Product Details
maleic-anhydride-cas-108-31-6.html">Maleic anhydride is the cyclic anhydride derived from maleic acid. It features excellent chemical activity due to its special molecular structure.
- Melting Point: 52.8 °C
- Boiling Point: 202 °C
- Relative Density: 1.480 (20 °C)
- Solubility: Soluble in acetone, ethanol, ether, benzene and other common organic solvents; undergoes hydrolysis when exposed to water to form maleic acid
- Volatility: Moderately volatile at room temperature
- Stability: Stable under normal ambient conditions; incompatible with strong bases, strong oxidants, amines and alcohols, and prone to chemical reactions or polymerization
Maleic anhydride Chemical Properties
| Item | Value |
| Melting point | 51-56 °C lit. |
| Boiling point | 200 °C lit. |
| bulk density | 700-800kg/m3 |
| density | 1.48 |
| vapor density | 3.4 vs air |
| vapor pressure | 0.16 mm Hg 20 °C |
| refractive index | 1.4688 estimate |
| Fp | 218 °F |
| storage temp. | Store below +30°C. |
| solubility | Chloroform Slightly Ethyl Acetate Slightly |
| form | powder |
| pka | 0 at 20 ℃ |
| color | White |
| Odor | Mild acrid odor. |
| PH | 0.8 550g/l H2O 20℃ Hydrolysis |
| explosive limit | 1.4-7.1% V |
| Water Solubility | 79 g/100 mL 25 ºC |
| Sensitive | Moisture Sensitive |
| Merck | 14,5704 |
| BRN | 106909 |
| Henry's Law Constant | atm m3/mol Not applicable reacts with water |
| Exposure limits | NIOSH REL TWA 1 ppm 0.25 mg/m3 IDLH 10 ppm OSHA PEL TWA 0.25 ppm ACGIH TLV TWA 0.25 ppm with an intended change of 0.1 ppm. |
| Dielectric constant | 51.0 60℃ |
| Stability | Stable Combustible Incompatible with water strong oxidizing agents alkali metals strong bases amines most common metals polymerization catalysts and accelerators. |
| Cosmetics Ingredients Functions | FILM FORMING |
| InChI | 1S/C4H2O3/c5-3-1-2-4 6 7-3/h1-2H |
| InChIKey | FPYJFEHAWHCUMM-UHFFFAOYSA-N |
| SMILES | O=C1OC O C=C1 |
| LogP | -2.61 at 20℃ |
| CAS DataBase Reference | 108-31-6 CAS DataBase Reference |
| NIST Chemistry Reference | 2,5-Furandione 108-31-6 |
| EPA Substance Registry System | Maleic anhydride 108-31-6 |
Safety Information
| Item | Value |
| Hazard Codes | C |
| Risk Statements | 22-34-42/43 |
| Safety Statements | 22-26-36/37/39-45 |
| RIDADR | UN 2215 8 PG 3 |
| OEB | C |
| OEL | TWA 1 mg/m3 0.25 ppm |
| WGK Germany | 1 |
| RTECS | ON3675000 |
| F | 21 |
| Autoignition Temperature | 870 °F |
| TSCA | TSCA listed |
| HS Code | 2917 14 00 |
| HazardClass | 8 |
| PackingGroup | III |
| Storage Class | 6.1D Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects |
| Hazard Classifications | Acute Tox 4 Oral Eye Dam 1 Resp Sens 1 Skin Corr 1B Skin Sens 1A STOT RE 1 Inhalation |
| Hazardous Substances Data | 108-31-6 Hazardous Substances Data |
| Toxicity | LD50 orally in Rabbit 1090 mg/kg LD50 dermal Rabbit 2620 mg/kg |
| IDLA | 10 mg/m3 |
Product Application Of Maleic anhydride CAS#108-31-6
This compound possesses two highly active reactive sites in its molecular structure, which endows it with superior reactivity and versatile performance in organic synthesis and industrial production. It is widely recognized as a fundamental and high-value organic chemical raw material across multiple industries.
Main Applications
Organic Synthesis & Chemical Reactions
It is commonly used as a typical dienophile in Diels-Alder reactions, serving as a key intermediate for various fine chemical syntheses.
Agrochemical Industry
Applied in the production of a variety of agrochemical products, including maleic hydrazide, malathion and other pesticides and plant growth regulators.
Pharmaceutical & Dye Industry
Acts as an important intermediate for the synthesis of pharmaceutical compounds and dyestuff raw materials.
Resin & Polymer Industry
Widely adopted in the manufacturing of multiple resin products and participates in various copolymerization processes. It is an essential raw material for unsaturated polyester resins, alkyd resins, plasticizers, adhesives, coatings and polymer modifiers, greatly improving the mechanical strength, weather resistance and processing performance of finished polymer products.
Fast delivery time
Inventory 2-3 working days New production 7-10 working days
