Chemical

Products

Cyclohexanone

Cas Number

108-94-1

Other Names

oxocyclohexane

pimelic ketone

ketohexamethylene

cyclohexyl ketone

ketocyclohexane

hexanon

Hydrol-O

Sextone

K

Anone

The formula

(CH2)5CO

Introduction

Cyclohexanone is the organic compound with the formula (CH2)5CO. The molecule consists of six-carbon cyclic molecule with a ketone functional group. This colorless oil has an odor reminiscent of that of acetone. Over time, samples of cyclohexanone assume a yellow color.

Physical and Chemical Properties
Physical state and appearance Liquid. (Oily liquid.)
Odor Odor reminiscent of of peppermint and acetone
Molecular Weight 98.15g/mole
Color Colorless
Boiling Point 155.6°C (312.1°F) @ 760 mm Hg
Critical Temperature 356°C (672.8°F)
Flash point 44 °C
Melting Point -31°C (-23.8°F)
Specific Gravity 0.9478 (Water = 1)
Vapor Pressure 0.7 kPa (@ 26.7°C)
Vapor Density 3.4 (Air = 1)
Odor Threshold 0.88 ppm
Water/Oil Dist. Coeff The product is more soluble in oil; log(oil/water) = 0.8
Dispersion Properties See solubility in water, diethyl ether, acetone
Solubility Soluble in diethyl ether, acetone. Partially soluble in cold water, hot water.
CYCLOHEXANONE content, wt% 99.8 min
Boiling range ˚C 153-156 ˚C
Water Content, Wt% 0.1 max
CYCLOHEXANONE wt% 0.1 max
Phenol Content, ppm 10 max
Applications

1. The great majority of cyclohexanone is consumed in the production of precursors to Nylon 6,6 and Nylon 6

2. About half of the world's supply is converted to adipic acid, one of two precursors for nylon 6,6

3. The other half of the cyclohexanone supply is converted to the oxime

4. In the presence of sulfuric acid catalyst, the oxime rearranges to caprolactam, a precursor to nylon 6