ICSC 0735 - 4-VINYL TOLUENE

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4-VINYL TOLUENE

ICSC: 0735
_{April 1997}

p-Methyl styrene
1-Ethenyl-4-methylbenzene
p-Vinyl toluene

CAS No: 622-97-9
RTECS No: WL5076000
UN No: 2618

CH₃C₆H₄CH=CH₂ / C₉H₁₀
Molecular mass: 118.2

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Flammable. Heating will cause rise in pressure with risk of bursting.	NO open flames.	Water spray, foam, powder, carbon dioxide.
EXPLOSION	Above 52.8°C explosive vapour/air mixtures may be formed.	Above 52.8°C use a closed system, ventilation, and explosion-proof electrical equipment.	In case of fire: keep cylinder cool by spraying with water.

EXPOSURE		PREVENT GENERATION OF MISTS!
Inhalation	Dizziness. Drowsiness. Dullness. Headache. Sore throat.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin	Dry skin. Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness.	Safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain. Nausea. Vomiting.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Ventilation. 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. Personal protection: self-contained breathing apparatus.	UN Hazard Class: 3 UN Pack Group: III	Marine pollutant.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-30GF1-III-9 NFPA Code: H2; F2; R2	Separated from strong oxidants, strong acids. Well closed. Keep in a well-ventilated room. Store only if stabilized.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

Physical dangers
The vapour is heavier than air.

Chemical dangers
The substance may polymerize due to warming with fire or explosion hazard. Reacts with strong oxidants and strong acids.

Occupational exposure limits
TLV: 50 ppm as TWA, 100 ppm as STEL; A4 (not classifiable as a human carcinogen); (ACGIH 2004).
MAK: 100 ppm, 490 mg/m³; Peak limitation category: I(2); (DFG 2004).

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion.

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

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

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The liquid defats the skin. The substance may have effects on the liver and kidneys, resulting in tissue lesions.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 173°C Melting point: -34°C Relative density (water = 1): 0.897 Solubility in water: none Vapour pressure, kPa at 20°C: <0.1 Relative vapour density (air = 1): 4.1 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Flash point: 52.8°C Auto-ignition temperature: 515°C Explosive limits, vol% in air: 1.1-5.3 Octanol/water partition coefficient as log Pow: 3.580

NOTES

Also consult ICSC 0514 Vinyl toluene isomer mixture.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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