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Allyl Alcohol

1911 Encyclopedia Britannica

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C 3 H 5 OH or CH 2 :CH�CH 2 OH, a compound which occurs in very small quantities in wood spirit. It may be prepared from ally! iodide by the action of moist silver oxide; by the reduction of acrolein; or by heating glycerin with oxalic acid and a little ammonium chloride to 260° C. In this last reaction glycerol monoformin is produced as an intermediate product, but is decomposed as the temperature rises: C3H5(OH)3+H2C204 = C3H5(OH),.0.CHO+C02+H20 glycerol monoformin C 3 H 5 (OH) 2.0. CHO =C3H50H+C02+H20 It is a colourless mobile liquid of pungent smell, boiling at 97° C. Being an unsaturated compound it combines readily with the halogens. Oxidation by strong oxidizing agents converts it successively into its aldehyde, acrolein, and into acrylic acid. By gentle oxidation with potassium permanganate it may be converted into glycerin.