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 Sealant | Silicone based caulkis a part of silicone products. It is mainly divided into deacetic acid type, dealcoholic type, deamination type and oxime type... |
 |
Silicone Products in Rubber Industry | ZHONGTIAN gives the rubber industryunique silicone products. Discover how individual solutions are created worldwide. RTV-2 SILICONE RUBBER MOLDM... |
 |
Methyltrichlorosilane (M1) | Name: Methyltrichlorosilane(M1) Feature: This product is a colorless transparent liquid. It is the main material of silicone products to produce... |
 |
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... |
 |
Chlorosilane | Chlorosilanes are a class of liquids that range in color from clear colorless to light yellow colored. A clear to light yellow liquid. Slightly mor... |
Same products
 |
flask | Seller: PakGent Bioscience (Suzhou) Co., Ltd. | Fit tips, DNase/RNase free, sterile, rack pack（78mm） PakGent UFPT-1000R-L Low Retention 1000ul M... |
 |
Lesinurad | Seller: Lepu Medical Technology(Beijing)Co.,Ltd | Lesinurad *Product registration and availability vary by country. For more information on prod... |
 |
LEN503 Nebulizer | Seller: Lepu Medical Technology(Beijing)Co.,Ltd | Cute pet caring Small atomized particles nebulizer machine for kids Adjustable atomizing cup H... |
 |
SINOART Shanghai Co., Ltd. | Seller: SINOART Shanghai Co., Ltd. | SINOART Shanghai Co., Ltd. is a combined industrial & trading company in China, specializing ... |
 |
High Voltage Surge Arresters | Seller: Guangdong Yufeng Industries Co.,Ltd | High voltage surge arresters, also called lightning arresters, are electrical devices designed to... |
