Octamethylcyclotetrasiloxane (D4)
Product Name: Octamethylcyclotetrasiloxane (D4 )
Molecular Formula: (CH3 ) 8 Si4 O4
CAS No.: 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 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 octamethylcyclotetraoxysilane.
Zhongtian East is a silicone product supplier, if you want to buy silicone products, contact us .
Send product request
Other supplier products
Silicone Fluid | Silicone fluids have unique properties because they are not products of petroleum or organic chemistry. They were the first, and are still the only... | |
Silicone Fluid | Silicone fluids have unique properties because they are not products of petroleum or organic chemistry. They were the first, and are still the only... | |
Dimethyldichlorosilane(M2) | This product is a colorless transparent liquid, inflammable, explosive. Dimethyl dichloro silaneis the raw material of silicone products, the react... | |
Mixing Silicone Rubber | Mixing Silicone Rubber Usage: it can be used for pressing buttons, o-ring, sealing gasket, shaft seal, rubber roller etc. Packaging and shipp... | |
Dimethyldichlorosilane(M2) | ZhongtianEast Fluorine Silicon Material Co., Ltd.,liquid silicone rubber manufacturers, mainly engaged in organic silicon monomer, research and dev... |
Same products
Ukraine large diameter liquid nitrogen container KGSQ nitrogen tanks | Seller: Henan Tianzhidao Biological Technology Co., Ltd | In biological sample centers or scientific research institutions, there are a large number of cel... | |
Cambodia gas-phase liquid nitrogen tanks KGSQ liquid nitrogen container | Seller: Henan Tianzhidao Biological Technology Co., Ltd. | In biological sample centers or scientific research institutions, there are a large number of cel... | |
OY2004 | Seller: Jiaxing Ouya Machinery Manufacturing Co., Ltd. | Jiaxing Ouya Machinery Manufacturing Co., Ltd. is a manufacturer specializing in the production o... | |
Electroplated Tools | Seller: Henan E-Grind Abrasives Co., Ltd. | Henan E-Grind Abrasives Co., Ltd. produces electroplated tools by plating diamond or CBN grains w... | |
Electroplated Diamond Tools | Seller: Henan E-Grind Abrasives Co., Ltd. | Electroplated diamond drill bitscan be made in various shapes, so it will be an excellent option ... |