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!
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Dimethyldichlorosilane（M2） | ZhongtianEast Fluorine Silicon Material Co., Ltd.,liquid silicone rubber manufacturers, mainly engaged in organic silicon monomer, research and dev... |
 |
Silicone Window & Door Sealant | Name: Silicone Window & Door Sealant Features: One component, neutral, room temperature curing building silicone sealant, and non-corr... |
 |
Trimethylchlorosilane (M3) | Name: Trimethylchlorosilane Feature: Trimethylchlorosilane is a colorless or light yellow transparent irritating liquid. Trimethylchlor... |
 |
Room Temperature Vulcanized Silicone Rubber | Product Name: room temperature vulcanizing silicone（Methyl RTV 107/OH Polymer） Molecular Formula: HO[(CH3 ) 2 SiO]nH CAS No.: 70131-67-8 P... |
 |
Weather-resistant Adhesive For Neutral Curtainwall | Name: Weather-resistant Adhesive For Neutral Curtainwall Feature: GS885 is one component, neutral cure silicone adhesive. It curing quickl... |
