Diacetone alcohol ; DAA

 Diacetone alcohol ; DAA

DIACETONE ALCOHOL - DAA-195kg-TaiWan

DIACETONE ALCOHOL – DAA-195kg-TaiWan

Diacetone alcohol; DAA is a chemical compound with the formula CH3C(O)CH2C(OH)(CH3)2. This liquid is a common synthetic intermediate used for the preparation of other compounds.

It is a natural ingredient of Sleepy grass (Achnatherum robustum).

Synthesis

First identified by Heintz, its preparation entails the Ba(OH)2-catalyzed condensation of two molecules of acetone. It undergoes dehydration to give the α,β-unsaturated ketone, mesityl oxide:[3] Hydrogenation of mesityl oxide gives the industrial solvent, methyl isobutyl ketone (“MIBK”).

Uses

It is used in cellulose ester lacquers, particularly of the brushing type, where it produces brilliant gloss and hard film and where its lack of odor is desirable. It is used in lacquer thinners, dopes, wood stains, wood preservatives and printing pastes; in coating compositions for paper and textiles; permanent markers;[4] in making artificial silk and leather; in imitation gold leaf; in celluloid cements; as a preservative for animal tissue; in metal cleaning compounds; in the manufacture of photographic film; and in hydraulic brake fluids, where it is usually mixed with an equal volume of castor oil.

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