Octamethylcyclotetrasiloxane (D4)
Product Name: D4 Silicone Octamethylcyclotetrasiloxane
Molecular Formula: (CH3 ) 8 Si4 O4
Octamethylcyclotetrasiloxane CASNo.: 556-67-2
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
Octamethylcyclotetrasiloxane Uses
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 a treating agent for rubber stuffing and the raw material for cosmetics.
Preparation Method of omctsD4 Silicone
Dimethyl dichlorosilane is added dropwise to water, the temperature is maintained at 30-40℃, stratified, the acidic water is released, the oily substance is hydrolyzed with sodium hydroxide solution, the hydrolysate and 0.5%-2% potassium hydroxide are added into the cracking kettle and cracked at 120-140℃ and 99.8kPa vacuum. The cracked material is fractionated and the fraction is collected at 173-176°C to obtain d4 silicone octamethylcyclotetrasiloxane.
If you are looking for a reliable silicone products manufacturer, don't hesitate to contact us!
Send product request
Other supplier products
 |
Octamethylcyclotetrasiloxane (D4) | Product Name: D4 Silicone Octamethylcyclotetrasiloxane Molecular Formula: (CH3 ) 8 Si4 O4 Octamethylcyclotetrasiloxane CASNo.: 556-67-2 Ph... |
 |
RTV Silicone Rubber | RTV Silicone Rubber Silicone rubber is a straight chain of high molecular weight polysiloxane, molecular weight is generally more than 150,000, it... |
 |
Silicone Rubber (HTV) | HTV quality or high-temperature vulcanized silicone rubber is used in the compression molding press. Special silicone rubber materials are chosen b... |
 |
Silane Coupling Agents | Silane coupling agent, also known as silane treatment agent and primer, is a kind of low molecular organic silicon compound with special structure.... |
 |
Trimethylchlorosilane (M3) | Name: Trimethylchlorosilane Feature: Trimethylchlorosilane is a colorless or light yellow transparent irritating liquid. CAS No.: 75-77-4 Tech... |
