Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content
NIOSH

4-VINYL TOLUENE

ICSC: 0735

p-Methyl styrene
1-Ethenyl-4-methylbenzene
p-Vinyl toluene
CH3C6H4CH=CH2 / C9H10
Molecular mass: 118.2
ICSC # 0735 		CAS # 622-97-9
RTECS # WL5076000
UN # 2618
July 04, 1997 Validated

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

STORAGE

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.
Separated from strong oxidants, strong acids. Well closed. Keep in a well-ventilated room. Store only if stabilized.

Marine pollutant.
UN Hazard Class: 3
UN Packing Group: III
ICSC: 0735 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.

4-VINYL TOLUENE

ICSC: 0735

I

M

P

O

R

T

A

N

T


D

A

T

A

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

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

ENVIRONMENTAL
DATA


N O T E S

Also consult ICSC 0514 Vinyl toluene isomer mixture. Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-III-9

NFPA Code: H2; F2; R2;

ADDITIONAL INFORMATION



ICSC: 0735 4-VINYL TOLUENE
(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.
Top