IPCS INCHEM Home
CAPROLACTAMICSC: 0118
Hexahydro-2H-azepin-2-one
Aminocaproic lactam
epsilon-Caprolactam
November 2009
CAS #: 105-60-2
EC Number: 203-313-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use foam, powder, carbon dioxide, water in large amounts.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Abdominal cramps. Dizziness. Headache. Confusion.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear face shield or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). Refer for medical attention. 
Ingestion Nausea. Vomiting. Abdominal pain. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Let solidify. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. 

According to UN GHS Criteria

excl mark;warn
WARNING
Harmful if swallowed
Causes skin irritation
Causes eye irritation
May cause drowsiness or dizziness 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants. Dry. 
PACKAGING
 
CAPROLACTAM ICSC: 0118
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE HYGROSCOPIC CRYSTALS OR FLAKES. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating. This produces toxic fumes including nitrogen oxides and ammonia. Reacts violently with strong oxidants. This produces toxic fumes. 

Formula: C6H11NO
Molecular mass: 113.2
Boiling point: 267°C
Melting point: 70°C
Relative density (water = 1): 1.02
Solubility in water: good
Vapour pressure, Pa at 25°C: 0.26
Relative vapour density (air = 1): 3.91
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0
Flash point: 125°C o.c.
Auto-ignition temperature: 375°C
Explosive limits, vol% in air: 1.4-8
Octanol/water partition coefficient as log Pow: -0.19  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol. 

Effects of short-term exposure
The substance is irritating to the skin, eyes and respiratory tract. The substance may cause effects on the central nervous system. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the nervous system and liver. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 mg/m3, as TWA; A5 (not suspected as a human carcinogen).
MAK: (inhalable fraction): 5 mg/m3; peak limitation category: I(2); pregnancy risk group: C.
EU-OEL: 10 mg/m3 as TWA; 40 mg/m3 as STEL 

ENVIRONMENT
This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
The substance is usually used, stored and transported in liquefied (molten) form at about 80°C. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 20/22-36/37/38; S: (2) 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations
       Caprolactam  (SIDS)
       Caprolactam (IARC Summary & Evaluation, Volume 71, 1999)