Products Description of epsilon-Caprolactam CAS # 105-60-2
Melting Point: 68–70 °C
Boiling Point: 262 °C
Relative Density: 1.013 g/cm³ (70 °C)
Flash Point: 125 °C (Closed Cup)
Solubility: Highly soluble in water. It is also miscible and soluble in chlorinated solvents, petroleum hydrocarbons, cyclohexene, benzene, methanol, ethanol and diethyl ether.
Chemical Characteristics: This product is hygroscopic and tends to absorb moisture from ambient air. It maintains good stability under normal storage conditions, while it will react with strong acids, strong bases and strong oxidizing agents, so contact with the above substances should be avoided.
Parameters
| Item | Value |
| Melting point | 68-71 °C(lit.) |
| Boiling point | 136-138 °C10 mm Hg(lit.) |
| density | 1.01 |
| bulk density | 500-550kg/m3 |
| vapor pressure | <0.01 mm Hg ( 20 °C) |
| refractive index | 1.4935 |
| FEMA | 4235 | 1,6-HEXALACTAM |
| Fp | 152 °C |
| storage temp. | Store below +30°C. |
| solubility | H2O: 0.1 g/mL, clear, colorless |
| form | Crystals or Flakes |
| pka | 16.61±0.20(Predicted) |
| Specific Gravity | 1.042 (20/4℃) |
| color | White |
| PH | 7.0-8.5 (333g/l, H2O, 20℃) |
| Odor | amine spicy |
| Odor Type | spicy |
| explosive limit | 1.4-8%(V) |
| Water Solubility | 4560 g/L (20 ºC) |
| Merck | 14,1761 |
| JECFA Number | 1594 |
| BRN | 106934 |
| Dielectric constant | 1.7 - 1.9（0.0℃） |
| Exposure limits | ACGIH: TWA 5 mg/m3; NIOSH: TWA 1 mg/m3; TWA 0.22 ppm; STEL 3 mg/m3; STEL 0.66 ppm |
| LogP | 0.12 at 25℃ |
| CAS DataBase Reference | 105-60-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Caprolactam(105-60-2) |
| IARC | 3 (Vol. 39, Sup 7, 71) 1999 |
| EPA Substance Registry System | Caprolactam (105-60-2) |
Safety Information
| Item | Value |
| Hazard Codes | Xn |
| Risk Statements | 20/22-36/37/38 |
| Safety Statements | 2-24/25 |
| RIDADR | UN 2811 6.1/PG 2 |
| OEB | C |
| OEL | TWA: 1 mg/m3, STEL: 3 mg/m3 |
| WGK Germany | 1 |
| RTECS | CM3675000 |
| Autoignition Temperature | 707 °F |
| TSCA | Yes |
| HS Code | 29337100 |
| Hazardous Substances Data | 105-60-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 2.14 g/kg (Smyth) |
Product Application of epsilon-Caprolactam CAS # 105-60-2
ε-Caprolactam is an important organic chemical raw material with wide industrial usage. Its core application is for the production of caprolactam resin, polyamide fiber (Nylon 6) and synthetic artificial leather.
Besides the above mainstream uses, it is also widely adopted as a key intermediate raw material in the pharmaceutical industry for the synthesis of various pharmaceutical products. Additionally, it can be used in the production of engineering plastics, packaging films, textile auxiliaries, coatings and other related chemical products.
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