Molecular Formula | C12H8O4 |
Molar Mass | 216.19 |
Density | 1.3023 (rough estimate) |
Melting Point | 270° |
Boling Point | 316.6°C (rough estimate) |
pKa | 2.25±0.10(Predicted) |
Refractive Index | 1.7080 (estimate) |
Physical and Chemical Properties | Brown-yellow needle-like crystals. Melting point 269-270(274 ℃). Soluble in ether, dilute lye and sulfuric acid, with yellow and blue fluorescence. Insoluble in water. |
Use | as an intermediate for dye pesticides. |
production method | with industrial tungsten as raw material, using cobalt as catalyst, through gas phase air oxidation to 1,8-naphthalene dicarboxylic anhydride, and then obtained by hydrolysis. |