 mg/kg LD50 dermal Rabbit > 7940 mg/kg |
