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< /a>
|
Item |
Index |
|
Chroma/ Platinum-cobalt scale/ Hazen unit |
≤10 |
|
Refractive index nD20 |
1.3960~1.3970 |
|
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 .
Persona a contactar : Cheng Doris, 05708598517
Buen trato: comprar del vendedor
Por favor, lea nuestras condiciones de uso. También puede visitar nuestras preguntas frecuentes y ver nuestra información sobre los riesgos relacionados con la falsificación.
|
Esta página es acerca de los importadores y exportadores de Octamethylcyclotetrasiloxane (D4) Buscar en la categoria : Mayoristas / proveedores Buscar en la categoria : octamethylcyclotetrasiloxane |
518103 ConstrucciónReportar abuso
Saturday 02 April 2016
We are the first patented waterproof LED Corn light in China. LED Replacement Lamps for Metal Halide / High Pressure Sodium/High Intensity Discharge/CFL Material Private mode 6063 Aluminum thermal structure; High quality aluminum processing technique; Special su rface treatment process...
Shenzhen snuoer technology Co., LTD
- 518103 - shenzhen
- +86 755 18682173476
75001 Bienes de equipoReportar abuso
Wednesday 06 August 2014
Type: Concassage tertiaire Taille d＇alimentation: 0 –50 mm Matériel à traiter: minerai de fer, minerai de cuivre, minerai d'or, minerai de manganèse, minerai de zinc, gravier de rivière, gravier, calcaire，gangue de charbon, quartz，basalte. Applications: béton bitumineux, sable...
Henan Liming Heavy Industry Science & Technology Co.
- 75001 - paris
- 08 63 72 12 34
50100 Varios / DescuentoReportar abuso
Tuesday 14 April 2026
Cantidad : 80000 Ream - Precio : $0.79/Ream for 8000
ESPECIFICACIONES Papel Paperone Copia A4 80 gr Características de papel A4 Una copia en papel 80 gr: Sustancia G / M2 80 + - 2,5 - Sustancias Variación Cd - Espesor Cd Diferencia% igual a / Por debajo de 10 - Brillo% 100-102 - Opacidad% igual a / Abajo 90 - Breaking longitud...
NATH LAOH LTD
- 50100 - Chiang Mai
- +66 9 95 35 59 56
