Vinylstyrene
DVB
C10H10 / C6H4(CH=CH2)2
Molecular mass: 130.20
ICSC # 0885
CAS # 1321-74-0
RTECS # CZ9370000
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Heating will cause rise in pressure with risk of bursting.
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NO open flames.
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Powder
,
foam
,
carbon dioxide
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Explosion
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Above 76°C explosive vapour/air mixtures may be formed.
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Above 76°C use a closed system, ventilation.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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PREVENT GENERATION OF MISTS!
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•Inhalation
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Cough.
Sore throat.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Do NOT induce vomiting.
Rest.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Collect leaking and spilled liquid in sealable containers as far as possible.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
(Extra personal protection: filter respirator for organic gases and vapours).
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Separated from
oxidants.
Cool.
Store only if stabilized.
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance can polymerize
due to heating
with fire or explosion hazard.
Reacts violently with oxidants.
Occupational Exposure Limits:
TLV: 10 ppm; 53 mg/m3 (ACGIH 1996).
MAK: IIb (not established but data is available) (DFG 2008).
OSHA PEL: none
NIOSH REL: TWA 10 ppm (50 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
irritates
the eyes,
the skin and
the respiratory tract.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
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Physical
Properties
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Boiling point: 195°C
Melting point: -66.9 - -52°C
Relative density (water = 1): 0.9
Solubility in water: none
Vapour pressure, Pa at 32.7°C: 133
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Relative vapour density (air = 1): 4.48
Flash point: 76°C o.c.
Auto-ignition temperature: 500°C
Explosive limits, vol% in air: 1.1-6.2
Octanol/water partition coefficient as log Pow: 3.59 (estimated)
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Environmental
Data
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N O T E S
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The commercial form of vinylbenzene contains the three isomeric forms but the meta isomer predominates.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
DVB-22, DVB-55 are trade names.
Also consult
ICSC # 0073 on Styrene.
NFPA Code: H2; F2; R2;
Card has been partially updated in November 2008: see Occupational Exposure Limits, Fire fighting.
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ADDITIONAL INFORMATION
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ICSC: 0885
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DIVINYLBENZENE (MIXED ISOMERS)
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(C) IPCS, CEC, 1994
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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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