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nature : CH3CH2OH commonly known as alcohol. Colorless transparent volatile and flammable liquid. The smell of wine and stimulate the bitter taste. Density 0.7893. -117.3 ° C melting point. Boiling Point 78.4 ° C Dissolved in water, methanol, ether and chloroform. There hygroscopicity. Azeotropic with water to form the mixture. Ordinary alcohol, ethanol containing 95.57% (to the quality of dollars), 78.10 ° C distillate. Many can be dissolved organic compounds and some inorganic compounds. Can combustion. Ethanol steam mixed with the air can form explosive mixtures, the explosion limit from 3.5% to 18.0% (volume). Use a wide, is an important solvent, and the system used to dye, paint, drugs, synthetic rubber, detergents, etc.. The main method are : (1) Sugar quality raw materials (such as molasses, sulfite waste liquor, etc.) and starch materials (such as sweet potato, maize, sorghum, etc.) fermentation; (2) directly or indirectly, ethylene hydration.
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