ICSC 0310 - OCTAMETHYLCYCLOTETRASILOXANE

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OCTAMETHYLCYCLOTETRASILOXANE	ICSC: 0310 (September 2002)
Cyclotetrasiloxane, octamethyl-

CAS #: 556-67-2

EC Number: 209-136-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Flammable.	NO open flames.	Use water in large amounts, powder, alcohol-resistant foam, carbon dioxide.

PREVENT GENERATION OF MISTS!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation		Use ventilation.	Fresh air, rest.
Skin		Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes		Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Nausea. Vomiting.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Collect leaking and spilled liquid in covered containers as far as possible.	According to UN GHS Criteria Transportation UN Classification
STORAGE

PACKAGING

OCTAMETHYLCYCLOTETRASILOXANE

ICSC: 0310

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS OILY LIQUID. Physical dangers Chemical dangers	Formula: C₈H₂₄O₄Si₄ Molecular mass: 296.6 Boiling point: 175°C Melting point: 17.5°C Relative density (water = 1): 0.96 Solubility in water: none Vapour pressure, Pa at 21.7°C: 133.3 Flash point: 56°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS OILY LIQUID.

Physical dangers

Chemical dangers

Formula: C₈H₂₄O₄Si₄
Molecular mass: 296.6
Boiling point: 175°C
Melting point: 17.5°C
Relative density (water = 1): 0.96
Solubility in water: none
Vapour pressure, Pa at 21.7°C: 133.3
Flash point: 56°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. Effects of short-term exposure	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

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure

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

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

EC Classification
Symbol: Xn; R: 53-62; S: (2)-36/37-46-51-61

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