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 .
Personne à contacter : Cheng Doris, 05708598517
Bonne affaire : acheter au vendeur
Nous vous invitons à lire nos conditions générales d'utilisations. Vous pouvez aussi vous rendre sur nos FAQ et consulter notre page d'informations sur les risques liés à la contrefaçon.
|
Cette page concerne les importateurs et exportateurs de Octamethylcyclotetrasiloxane (D4) Rechercher dans la catégorie : Destockage Rechercher dans la catégorie : octamethylcyclotetrasiloxane |
Tuesday 25 November 2025
Nous sommes les principaux fournisseurs de boissons énergisantes comme Red Bull, requin, chargeur et bien d'autres.Nous pouvons également fournisseur can boissons comme Pepsi, Coca cola, Fanta, Sprite et autres produits.Nous fournissons également la meilleure qualité de l'eau minérale...
Vente en Gros
- 40400 - Kuala Lumpur
- +60 1 46 26 71 59
- +60 1 42 85 90 62
Wednesday 17 February 2016
Quantité : 1000MT - Prix : $1200/MT/ CIF
- Description - PTT dried fruit are 100% freeze-dried fruit, nothing else is added. Absolutely NO additives or preservatives - a natural, healthy, delicious fruit snack made from real fruit and packed with the same nutrition as fresh fruit. Our freeze dried fruit are perfectly...
KHUN JACK PARTNERSHIP LIMITED
- 50000 - CHIANG MAI
- +66 9 56 19 49 81
Tuesday 16 February 2016
Quantité : 1000 - Prix : 1500 USD/ MT CIF
We are a professional manufacture and exporter of dried apricot, raisin and goji berry, we can supply you dried apricot, brown raisin, golden raisin, green raisin and goji berry with high quality and competitive prices. We can do small pack and bulk pack as buyers' requirements,...
KHUN JACK PARTNERSHIP LIMITED
- 50000 - CHIANG MAI
- +66 9 56 19 49 81
Paiement sécurisé




