| Test Item | Specification |
| Appearance | White powder or crystals |
| Purity | ≥98% |
| Itaconic Acid | ≤1.5% |
| Residues on ignition | ≤0.2% |
| Iron | ≤10PPM |
| Chlorides | ≤25PPM |
| Sulphates | ≤30PPM |
| Melting point | 67-69℃ |
| Solubility(in butyl acetate at 35℃) | Clean and transparent solution |
Storage and transportation:
Stable at normal temperature. Avoid heat, flames, sparks and other sources of ignition.
