Octamethylcyclotetrasiloxane

Octamethylcyclotetrasiloxane (D4)

Product Description
It is colorless, inflammable, and cannot dissolve in water, but dissolve in organic solvents such as benzene, etc.
Molecular Formula: (CH3 )8Si4O4
CAS No.: 556-67-2
Freezing Point: 17~18℃
Boiling Point: 175~176℃
Flash Point: 60℃
Relative Density（water=1）: 0.956

Technical index

Item	Index
Appearance	Colorless transparent liquid without visible impurity
Chroma/ Platinum-cobalt scale/ Hazen unit	≤10
Refractive index nD20	1.3960~1.3970
Content of Octamethylcyclotetrasiloxane/%	≥99. 0

Application
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 a treating agent for rubber stuffing and the raw material for cosmetics.

Packaging, Storage and Transportation
195KG iron drum, 950KG IBC；
Keep container closed and away from heat, sparks, flame, and the direct sunlight, acid and alkali.Stored at 20℃～40℃ warehouse, please do the antifreeze preparations when the temperature is below 17 ℃.Shelf time:6 months. Beyond the time ,it can still be used after re-test, if the test result meets the requirement of this standard.