structured to CH₃OH, molecular weight 32.04. Clarification colorless volatile liquid, relative density (20 ° C / 4 ° C) 0.7914, the solidification point -97.49 ° C, the boiling point of 64.5 ° C Flash point (say) 16 ° C and 470 ° C and ignited, a refractive index. 3285, surface tension 22.55 × 10^-3_N/m, vapor pressure (20 C) 12.265kPa, steam 1.11 relative density, viscosity (20 ° C) 0.5945mPa s, solubility parameter δ = 14.8, with water, ethanol, ethyl ether, acetone, benzene, chloroform immiscible organic solvent, methanol pair of gold Brass is particularly a slight corrosion. Flammable, a combustion produces on the blue flame. Steam with the formation of explosive mixtures air. Explosion limits of 6.0% -36.5% (vol). Pure ethanol taste somewhat crude pungent smells bad. Toxic directly against the body tissue. Particularly against the visual neural retina, causing blindness. A normal drinking four 10g a pure A drunk could cause serious poisoning. Drink 7 - 8g can lead to blindness, drinking 30-100g will die. A fermentation air vapor 5mg/m³ maximum allowable concentration.