Name | epsilon-Caprolactam |
Synonyms | CPL EPSILON-CAP Caprolactam CAPROLACTAM azepan-2-one E-CAPROLACTAM ε-Caprolactam 6-hexanelactam 1,6-hexanolactam epsilum-Caprolactam EPSILON-CAPROLACTAM EPSILUM-CAPROLACTAM epsilon-Caprolactam perhydroazepin-2-one CYCLOHEXANONEISOOXIME 2-Oxohexamethylenimine 2-Oxohexamethyleneimine HEXAHYDRO-2H-AZEPIN-2-ONE Hexahydro-2H-azepine-2-one |
CAS | 105-60-2 |
EINECS | 203-313-2 |
InChI | InChI=1/C6H11NO/c8-6-4-2-1-3-5-7-6/h1-5H2,(H,7,8) |
Molecular Formula | C6H11NO |
Molar Mass | 113.16 |
Density | 1.01 |
Melting Point | 68-71°C(lit.) |
Boling Point | 136-138°C10mm Hg(lit.) |
Flash Point | 152 °C |
JECFA Number | 1594 |
Water Solubility | 4560 g/L (20 ºC) |
Solubility | H2O: 0.1g/mL, clear, colorless |
Vapor Presure | <0.01 mm Hg ( 20 °C) |
Appearance | White crystalline solid |
Specific Gravity | 1.042 (20/4℃) |
Color | White |
Exposure Limit | ACGIH: TWA 5 mg/m3NIOSH: TWA 1 mg/m3; TWA 0.22 ppm; STEL 3 mg/m3; STEL 0.66 ppm |
Merck | 14,1761 |
BRN | 106934 |
pKa | 16.61±0.20(Predicted) |
PH | 7.0-8.5 (333g/l, H2O, 20℃) |
Storage Condition | Store below +30°C. |
Explosive Limit | 1.4-8%(V) |
Refractive Index | 1.4935 |
Physical and Chemical Properties | White flakes or melts. |
Use | Mainly used for the preparation of caprolactam resin, fiber and artificial leather, also used as pharmaceutical raw materials |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/22 - Harmful by inhalation and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S2 - Keep out of the reach of children. S24/25 - Avoid contact with skin and eyes. |
UN IDs | UN 2811 6.1/PG 2 |
WGK Germany | 1 |
RTECS | CM3675000 |
TSCA | Yes |
HS Code | 29337100 |
Toxicity | LD50 orally in rats: 2.14 g/kg (Smyth) |
Raw Materials | sulfur dioxide Sulfuric acid Ammonia Cyclohexanone Hydrogen Ammonia |
Downstream Products | Hexamethyleneimine |
white flakes or melts. Soluble in water, solvent, petroleum hydrocarbons, cyclohexene, benzene, methanol, ethyl chloride, ether. Melting Point: 69~71 °c. Boiling point of 268.5 deg C (101. 3kPa). 70% relative density of aqueous solution 1.05. Refractive index 4935. The heat of fusion was 121.8J/g. The viscosity was 9mPa · s at 78 ℃ with the heat of evaporation of 487. 2J/G0. The vapor pressure was 100. 9Pa at 399 ℃ and 180. 3kPa at 268.5 ℃ and 6. 665kPa0 at 101 ℃
.This product is mainly used to prepare caprolactam resin, caprolactam fiber and artificial leather, etc., also used as medical raw materials.
This product is toxic. Long-term inhalation can cause chronic poisoning, such as neurasthenia, dizziness, Head Pain, nosebleeds and respiratory tract inflammation. Have a corrosive effect on the skin, to avoid direct contact. Mice inhaled LC50 450mg/m3. The maximum allowable concentration in air is 10 mg/m3. The production site should be forced ventilation. Operators should wear labor protection equipment.
The use of plastic bags, heat sealing seal, coat nylon woven bag or kraft paper bag, each 25kg. Storage in a dry and clean warehouse, fire, moisture, heat, sun protection. The shelf life was three months.