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 |
334 Bienes de equipoReportar abuso
Jueves 16 mayo 2024
Automatic Gear Pump Liquid Filling Machine FP-465 is designed and engineered to produce outstanding quality and precision filling suitable for various products like shampoo, hot sauce, lubricant oil etc. FP-465 can also replace piston or peristaltic module for the flexibility of filling demands...
Autopack Co.,Ltd
- autopacker
- 33454 - Taoyuan City
- +88 6 33 68 98 06
59590 B2B ServiciosReportar abuso
Miércoles 14 septiembre 2016
Cantidad : 5000 - Precio : 100,00 €
Bellows Seal Stop Valves (Angle Type) DIN Angle Type Bellows Sealed Stop Valve DIN Bellows Seal Globe Valve DIN Faltenbalgventil Eckform DIN Válvulas de fuelle（Paso angular.） DIN ventil uzavírací s vlnovcem rohový DIN Standard seteventil med belg (Vinkel modell) DIN Standardında...
ETM Armaturen
- 59590 - Henri Durre
- 86 577 67953935
051530 Materias primerasReportar abuso
Viernes 06 febrero 2015
Cantidad : 100MT/Mont
Chemical Name： (S)-2,6-Diaminohexanoic acid monohydrochloride~H-Lys-OH.HCl Structure Formula： Molecular Formula： C6H14N2O2.HCl Molecular Weight： 182.65 Cas No： [657-27-2] Characteristics： A white or nearly white free-flowing crystalline powder, practically odorless...
Zhaocounty Granray Bioproducts Co.,Ltd
- 051530 - NanBaiShe
- 8631180826581
