Physical properties of Acetone : (i) It is a colourless liquid with characteristic pleasant odour.
(ii) It is inflammable liquid. It boils at 56o C.
(iii) It is highly miscible with water, alcohol and ether.
Chemical properties of Acetone
If acetone could be in excess in ketal condensation or catalyst (ZnCl2/ dry HCl) is used then three moles of acetone undergoes condensation polymerisation and form a compound called 'Phorone'.
Molecular mass of phorone = 3 mole of acetone - 2 mole of H2O
Reformatsky reaction: This reaction has the treatment of aldehyde and ketone with a bromo acid ester in presence of metallic zinc to form β-hydroxy ester, which can be easily dehydrated into α, β-unsaturated ester.
(a)
(b) Addition to carbonyl group
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