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 .
在线联系供应商
Other supplier products
 |
Trimethylchlorosilane (M3) | Name: Trimethylchlorosilane Feature: Trimethylchlorosilane is a colorless or light yellow transparent irritating liquid. CAS No.: 75-77-4 Techni... |
 |
Octamethylcyclotetrasiloxane (D4) | Product Name: D4 Silicone Octamethylcyclotetrasiloxane Molecular Formula: (CH3 ) 8 Si4 O4 Octamethylcyclotetrasiloxane CASNo.: 556-67-2 Ph... |
 |
Weather-resistant Adhesive For Neutral Curtainwall | Name: Weather-resistant Adhesive For Neutral Curtainwall Feature: GS885 is one component, neutral clear silicone . It curing quickly, high adhes... |
 |
Silicone Products in Construction | ZHONGTIAN gives the construction industry a unique and particularly diverse portfolio based on two chemical platforms. Discover how individual sol... |
 |
Octamethylcyclotetrasiloxane (D4) | Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone product supplier, mainly engaged in organic silicon monomer, research and development... |
Same products
 |
Ten-Impeller Paddle Wheel Aerator | 卖方: Taizhou Jinhu Mechanical & Electrical Co., Ltd. | Taizhou Jinhu Mechanical & Electrical Co., Ltd. offers the Ten-Impeller Paddle Wheel Aerator,... |
 |
Custom Flat Lollipop Production | 卖方: Jiangsu Flying Dragon Food Machinery Co., Ltd. | Custom Flat Lollipop Production provides tailored machinery solutions for shaping, forming, and p... |
 |
custom electrical enclosures | 卖方: 869600 | custom electrical enclosures When searching for , they are looking for a manufacturer who ca... |
 |
cnc precision machining service | 卖方: 869600 | cnc precision machining service CNC Precision Machining Service Hebi Jin Hui Precision Mach... |
 |
Microcrystalline wax used for high end candle production | 卖方: Syntop chemical Co.,Ltd. | The core industrial applications of microcrystalline wax primarily stem from its finer crystal st... |
