Explanatory notes
… pyroligneous acid), but is mainly obtained by synthesis. Colourless liquid with an agreeable ether‑like odour. Used … (2) Butanone (methyl ethyl ketone) (CH 3 COC 2 H 5 ). Colourless liquid found in the by‑products of the … cellulose nitrate, gums and resins. (4) Mesityl oxide . Colourless liquid formed by the condensation of two acetone …