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.
Send product request
Other supplier products
 |
Silicone Window & Door Sealant | Name: Silicone Window & Door Sealant Features: One component, neutral, room temperature curing building silicone sealant, and non-corr... |
 |
Silicone Sealant | Silicone Sealant Silicone sealant is a part of silicone products. It is mainly divided into deacetic acid type, dealcoholic type, deamination type... |
 |
Octamethylcyclotetrasiloxane (D4) | Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone product supplier, mainly engaged in organic silicon monomer, research and development... |
 |
Silicone Sealant | Silicone sealant is a part of silicone products. It is mainly divided into deacetic acid type, dealcoholic type, deamination type and oxime type. S... |
 |
Methyl Vinyl Silicone Rubber | ZhongtianEast Fluorine Silicon Material Co., Ltd.,liquid silicone rubber manufacturers, mainly engaged in organic silicon monomer, research and dev... |
Same products
 |
10000L Bright Beer Tank | Seller: Shandong HG Engineering Equipment Co., Ltd. | 10000L Bright Beer Tank is often also called serving tank, tax determination tanks or clear beer ... |
 |
2000L Fermentation Tank | Seller: Shandong HG Engineering Equipment Co., Ltd. | 2000L Fermentation Tank is a Modular cylindrically-conical tank consist of a base tank (BT) and e... |
 |
300CPH(5CPM) Semi-Auto Beer Canning Machine | Seller: Shandong HG Engineering Equipment Co., Ltd. | 300CPH(5CPM) Semi-Auto Beer Canning Machine is specifically designed to beer filling and include ... |
 |
2000L 2 Vessel Copper Beer Brewing Equipment | Seller: Shandong HG Engineering Equipment Co., Ltd. | 2000L 2 Vessel Copper Beer Brewing Equipment , Copper has the highest heat conductivity, is easy ... |
 |
1000L 3 Vessel Beer Brewing Equipment | Seller: Shandong HG Engineering Equipment Co., Ltd. | 1000L 3 Vessel Beer Brewing Equipment is a brewery for restaurants, commecial and industrial brew... |
