ICSC 0735 - 4-VINYL TOLUENE

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4-VINYL TOLUENE	ICSC: 0735 (December 2022)
p-Methyl styrene 1-Ethenyl-4-methylbenzene p-Vinyl toluene

CAS #: 622-97-9

UN #: 2618

EC Number: 210-762-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Flammable. Above 46°C explosive vapour/air mixtures may be formed.	NO open flames, NO sparks and NO smoking. Above 46°C use a closed system, ventilation and explosion-proof electrical equipment.	Use water spray, foam, powder, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

PREVENT GENERATION OF MISTS!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Sore throat. Cough. Dizziness. Headache. Drowsiness. Vomiting. Lethargy.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Dry skin. Redness.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .
Eyes	Redness. Pain.	Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Aspiration hazard! Abdominal pain. Nausea. Vomiting.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Remove all ignition sources. Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance, protective clothing and protective gloves. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.	According to UN GHS Criteria DANGER Flammable liquid and vapour Harmful if inhaled Causes skin irritation Causes serious eye irritation May cause respiratory irritation May be fatal if swallowed and enters airways Toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 3; UN Pack Group: III
STORAGE
Fireproof. Separated from strong oxidants and strong acids. Well closed. Store only if stabilized. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.
PACKAGING
Marine pollutant.

4-VINYL TOLUENE

ICSC: 0735

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers Vapours are uninhibited and may polymerize, causing blockage of vents. Chemical dangers The substance may polymerize if it is not stabilized. This generates fire or explosion hazard. Reacts violently with strong oxidants and strong acids.	Formula: CH₃C₆H₄CH=CH₂ / C₉H₁₀ Molecular mass: 118.2 Boiling point: 173°C Melting point: -34°C Density: 0.92 g/cm³ Solubility in water, mg/l at 25°C: 89 (practically insoluble) Vapour pressure, kPa at 25°C: 0.24 Relative vapour density (air = 1): 4.1 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Flash point: 46°C c.c. Auto-ignition temperature: 494°C Explosive limits, vol% in air: 1.1-5.3 Octanol/water partition coefficient as log Pow: 3.580 Viscosity: 0.75 mm²/s at 20°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers
Vapours are uninhibited and may polymerize, causing blockage of vents.

Chemical dangers
The substance may polymerize if it is not stabilized. This generates fire or explosion hazard. Reacts violently with strong oxidants and strong acids.

Formula: CH₃C₆H₄CH=CH₂ / C₉H₁₀
Molecular mass: 118.2
Boiling point: 173°C
Melting point: -34°C
Density: 0.92 g/cm³
Solubility in water, mg/l at 25°C: 89 (practically insoluble)
Vapour pressure, kPa at 25°C: 0.24
Relative vapour density (air = 1): 4.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 46°C c.c.
Auto-ignition temperature: 494°C
Explosive limits, vol% in air: 1.1-5.3
Octanol/water partition coefficient as log Pow: 3.580
Viscosity: 0.75 mm²/s at 20°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the nervous system. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis.	Inhalation risk A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the liver.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the nervous system. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis.

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

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the liver.

OCCUPATIONAL EXPOSURE LIMITS
MAK: 98 mg/m³, 20 ppm; peak limitation category: I(2); pregnancy risk group: D. TLV (see Notes)

ENVIRONMENT
The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in the environment. It is strongly advised not to let the chemical enter into the environment.

NOTES
See ICSC 0514.

ADDITIONAL INFORMATION

EC Classification

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