1.Product Name:Octamethylcyclotetrasiloxane (D4)
2.Molecular Formula: (CH3)8Si4O4
3.CAS No.: 556-67-2
4.Freezing Point: 17~ 18℃
5.Boiling Point: 175~ 176℃
6.Flash Point:60℃
7. Relative Density (water=1): 0.956g/cm3 (25℃)
8. Technological Index
Item | Index |
Appearance | Colorless transparent liquid |
Content of Octamethylcyclotetrasiloxane (%) ≥ | 99.00 |
Refractive index nD20 | 1.3960~ 1.3970 |
Chroma/Platinum-cobalt scale/Hazen unit ≤ | 10 |
9. Application and Usage
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 silicone 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.
10. Package, Storage and Handling
N.W 190KG/Steel drum, N.W. 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 hazardous substances. Be careful when loading and unloading to avoid damages of the package.
11. Others
Chemical Stability: Stable in closed containers under specified storage and handling conditions.
Conditions to Avoid: Incompatible materials, any sources of ignition or heat,exposure to moist air or water.
Incompatibilities with Other Materials: Strong oxidizing agents,acids,bases.
Hazardous Decomposition Products: In case of a fire, oxides of carbon, hydrocarbons, silicon oxide, fumes, and smoke may be generated by thermal decomposition or combustion.
Hazardous Polymerization: May occur.
