Octamethylcyclotetrasiloxane
556-67-2
| Product Name | Octamethyl cyclotetrasiloxane(D₄) |
| Molecular Formula | (CH₃)₈Si₄O₄ |
| CAS No. | 556-67-2 |
| Product Standard | GB/T 20435-2006 |
| Physical and Chemical Properties | Freezing Point: 17~18°C Boiling Point: 175-176°C Flash Point: 60°C Relative Density(water=1):0.956 |
| Appearance | Colorless transparent oily liquid |
Chemical Stability: Stable in closed contain-ers under specifed storage and handlingconditions.
Conditions to Avoid: Incompatible materi-als, any sources of ignition or heat,exposureto moist air or waterIncompatibilities with Other Materials:Strong oxidizing agents,acids,bases.Hazardous Decomposition Products: In caseof a fre, oxides of carbon, hydrocarbons,silicon oxide,fumes,and smoke may begenerated bythermal decomposition orcombustion.Hazardous Polymerization: May occur.
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 siliconpolymerby 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.
Steel drum/Plastic drum, net weight 190kg)drum or International Bulk Container, netweight 950kg/BC,or ISOTANK. Store in acool, dry, well-ventilated area and keep awayfrom oxidant, acid and alkali. The storage areashould be equipped with the correspondingspecies and quantity offire equipment andleakage emergencyequipment.Handlingaccording to hazardous substances. Becarefulwhen loading and unloading to avoiddamages of the package.
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