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The preparation of salicylic acid from phenol Item Preview
at 195-22o° C, it decomposes, yielding phenol and carbon dioxide, but also giving phenyl salicylate, (salol). This drug, also prepared by the action at 125° C of phosphorus oxychloride or carbonyl chloride on a mixture of sodium phenoxide and salicylate, crystallises from alcohol in rhombic plates melting at 42° C and boiling at 172° C,/I2 mm. Acetylsalicylic acid (see ASPIRIN), prepared by the action of acetyl chloride on salicylic acid or its sodium salt, crystallises in colourless needles and melts at 132° C (with decomposition).

The following methods of preparing salicylic acid are of scien tific interest : (I) from phenol, sodium carbonate and carbonyl chloride; (2) by the action of sodium on phenol and ethyl chloro carbonate, Cl.0O2C2H5; (3) by the process of F. Tiemann and K. Reimer who heated together at 100° C phenol, carbon tetra chloride and alcoholic potash.
07/10/1979 · phenol [fe´nol] 1
The following methods of preparing salicylic acid are of scien tific interest : (I) from phenol, sodium carbonate and carbonyl chloride; (2) by the action of sodium on phenol and ethyl chloro carbonate, Cl.0O2C2H5; (3) by the process of F. Tiemann and K. Reimer who heated together at 100° C phenol, carbon tetra chloride and alcoholic potash.
Benzoic acid - New World Encyclopedia
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