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NIOSH

CAPROLACTAM

ICSC: 0118

Hexahydro-2H-azepin-2-one
Aminocaproic lactam
epsilon-Caprolactam
C6H11NO
Molecular mass: 113.2
ICSC # 0118 		CAS # 105-60-2
RTECS # CM3675000
EC # 613-069-00-2
April 22, 1994 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Foam, powder, carbon dioxide, water in large amounts .
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

•INHALATION Abdominal cramps. Confusion. Cough. Dizziness. Headache.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN Dry skin. Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness. Pain.
Face shield or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Abdominal pain. Diarrhoea. Nausea. Vomiting. (Further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Let solidify if molten. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Personal protection: P2 filter respirator for harmful particles.
Separated from strong oxidants. Dry.

Xn symbol
R: 20/22-36/37/38
S: (2)
ICSC: 0118 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

CAPROLACTAM

ICSC: 0118

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
WHITE, HYGROSCOPIC FLAKES OR CRYSTALS.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic fumes including nitrogen oxides , ammonia . Reacts violently with strong oxidants producing toxic fumes.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 mg/m3 as TWA; A5 (not suspected as a human carcinogen); (ACGIH 2004).
MAK: (Inhalable fraction) 5 mg/m3;
Peak limitation category: I(2); Pregnancy risk group: C;
(DFG 2004).
OSHA PEL†: none
NIOSH REL: Dust: TWA 1 mg/m3 ST 3 mg/m3 Vapor: TWA 0.22 ppm (1 mg/m3) ST 0.66 ppm (3 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour or dust.

INHALATION RISK:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C ; on spraying or dispersing, however, much faster.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the skin . The vapour is irritating to the eyes and the respiratory tract . Inhalation of the vapour may cause effects on the central nervous system.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the nervous system liver .

PHYSICAL
PROPERTIES

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

ENVIRONMENTAL
DATA

This substance may be hazardous to the environment; special attention should be given to aquatic organisms.

N O T E S

The substance is usually used, stored and transported in liquefied form at about 80°C. Card has been partly updated in April 2005. See section Occupational Exposure Limits.
NFPA Code: H 1; F 1; R 0;

ADDITIONAL INFORMATION



ICSC: 0118 CAPROLACTAM
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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