| Molecular Formula | C8H6Cl4 |
| Molar Mass | 243.95 |
| Density | 1.6545 (estimate) |
| Melting Point | 228°C |
| Boling Point | 272.29°C (estimate) |
| Refractive Index | 1.5149 (estimate) |
| Physical and Chemical Properties | Chemical properties white needle-like crystals. Melting point 277 ℃ (sublimation). Soluble in hot ethanol, ether, benzene and carbon tetrachloride, slightly soluble in cold ethanol. |
| Use | Use as a pesticide intermediate. |
| Downstream Products | Tetrachlorophthalimide 3,4,5,6-Tetrachlorophthalonitrile |
| EPA chemical information | Benzene, 1,2,3,4-tetrachloro-5,6-dimethyl- (877-08-7) |
It is obtained by chlorination of o-xylene through benzene ring. Add o-xylene and carbon tetrachloride to a glass-lined reaction pot, add cooked iron wire as a catalyst, start to introduce chlorine at room temperature and micro negative pressure, control the temperature below 40 ℃, take out the cooked iron wire after 1h, continue to pass chlorine, and maintain the temperature at about 70 ℃ to react to the end point, which takes about 17h.