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| Caprolactam | |
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| 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] |
| PubChem | |
| EINECS number | |
| SMILES |
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| Properties | |
| Molecular formula | C6H11NO |
| Molar mass | 113,16 g/mol |
| Density | 1,01 g/cm3 |
| Melting point |
68 °C |
| Boiling point |
136-138 °C / 10 mm Hg |
| 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 references |
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Caprolactam is an organic compound which is a lactam of 6-aminohexanoic acid (ε-aminohexanoic acid, aminocaproic acid). It can alternatively be considered cyclic amide of caproic acid.
The primary industrial use of caprolactam is as a monomer in the production of nylon-6. Most of the caprolactam is synthesised from cyclohexanone 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.
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- This page was last modified on 10 May 2008, at 13:16.
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