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 .
Contact : Cheng Doris, 05708598517
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
|
This page is about importers and exporters of Octamethylcyclotetrasiloxane (D4) Search in a category : Stock lots Search in a category : octamethylcyclotetrasiloxane |
10300 ClothesReport abuse
Tuesday, April 28, 2026
Price : 12,90 €
Soccer jersey with shorts Official MANCHESTER UNITED All models Clubs Foreigners available on our website. Sold for professional € 12.90 / pcs per 36 pieces in carton mixture of sizes and clubs possible. This price is for 36 pcs, non-negotiable for this quantity, the price is...
Bkk-sport Ltd
- Bkk-Sport
- 10300 - Bangkok
- via le site
- www bkk sport com
FoodReport abuse
Monday, April 29, 2013
Quantity : 27T - Price : 0$
Halieutic products and fish we are a company(society) based in Senegal specialized in the sale of fresh(cool) and frozen fishes; halieutic products have the export we let us look for customers interested in fishes available on Senegal, we can supply by 27 ton container or by hundreds...
Gie Ashram Global Services
- ashramgs
- - Dakar
- 779864137
- 775598281
5070 CraftReport abuse
Sunday, March 15, 2015
Matériel: Coton 100% Utilisation: Maison, Hôtel, Sports, cuisine, Plage, Avion, Cadeau,Sac, literie, doublure, textile à la maison, canapé Point d'origine: La Tunisie 100% coton: serviette de hammam Type d'alimentation: Faire- à- commande couleures: tout les couleures disponibles Taille...
fouta zaguia
- 5070 - KSAR HELAL
- 58153745
- +21 6 58 15 37 45
