Cyclohexanol is the organic compound with the formula (CH2)5CHOH. The molecule is related to cyclohexane ring by replacement of one hydrogen atom by a hydroxyl group. This compound exists as a deliquescent colorless solid with a camphor-like odor, which, when very pure, melts near room temperature. Billions of kilograms are produced annually, mainly as a precursor to nylon.

Production

Cyclohexanol is produced by the oxidation of cyclohexane in air, typically using cobalt catalysts:
C6H12 + 1/2 O2 → C6H11OH
This process co-forms cyclohexanone, and this mixture (“KA oil” for ketone-alcohol oil) is the main feedstock for the production of adipic acid. The oxidation involves radicals and the intermediacy of the hydroperoxide C6H11O2H. Alternatively, cyclohexanol can be produced by the hydrogenation of phenol:
C6H5OH + 3 H2 → C6H11OH
This process can also be adjusted to favor the formation of cyclohexanone.
Basic reactions
Cyclohexanol undergoes the main reactions expected for a secondary alcohol. Oxidation gives cyclohexanone, which is converted on a large scale in industry to the oxime, a precursor to caprolactam. As a laboratory exercise, this oxidation can be effected with chromic acid. Esterification affords the commercially useful derivatives dicyclohexyladipate and dicyclohexylphthalate, which are used as plasticizers. Heating in the presence of acid catalysts converts cyclohexanol to cyclohexene.
Structure
Cyclohexanol has at least two solid phases. One of them is a plastic crystal.
Applications

As indicated above, cyclohexanol is an important feedstock in the polymer industry, firstly as a precursor to nylons, but also to various plasticizers. Small amounts are used as a solvent.

Specifications:

Item

Specifications

Results

Appearance

Transparent liquid, no visible impurities

Transparent liquid, no visible impurities

Color (Hazen, Pt-Co)

≤10

10

Cyclohexanol mass fraction

≥99.0%

99.2%

Water mass fraction

≤0.1%

0.03%

Conclusion

The results conforms with Enterprise standards

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Notice: This product is only suitable for laboratory use, or the use of animals. It can not be used directly on the human body

 

 

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