Cyclohexanol

• Cyclohexyl
• Anol
• Hydralin
• Sextol
• Adronal

Colorless, crystalline powder with a camphor-like odor

Fixed

0.95 g · cm -3

24 ° C

161 ° C

1.2 hPa (20 ° C)

Moderately in water: 56.7 g · l-1 (20 ° C)

Attention

50 ml · m-3, 210 mg · m-3

Template: Infobox chemical / molecular formula search available

Cyclohexanol is a secondary alcohol derived from cyclohexane. It has the molecular formula C6H12O.

Production and representation

Precipitated together with cyclohexanone to cyclohexanol in the catalytic oxidation of cyclohexane with air oxygen. These radical reaction proceeds via a transient intermediate, which Cyclohexanhydroperoxid which decomposes spontaneously to the two products. The product mixture can be separated by distillation.

Alternatively, cyclohexanol can be obtained by catalytic hydrogenation of phenol.

Properties

Cyclohexanol melts at 24 ° C and boils at 161 ° C. Cyclohexanol dissolves well in ethanol. In water, dissolve at 20 ° C. 56.7 g of cyclohexanol per liter. The colorless crystals smell camphor. The flash point is 68 ° C, the ignition temperature at 290 ° C. With a density of 0.95 g/cm3, it is lighter than water. Cyclohexanol is slightly viscous at room temperature, but usually frozen.

Reactions

Cyclohexanol reacts with elemental chlorine in sunlight to Tetrachlorcyclohexanon. This can be reacted with aluminum isopropylate to Tetrachlorcyclohexanol, an example of the Meerwein - Ponndorf -Verley reduction. By heating 2,6- dichlorophenol is obtained.

Use

Extraction and solvent for paints and plastics, intermediate for chemical synthesis, standard reference substance in gas chromatography. Until the 1980s, used as evaporator liquid for heat cost allocators.

Safety

Cyclohexanol is harmful and hazardous for water.