Alcohols contain the hydroxyl group(羟基) Methanol: 11 billion pounds were produced annually in USA. Mainly used as solvent and for the preparation of formaldehyde (+ p)and formic acid( pa). Ingesting only about 15ml will lead to blindness 30ml will lead to death Ethanol: produced by biological method(fermentation, RW)or chemical method The liquid produced by fermentation has an ethanol concentration no more than about 12 percent because at this concentration the yeast begin to die HH H phosphoric C=C acid H-C-C-O H HH Fig 12.11 ethanol can be synthesized from the unsaturated hydrocarbon ethene, with phosphoric acid as a catalystAlcohols contain the hydroxyl group (羟基) • Methanol: 11 billion pounds were produced annually in USA. Mainly used as solvent and for the preparation of formaldehyde (甲醛) and formic acid (甲酸). Ingesting only about 15ml will lead to blindness, 30ml will lead to death. • Ethanol: produced by biological method (fermentation, 发酵) or chemical method. • The liquid produced by fermentation has an ethanol concentration no more than about 12 percent because at this concentration the yeast begin to die. Fig 12.11 ethanol can be synthesized from the unsaturated hydrocarbon ethene, with phosphoric acid as a catalyst