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Caprolactam CAS#105-60-2
CAS Number: 105-60-2
Chemical Formula: C6H11NO
Synonyms:
EPSILUM-CAPROLACTAM;EPSILON-CAP
HEXAHYDRO-2H-AZEPIN-2-ONE
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: White Crystals or Flakes
Caprolactam CAS#105-60-2
Caprolactam, CH2CH2CH2CH2CH2NHCO, is a solid material composed of white flakes. Caprolactam is soluble in water and has a specific gravity (in a 70% solution)of 1.05, which is heavier than water. It may also be encountered as a molten material. Caprolactam is toxic by inhalation, with a TLV of (vapor) 5 ppm in air and (dust) 1 mg/m3 of air. The primary uses are in the manufacture of synthetic fibers, plastics, film, coatings, and polyurethanes.
| Caprolactam Chemical Properties |
| Melting point | 68-71 °C(lit.) |
| Boiling point | 136-138 °C10 mm Hg(lit.) |
| bulk density | 500-550kg/m3 |
| density | 1.01 |
| 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 |
| pka | 16.61±0.20(Predicted) |
| form | Crystals or Flakes |
| 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 |
| Exposure limits | ACGIH: TWA 5 mg/m3 NIOSH: TWA 1 mg/m3; TWA 0.22 ppm; STEL 3 mg/m3; STEL 0.66 ppm |
| Dielectric constant | 1.7 - 1.9（0.0℃） |
| 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 |
| Hazard Codes | Xn |
| Risk Statements | 20/22-36/37/38 |
| Safety Statements | 2-24/25 |
| OEB | C |
| OEL | TWA: 1 mg/m3, STEL: 3 mg/m3 |
| RIDADR | UN 2811 6.1/PG 2 |
| 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 Caprolactam CAS#105-60-2
ε-Caprolactam is used as a monomer in the preparation of synthetic fibers of the polyamide as well as a solvent for high molecular weight polymers. It is also used in coatings and plasticizers. Further, it is used as a cross linking agent for polyurethanes. In addition to this, it is used to prepare nylon-6, which finds application in fibers and plastics.
Monomer for manufacture of polycaprolactam (Nylon 6) used in carpets, textiles, clothing, and tires.
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