ICSC 1201 - STYRENE OXIDE

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STYRENE OXIDE	ICSC: 1201 (April 2006)
(Epoxyethyl)benzene 1,2-Epoxyethylbenzene Styrene-7,8-oxide Phenylethylene oxide Phenyl oxirane Styrene epoxide Styryl oxide

CAS #: 96-09-3

EC Number: 202-476-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Above 76°C explosive vapour/air mixtures may be formed.	NO open flames. NO contact with acids or bases. Above 76°C use a closed system and ventilation.	Use powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Drowsiness. Unconsciousness. Vomiting.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Pain.	Protective clothing. Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Further see Inhalation.	Do not eat, drink, or smoke during work. Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER Combustible liquid Harmful if swallowed Causes skin irritation Causes eye irritation Suspected of causing genetic defects May cause cancer Transportation UN Classification
STORAGE
Separated from acids, bases and food and feedstuffs. Ventilation along the floor.
PACKAGING
Do not transport with food and feedstuffs.

STYRENE OXIDE

ICSC: 1201

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-PALE-YELLOW LIQUID. Physical dangers No data. Chemical dangers The substance may polymerize due to heating above the flash point, under the influence of acids and bases.	Formula: C₈H₈O / C₆H₅CHCH₂O Molecular mass: 120.2 Boiling point: 194°C Melting point: -36.7°C Relative density (water = 1): 1.05 Solubility in water, g/100ml at 25°C: 0.3 (poor) Vapour pressure, Pa at 20°C: 40 Relative vapour density (air = 1): 4.30 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.001 Flash point: 76°C c.c. Auto-ignition temperature: 498°C Explosive limits, vol% in air: 1.1-22 Octanol/water partition coefficient as log Pow: 1.61

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-PALE-YELLOW LIQUID.

Physical dangers
No data.

Chemical dangers
The substance may polymerize due to heating above the flash point, under the influence of acids and bases.

Formula: C₈H₈O / C₆H₅CHCH₂O
Molecular mass: 120.2
Boiling point: 194°C
Melting point: -36.7°C
Relative density (water = 1): 1.05
Solubility in water, g/100ml at 25°C: 0.3 (poor)
Vapour pressure, Pa at 20°C: 40
Relative vapour density (air = 1): 4.30
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.001
Flash point: 76°C c.c.
Auto-ignition temperature: 498°C
Explosive limits, vol% in air: 1.1-22
Octanol/water partition coefficient as log Pow: 1.61

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance is irritating to the eyes and skin. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness.	Inhalation risk No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. Effects of long-term or repeated exposure This substance is probably carcinogenic to humans.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and skin. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness.

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.

Effects of long-term or repeated exposure
This substance is probably carcinogenic to humans.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 1 ppm as TWA; (skin); (DSEN); A3 (confirmed animal carcinogen with unknown relevance to humans)

ENVIRONMENT

NOTES
Do NOT take working clothes home.

ADDITIONAL INFORMATION

EC Classification
Symbol: T; R: 45-21-36; S: 53-45; Note: E

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