🧴 Product Name:
Maleic Anhydride
🔬 Scientific Name:
Maleic anhydride
🏷️ Trade Names:
MA, Maleic anhydride, 2-Butenedioic anhydride, C₄H₂O₃
⚛️ Chemical Formula:
C₄H₂O₃
🧾 CAS Number:
108-31-6
📦 HS Code:
2917.14
📘 Description:
Maleic anhydride is a white crystalline solid with a pungent odor. It is widely used in the manufacture of unsaturated polyester resins, lubricants, agricultural chemicals, and fuel additives. It hydrolyzes readily in water to form maleic acid.
⚗️ Physical & Chemical Properties:
| Property | Value |
| Physical State | White crystalline solid |
| Odor | Pungent and irritating |
| Density | 1.48 g/cm³ |
| Melting Point | 52.8 °C |
| Boiling Point | 202 °C |
| Solubility in Water | Soluble (converts to maleic acid) |
| Vapor Pressure | 0.2 mmHg at 25 °C |
🧪 Production Process:
Produced mainly by oxidation of benzene or normal butane using vanadium-based catalysts.
🧯 Safety & Handling:
- Hazards: Irritating to skin, eyes, and respiratory tract
- Precautions: Use PPE including gloves and masks, ensure proper ventilation
- Packaging: Multi-layer bags or steel drums
- Transport: UN No. 2215 | Hazard Class: 8 (Corrosive)
📊 Grades & Applications:
| Grade Type | Purity | Applications |
| Industrial | ≥ 99% | Unsaturated polyester resins, adhesives, plasticizers |
| Chemical | ≥ 99.5% | Fine chemical synthesis, fuel additives |
| Agricultural | ≥ 98.5% | Pesticides, plant growth regulators |
🌍 Exporting Countries:
China, USA, Taiwan, Netherlands, South Korea
🌎 Importing Countries:
India, Turkey, Iran, Brazil, Thailand
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