Maleic Acid
- CAS
- 110-16-7
- EC
- 203-742-5
- Sectors
- Coatings, Adhesives, Sealants & Elastomers, Water & Wastewater Treatment, Pharma & Healthcare
Maleic Acid (CAS 110-16-7) is a white crystalline dicarboxylic acid offered as a powder or solid with a faint, acid-like odor, soluble in water and polar solvents, and used as an intermediate for resins and coatings and as a co-monomer in polymerization processes.
Typical Properties
| Molecular formula | C4H4O4 |
|---|---|
| Molecular weight | 116.07 g/mol |
| Appearance | Maleic acid is a white crystalline solid. Faint, acid like odor. |
| Form | Powder/Solid |
| Color | White |
| Odor | Faint odor |
| Melting point | 131 °C |
| Boiling point | 138 °C |
| Density | 1.590 g/cm³ @ Temp: 20 °C |
| Water solubility | 790 g/L (25 °C) |
| Flash point | 127 °C |
| pH | 1.3 (100g/l, H2O, 20°C) |
| GHS signal word | Warning · Corrosive, Irritant / harmful, Health hazard |
| HS code | 29171900 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Maleic Acid
Applications
Used in pharmaceuticals, adhesives, and water treatment chemicals. It acts as a pH adjuster, buffering agent, and co-monomer in polymerization processes.
Safety & Risks
Mildly corrosive; avoid inhalation and direct contact with skin or eyes.
Packaging
Supplied in 25 kg paper bags or fiber drums. Store in a cool, dry, and ventilated environment.