Octamethylcyclotetrasiloxane (D4)
Product Name: D4 Silicone Octamethylcyclotetrasiloxane
Molecular Formula: (CH3 ) 8 Si4 O4
Octamethylcyclotetrasiloxane CASNo.: 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.
在线联系供应商
Other supplier products
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... | |
Silicone Products in Chemical Industry | Methyl silicone oil is used as defoamer in chemical, pharmaceutical and food industries; as head oil, hair cream, hairdressing agent, hair fixing ... | |
Fumed Silica | Name: Fumed silica Appearance: Fluffy white powder. Technical Data of Fumed Silica Item Indexes The nitrogen ads... | |
Methyltrichlorosilane (M1) | Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone suppliers, mainly engaged in organic silicon monomer, research and development of flu... | |
Silicone Window & Door Sealant | Name: Silicone Window & Door Sealant Features: One component, neutral, room temperature curing building silicone sealant, and non-corr... |
Same products
Room Temperature Vulcanized Silicone Rubber | 卖方: Zhongtian East Fluorine Silicon Material Co., Ltd | Product Name: room temperature vulcanizing silicone(Methyl RTV 107/OH Polymer) Molecular Formu... | |
Polydimethylsiloxane | 卖方: Zhongtian East Fluorine Silicon Material Co., Ltd | Name: Hydroxy Terminated Polydimethylsiloxane(Methyl Silicone Oil) Melt Point (℃): -59 Spon... | |
Octamethylcyclotetrasiloxane (D4) | 卖方: Zhongtian East Fluorine Silicon Material Co., Ltd | Product Name: D4 Silicone Octamethylcyclotetrasiloxane Molecular Formula: (CH3 ) 8 Si4 O4 O... | |
Mixing Silicone Rubber | 卖方: Zhongtian East Fluorine Silicon Material Co., Ltd | Mixing Silicone Rubber Usage: it can be used for pressing buttons, o-ring, sealing gasket, sha... | |
Methyl Vinyl Silicone Rubber | 卖方: Zhongtian East Fluorine Silicon Material Co., Ltd | Name: Methyl Vinyl Silicone Rubber Feature: High temperature resistant Appearance: ... |