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Molecular formula : C5H12O2 MW : 104.15 CAS No. :462-95-3
nature : to clarify colorless flammable liquid. -66.5 ° C melting point, boiling point of 89 ° C and relative density of 0.8319 (20 / 4 ° C), the refractive index of 1.3748 (18 ° C), the flash point of -5 ° C. Soluble acetone, benzene and water, easily soluble in alcohol, ether. Steam and air to form explosive mixtures.
preparation methods : a byproduct of the production of chloramphenicol. Right nitrobenzene ethanone dissolved in chlorobenzene, in the 26-28 ° C and stirring 71/92 bromine and brominated be right nitro - α - bromoacetophenone. Before adding Urotropine and added chlorobenzene, made of nitro - α - bromoacetophenone Urotropine salt solution. This salt solution by adding 27% hydrochloric acid solution, hours after chlorobenzene to add ethanol, salt hydrolysis reaction. Formaldehyde also be conducted with ethanol Aldol activity.
purposes : for the synthesis of p - formaldehyde resin, spices, is also used as a solvent and paint production.
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