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Caprolactam

Caprolactam

IUPAC name	Azepan-2-one
Other names	ε-Caprolactam, 1-Aza-2-cycloheptanone, 2-Azacycloheptanone, Capron PK4, Cyclohexanone iso-oxime, Extrom 6N, Hexahydro-2-azepinone, Hexahydro-2H-azepin-2-one (9CI), Hexanolactame
Identifiers
CAS number	105-60-2
EINECS number	203-313-2
SMILES	C1CC(NCCC1)=O
Properties
Molecular formula	C₆H₁₁NO
Molar mass	113,16 g/mol
Density	1,01 g/cm³
Melting point	68 °C
Boiling point	136-138 °C
Solubility in water	4560 g/l
Hazards
R-phrases	R20, R22, R36/37/38
Flash point	125 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Caprolactam is an organic compound which is a cyclic amide (or lactam).

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The primary industrial use of caprolactam is as a monomer in the production of nylon-6. Most of the caprolactam is synthesised from cyclohexane via an oximation process using hydroxylammonium_sulfate followed by catalytic rearrangement using the Beckmann rearrangement process step.

Major worldwide producers include : BASF, Honeywell, DSM (Dutch State Mines),Bayer, Toray and Sumitomo/Enichem.

Caprolactam is an irritant and is toxic by ingestion, inhalation, or absorption through the skin.

Category: IARC Group 4 carcinogens