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 .
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Dimethyldichlorosilane（M2） | ZhongtianEast Fluorine Silicon Material Co., Ltd.,liquid silicone rubber manufacturers, mainly engaged in organic silicon monomer, research and dev... |
 |
Trimethylchlorosilane (M3) | Name: Trimethylchlorosilane Feature: Trimethylchlorosilane is a colorless or light yellow transparent irritating liquid. CAS No.: 75-77-4 Tech... |
 |
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 Rubber (HTV) | HTV quality or high-temperature vulcanized silicone rubber is used in the compression molding press. Special silicone rubber materials are chosen b... |
 |
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... |
Похожие товары
 |
YC160W Wheel excavator YC160W | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | YC160W Wheel excavator YC160W wheel excavator is a new generation of full hydraulic wheel excavat... |
 |
Yuchai U20 mini excavator | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | Yuchai U20 mini excavator Improvements in Over 80 Details: Tailless Excavator U20 is a Yuchai ... |
 |
Yuchai YC80 small excavator | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | Yuchai YC80 small excavator International brand engine It is equipped with Yanmar 4TNV98C natur... |
 |
Top Type Hydraulic Breaker | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | Top Type Hydraulic Breaker With the higher restriction of blasting control,hydraulic breakeris w... |
 |
S35-Electric Skid Steer Loader | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | S35-Electric Skid Steer Loader Yuchai S35 Electric Skid Steer Loaderis compact and flexible, des... |
