Acetone

Acetone (CH3-CO-SN3) - dimethylketone; the simplest of ketones (see). The liquid with a characteristic smell, temperature boiling - 56,2 C. Acetone flammable, poisonous; used as a solvent in the manufacture of varnishes and paints (nitrovarnishes, microcrack), of artificial fibers (acetate silk), smokeless powder, chloroform, iodoform, and so on, Acetone, together with other acetone bodies appears in the urine metabolic disorders, diabetes (see Acetonuria). For detection of acetone to the investigated solution add or Lugol solution and alkali - precipitation (sample of Lieben), or solution of sodium nitroprusside and then alkali - appears red staining (sample of Legale). Symptoms of poisoning with acetone and first aid - see Poisoning.

Acetone (formula CH3of PINES3) - dimethylketone. Colourless liquid, temperature PL 95,35 C; temperature instrumentation 56,24 degrees; d20=0,7908. Mixs up with water and organic solvents. A. is widely used as a solvent for paints, films, nitro - cellulose acetate, and other low toxicity is also used as a solvent in the food and pharmaceutical industries, is the raw material for synthesis of chloroform, iodoform, some sleeping pills such as sulfonal and chloretone. A. appears in the blood and urine of patients with diabetes (see acetone anaemia, Acetonuria). Acetone acts like a drug. Cases of chronic poisoning related to its slow elimination from the body. Qualitative reaction on A.: sample Lange - purple-purple ring when laying-up of concentrated solution of ammonia in the urine or other liquid containing A. and acidified with acetic acid in the presence of sodium nitroprusside (determined also acetoacetic acid); sample of Legale - red color with sodium nitroprusside in alkaline medium, does not disappear when the acidification acetic acid; trial of Lieben - education of iodoform when adding a solution of iodine in iodine potassium for liquids containing acetone in an alkaline environment.
Cm. also Acetone body.