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  • Siwin
  • Siwin-D4
  • 556-67-2


The Physical Properties 

Product Name: Octamethylcyclotetrasiloxane (D4) 

Molecular Formula:(CH3)8Si4O4 

CAS No.:556-67-2 

Product Standard:GB/T 20435-2006 

Physical and Chemical Properties:


Freezing Point: 17~18℃ 

Boiling Point: 175-176℃ 

Flash Point: 60℃ 

Relative Density(water=1): 0.956 

Appearance: Colorless transparent liquid without visible impurity

Description & Applications 

It is colorless, inflammable, and can not dissolve in water, but dissolve in organic solvents such as benzene, etc. It can be used to synthesize organic silicon polymer by acid or alkali catalysis to manufacture silicone oil, silicone rubber, etc. It can also be used directly as treating agent for rubber stuffing and the raw material for cosmetic.

Packing Steel drum 

net weight 190kg/drum or International Bulk Container, net weight 950kg/IBC or ISO TANK. Store in a cool, dry, well-ventilated area and keep away from oxidant, acid and alkali. The storage area should be equipped with the corresponding species and quantity of fire equipment and leakage emergency equipment. Handling according to hazardoussubstances. Be careful when loading and unloading to avoid damages of the package.

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