Structure CH3CN. Molecular 41.05. A colorless and transparent liquid, ether odor. The relative density (20 ° C / 4 ° C) 1. 7822, the freezing point -43.8 ° C, the boiling point of 81.6 ° C, 5.6 ° C flashpoint. Refractive index of 1.3441. Viscosity (20 ° C) 0.35mPa s, surface tension (20 ° C) 1 9.10 × 10-3N/m, critical temperature of 274. 7 ° C, critical pressure 4.83MPa. With water, methanol, methyl acetate, ethyl acetate, C Tin ketone, ethyl ether, chloroform, carbon tetrachloride, vinyl chloride and various unsaturated hydrocarbon phase immiscibility. Water formed azeotropic mixture. Flammable and explosive limits of 3.0% -16% (vol). Toxic people LD503800mg/kg. Air 3mg/m3 maximum allowable concentration.
resin and rubber for the good solvent.
cool storage, ventilation and drying of the Treasury, away from fire and heat sources to prevent direct sunlight.
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