molecular weight of 92.13. A colorless and transparent liquid, irritating odor, relative density (20 ° C / 4 ° C) 0.866. Solidification point -95 ° C, the boiling point of 110.8 ° C, flash point (say) 7.2 ° C, 552 ° C and ignited, 1.4961 refractive index, viscosity (20 ° C) 0.5866mPa s, surface tension (20 ° C) 28,53 x 10^-3_N/m, solubility parameter δ = 8.9. With alcohol, ether, benzene, acetone, carbon disulfide, gasoline immiscible solvent. Do not dissolve in water. A generation and accumulation of electrostatic hazards. Flammable vapor with air to form an explosive mixture, an explosion limits. 27% -7.0% (vol). Toxic. The skin and mucous membrane irritation, the role of the nervous system stronger than benzene. Long-term exposure has caused bladder cancer may properly. But toluene can be oxidized into benzoic acid, glycine and the formation of uric acid Ma, the emission from urine, so they do not have blood poisoning. Air maximum allowable concentration of 100mg/m³ (or 0.02%).
excellent solubility of toluene, adhesive application is the most widely solvents, epoxy resins may also be used as diluent.
Store in a cool, ventilated the Treasury, away from fire and heat sources. The temperature not exceeding 30 ° C, to prevent the direct sunlight.
toluene according to the source and method of toluene into petroleum coke and toluene. Oil toluene from petroleum distillates, as I hydrorefining catalyst restructuring and separation from : Coking toluene by-product coking Crude After washing, fractionation proceeds. The difference between the two is Petrotoluene than tar odor small toluene.