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 |
M15 4PZ FoodReport abuse
Thursday, April 28, 2016
We are offering the following products at very competitive rates and on most safe & secure business terms. So only genuine & serious Buyers who want to avail of our special offer, are welcome to send us their inquiry. But only those inquiries which give full details of the requirement...
Sun Link Global Enterprise
- sunlinkglobal
- M15 4PZ - Manchester
- +44 7024041424
5070 CraftReport abuse
Tuesday, April 14, 2026
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
999077 Audio and VideoReport abuse
Thursday, August 01, 2013
Quantity : moq:1pcs - Price : USD196.6
Compact and Slim Design Weighing Less than 6oz / 162g Filled with versatile functions, this stylish, compact body is fun and easy to carry around. The unique grip form minimizes shooting fatigue. Shooting is stable because you can easily hold the HX-DC3 with one hand. Stunning...
AC Electronic Ltd
- 999077 - HongKong
- +85 2 23 25 18 67
- +86 13501567844
