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
Polydimethylsiloxane | Name: Polydimethylsiloxane(Methyl Silicone Oil) Melt Point (℃): -59 Spontaneous combustion point (℃): 450 Saturated vapor pressure (KPa): ... | |
Silane Coupling Agents | Silane coupling agent, also known as silane treatment agent and primer, is a kind of low molecular organic silicon compound with special structure.... | |
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... | |
Trimethylchlorosilane (M3) | Name: Trimethylchlorosilane Feature: Trimethylchlorosilane is a colorless or light yellow transparent irritating liquid. Trimethylsilyl... | |
Methyltrichlorosilane (M1) | Methyltrichlorosilane (M1) 390 Name: Methyltrichlorosilane (M1) Feature: This product is a colorless transparent liquid. It is the main materia... |
Same products
Outdoor Patio Shades | Seller: Duoyes Living Arts and Technology(Ningbo) Co.,Ltd. | Duoyes Outdoor Patio Shades, a classic and innovative category to keep individuals protected duri... | |
Outdoor Padded Sofas | Seller: Duoyes Living Arts and Technology(Ningbo) Co.,Ltd. | Aluminum + Padded Fabric, are the two essential elements for Duoyes outdoor sofa with cushionsCol... | |
Outdoor Ottomans | Seller: Duoyes Living Arts and Technology(Ningbo) Co.,Ltd. | Duoyes outdoor patio ottoman, designed as a seat with a soft top and variety of shapes, can be us... | |
Outdoor Modular Daybeds | Seller: Duoyes Living Arts and Technology(Ningbo) Co.,Ltd. | Duoyes Outdoor Modular Daybedis a collection that indicates the quality of our inspiration and in... | |
Outdoor Lifting Tables | Seller: Duoyes Living Arts and Technology(Ningbo) Co.,Ltd. | Duoyes Lifting Tables Collection, an innovation initiative from an ergonomics design, devotes to ... |