Information
Specification category:
Product No. | Product name | specifications |
1.19375.018 | o-Phthalic anhydride | AR500g |
Characteristic:
Appearance and properties: white needle crystal.
Relative density: 1.53
Relative vapor density: 5.10
Melting point(℃): 131.2
Boiling point(℃): 295
Concentration: Content: a ≥ 99.7%; two ≥ 99.2%.
Vapor Pressure: 0.13 (96.5 ℃)
Solubility: insoluble in water, soluble in hot water, alcohol, ether, benzene, most organic solvents.
Technical indicators:
Item | AR | CP |
Assay [CH(COO] | ≥99.7% | ≥99.0% |
Melting point(℃)℃ | 129~133(1℃) | 129~133(2℃) |
Residue on ignition(as SO4) | ≤0.025% | ≤0.05% |
Chloride(Cl) | ≤0.005% | ≤0.01% |
Sulfur compounds(as SO4) | ≤0.001% | ≤0.005% |
Heavy metals(as Pb) | ≤0.001% | ≤0.005% |
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Hazard characteristics:
IATA-DGR UN 2214 PHTHALIC ANHYDRIDE,8,III