CAPROLACTAM C6H11ON
Caprolactam is made by synthesis using benzene.
Application:
Caprolactam is used in the manufacture of synthetic fibers, polyamide resins and engineering plastics.
Caprolactam is produced in crystalline (solid flakes) and liquid (molten) form.
Technical Requirements
| Parameter |
Standards |
| Top grade |
1st Grade |
2nd Grade |
| Permanganate index, max. |
4 |
5 |
7 |
| Permanganate No., Sec., min. |
- |
- |
10,000 |
| Colour of 50 % caprolactam water solution, deg. Hazen, max. |
3.0 |
4.0 |
5.0 |
| Volatile bases content, mmol/kg, max. |
0.4 |
0.5 |
0.6 |
| Iron content, by weight, %, max. |
0.00002 |
0.00002 |
0.00002 |
| Solidification point, oC , min. |
68.8 |
68.8 |
68.8 |
| Cyclohexanonoxime content, by weight, %, max. |
0.002 |
0.002 |
0.002 |
| Optical density of 50% caprolactam solution, max. |
0.04 |
0.05 |
0.06 |
| Acidity, mmol/kg , max. |
0.05 |
0.05 |
0.1 |
| Alkalinity, mmol/kg, max. |
0.1 |
0.1 |
0.05 |
| pH of 20% water solution |
6.7-7.3 |
6.7-7.3 |
6.7-7.3 |
Packing
Crystalline caprolactam is packed in 25 kg PE and paper bags.
Liquid caprolactam is delivered in 40 t and 50 t rail tank cars.
Storage
The flaked caprolactam is stored in closed rooms. Liquid caprolactam is kept in tanks under a N 2 atmosphere.
Transportation
Crystalline caprolactam: covered rail cars, high capacity containers or covered road trucks. Caprolactam is transported in a liquid state in thermally insulated heatable rail tank cars.
Storage life: Crystalline caprolactam: 2 months, liquid caprolactam: 15 days
| 
