Octamethylcyclotetrasiloxane (D4)
Product Name: D4 Silicone Octamethylcyclotetrasiloxane
Molecular Formula: (CH3 ) 8 Si4 O4
OctamethylcyclotetrasiloxaneCASNo.: 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
Technical Data of D4 Octamethylcyclotetrasiloxane
|
Item |
Index |
|
Chroma/ Platinum-cobalt scale/ Hazen unit |
≤10 |
|
Refractive index nD20 |
|
|
Content of Octamethyl cyclotetrasiloxane/% |
≥99.0 |
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 Octamethylcyclotetrasiloxane
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.
As one of silicone suppliers, we will do our best to meet all the needs of customers.
在线联系供应商
Other supplier products
 |
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.... |
 |
Fumed Silica | Name: Fumed silica Appearance: Fluffy white powder. Applications of Fumed Silica Due to its small particle size, the specific surface area... |
 |
Silicone Fluid | ZhongtianEast Fluorine Silicon Material Co., Ltd.,liquid silicone rubber manufacturers, mainly engaged in organic silicon monomer, research and dev... |
 |
Methyltrichlorosilane (M1) | Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone suppliers, mainly engaged in organic silicon monomer, research and development of flu... |
Same products
 |
C500-1.7 Series High Flow Multi-Stage Centrifugal Blower /Centrifugal Blower | 卖方: Greentech International (Zhangqiu) Co., Ltd | Greentech International (Zhangqiu) Co., Ltdis the professional blower supplier.Multistage Centrif... |
 |
Common Rail injector control valve F00VC01303 | 卖方: China Lutong Part Plant | Common Rail injector control valve F00VC01303 Tina#Stainless Steel Cylindrical Pin##Denso Common... |
 |
Common Rail injector control valve F00VC01200 | 卖方: China Lutong Part Plant | Common Rail injector control valve F00VC01200 Tina#Stainless Steel Cylindrical Pin##Denso Common... |
 |
Injector Control Valve Plate 24# | 卖方: China Lutong Part Plant | Injector Control Valve Plate 24# Tina#Stainless Steel Cylindrical Pin##Denso Common Rail Injecto... |
 |
Injector Control Valve Plate 12# | 卖方: China Lutong Part Plant | Injector Control Valve Plate 12# Tina#Stainless Steel Cylindrical Pin##Denso Common Rail Injecto... |
