ACETONE, Propanone or Dimethyl Ketone
Acetone, also known as propanone or dimethyl ketone, is an organic compound with the formula (CH3)2CO. It is a colourless, highly volatile and flammable liquid with a characteristic pungent, sweet odour. It is widely used as a solvent. It is not harmful to health. Its closed formula is C3H6O. Its boiling point is 56 °C.
Acetone is miscible with water, ethanol and ether in all proportions. It is produced by dry distillation of wood, heating of calcium acetate, dehydrogenation of isopropyl alcohol from copper catalysts at 250 °C, and Fe2O3 catalyzed mixture of ethanol and water vapor at 250 °C in gas phase. If acetone and sodium nitrosyl prussiate are mixed in basic medium, a red precipitate occurs and acetone is detected. An important reaction is the formation of iodoform with iodine in a basic environment. Acetone is used for removing nail polish. It is used as a solvent for oil, rubber and other substances. It is also used as a precursor in the production of products such as dye, isoprene, chloroform, bromoform and iodoform. It is also found in cigarettes. Its most common use in cosmetics is as a nail polish remover. It is used as a solvent for chemicals such as oil, rubber, resin, cellulose nitrate. It is used as a precursor in the production of products such as dye, isoprene, chloroform, bromoform and iodoform.
Acetone is produced mainly for use as a solvent and as the precursor of methyl methacrylate production in the world. The second main area of use is the synthesis of Bisphenol A, which is the main component of chemicals such as polyurethane and epoxy resin.
It is a good hygiene agent as a cleaning material. It is also used as a thinner in the paint industry.
|GHS hazard statements||H225, H319, H336|
|GHS precautionary statements||P210, P261, P305 351 338|
|Molar kütle||58.08 g mol-1|
|Smell||Sharp, iritating, flower|
|Density||0.791 g cm-3|
|Melting point||-95 - 93 ° C, 178-180 K, -139 - 136 ° C|
|Boiling point||56-57 ° C, K 329-330, 133-134 ° C|
|Vapor pressure||24,46-24,60 kPa (at 20 °C)|
|Refractive index (nD)||1.35900|
|Molecular shape||C2 Dihedral|
|Dipole moment||2.91 D|
|Specific heat capacity, C||125.45 J K-1|
|Flash point||-17 ° C|
|Auto ignition temperature||465 ° C|
|Explosive limits||% 13,2-57,0|
|Threshold Limit Value||1185 mg/m3 (TWA), 2375 mg/m3 (STEL)|