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OCTAMETHYLCYCLOTETRASILOXANE ICSC: 0310
October 2002
Cyclotetrasiloxane, octamethyl- PDF for printing Explanation of fields
CAS No: 556-67-2
RTECS No: GZ4397000
EC No: 014-018-00-1
    C8H24O4Si4
Molecular mass: 296.6

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION         FIRE FIGHTING   
FIRE Flammable. NO open flames. Powder, alcohol-resistant foam, water in large amounts, carbon dioxide.
EXPLOSION      
 
EXPOSURE   PREVENT GENERATION OF MISTS!  
Inhalation   Ventilation. Fresh air, rest.
Skin   Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes   Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Nausea. Vomiting. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking liquid in covered containers. Xn Symbol
R: 53-62
S: (2-)36/37-46-51-61

EMERGENCY RESPONSE STORAGE
   

IMPORTANT DATA
Physical State; Appearance
OILY COLOURLESS LIQUID.

Occupational exposure limits
TLV not established.

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

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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
 

NOTES
 

IPCS
International
Programme on
Chemical Safety
WHO ILO UNEP EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2002
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

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