CHLOROPRENE 0133
March 1998
2-Chloro-1,3-butadiene
CAS No: 126-99-8
2-Chlorobutadiene
RTECS No: EI9625000
beta-Chloroprene
UN No: 1991 (inhibited)
C4H5Cl / CH2=CClCH=CH2
EC No: 602-036-00-8
Molecular mass: 88.5
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Highly flammable. Many reactions NO open flames, NO sparks, and Powder, water spray, foam, carbon
FIRE
may cause fire or explosion. Gives NO smoking. dioxide.
off irritating or toxic fumes (or
gases) in a fire.
Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc.,
EXPLOSION
explosion-proof electrical equipment cool by spraying with water.
and lighting. Prevent build-up of
electrostatic charges (e.g., by
grounding). Use non-sparking
handtools.
EXPOSURE PREVENT GENERATION OF IN ALL CASES CONSULT A
MISTS! STRICT HYGIENE! AVOID DOCTOR!
EXPOSURE OF (PREGNANT)
WOMEN!
Cough. Dizziness. Drowsiness. Ventilation, local exhaust, or Fresh air, rest. Refer for medical
Inhalation
Headache. Sore throat. breathing protection. attention.
Unconsciousness. Chest pain.
MAY BE ABSORBED! Redness. Protective gloves. Protective Remove contaminated clothes.
Skin
Pain. clothing. Rinse and then wash skin with water
and soap. Refer for medical
attention.
Redness. Pain. Corneal damage. Safety goggles, face shield, or eye First rinse with plenty of water for
Eyes
protection in combination with several minutes (remove contact
breathing protection. lenses if easily possible), then take
to a doctor.
Nausea. (See Inhalation). Do not eat, drink, or smoke during Rinse mouth. Refer for medical
Ingestion
work. attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! F Symbol Airtight. Unbreakable packaging; put
Ventilation. Collect leaking and spilled liquid in T Symbol breakable packaging into closed
sealable containers as far as possible. Absorb R: 45-11-20/22-36/37/38-48/20 unbreakable container. Do not
remaining liquid in sand or inert absorbent and S: 53-45 transport with food and feedstuffs.
remove to safe place. Do NOT wash away into Note: D, E Marine pollutant.
sewer. Personal protection: complete protective UN Hazard Class: 3
clothing including self-contained breathing UN Subsidiary Risks: 6.1
apparatus. UN Pack Group: I
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1991 Fireproof. Provision to contain effluent from fire extinguishing. Separated
NFPA Code: H2; F3; R0 from food and feedstuffs, and incompatible materials. See Chemical
Dangers. Cool. Keep in the dark. Well closed. Store only if stabilized.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2004
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0133 CHLOROPRENE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH PUNGENT ODOUR. The substance can be absorbed into the body by inhalation of
its vapour, through the skin and by ingestion.
Physical dangers
Inhalation risk
The vapour is heavier than air and may travel along the ground;
distant ignition possible. As a result of flow, agitation, etc., A harmful contamination of the air can be reached very quickly
electrostatic charges can be generated. on evaporation of this substance at 20/C.
Chemical dangers Effects of short-term exposure
The substance can under specific circumstances readily form The substance is irritating to the eyes, the skin and the
peroxides, initiating explosive polymerization. The substance respiratory tract. The substance may cause effects on the
may polymerize on standing with fire or explosion hazard. On central nervous system, kidneys and liver. Exposure far above
combustion, forms toxic and corrosive gases including phosgene OEL may result in death. Medical observation is indicated.
and hydrogen chloride (see ICSC 0007 and ICSC 0163). Reacts
with oxidants, alkali metals and some powdered metals causing Effects of long-term or repeated exposure
fire and explosion hazard. Repeated or prolonged contact with skin may cause dermatitis.
Chronic exposure may cause alopecia. This substance is
Occupational exposure limits possibly carcinogenic to humans.
TLV: 10 ppm as TWA; (skin); (ACGIH 2004).
MAK: H; Carcinogen category: 2; (DFG 2004).
PHYSICAL PROPERTIES
Boiling point: 59.4/C Relative vapour density (air = 1): 3.0
Melting point: -130/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.57
Relative density (water = 1): 0.96 Flash point: -20/C o.c.
Solubility in water, g/100 ml at 20/C: 0.026 Explosive limits, vol% in air: 4-20
Vapour pressure, kPa at 20/C: 23.2 Octanol/water partition coefficient as log Pow: 2.1
ENVIRONMENTAL DATA
This substance may be hazardous to the environment; special attention should be given to water. It is strongly advised not to let the
chemical enter into the environment because it persists in the environment.
NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT use in the vicinity of a fire or a hot surface, or during welding.
Check for peroxides prior to distillation; eliminate if found.
Inhibitors such as hydroquinone or phenothiazine are generally added when it is to be stored.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency
Response.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2004
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