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.
在线联系供应商
Other supplier products
 |
Silicone Window & Door Sealant | Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone products manufacturer, mainly engaged in organic silicon monomer, research and develo... |
 |
Silicone Rubber (HTV) | Silicone Rubber (HTV) HTV quality or high-temperature vulcanized silicone rubber is used in the compression molding press. Special silicone rubber... |
 |
PRODUCTS | RTV Silicone Rubber Silicone rubber is a straight chain of high molecular weight polysiloxane, molecular weight is generally more than 150,000, it... |
 |
Silicone Sealant | Silicone Sealant Silicone sealant is a part of silicone products. It is mainly divided into deacetic acid type, dealcoholic type, deamination type... |
 |
Silicone Window & Door Sealant | Name: Silicone Window Sealant& Door Sealant Features: One component, neutral, room temperature curing building silicone sealant, and non... |
Same products
 |
Washable Cheap 13.56Mhz 213 Nfc Mini Stickers 13.56 Mhz RFID Label Sticker Tag HF/UHF Tags Dry Inlay | 卖方: XIUCHENG RFID | ize：On request Material:PET, PVC,paper or customized Frequency:UHF/HF Printing:Thermal transfe... |
 |
Micronized wax used for industrial paint processing | 卖方: Syntop chemical Co.,Ltd. | Micronized wax is a vital functional additive in industrial paint processing, with primary functi... |
 |
Plant Growth Regulator Manufacturer | 卖方: HEBEI LAIKE BIOTECH CO.LTD | Plant Growth Regulator Manufacturer Plant Growth Regulator Manufacturer - Laike Biotech spec... |
 |
Fungicide Supplier | 卖方: HEBEI LAIKE BIOTECH CO.LTD | Fungicide Supplier Wholesale Fungicide - Laike Biotech is a professional supplier and manufa... |
 |
Fungicide Supplier | 卖方: HEBEI LAIKE BIOTECH CO.LTD | Fungicide Supplier Wholesale Fungicide - Laike Biotech is a professional supplier and manufa... |
