17928-27-7

Basic information

• Product Name: Tetrasiloxane, 3,5-diethyl-1,1,1,7,7,7-hexamethyl-
• CAS NO: 17928-27-7
• Molecular Formula: C10H30O3Si4
• Mol File: 17928-27-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Tetrasiloxane, 3,5-diethyl-1,1,1,7,7,7-hexamethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Tetrasiloxane, 3,5-diethyl-1,1,1,7,7,7-hexamethyl-(17928-27-7)
• EPA Substance Registry System: Tetrasiloxane, 3,5-diethyl-1,1,1,7,7,7-hexamethyl-(17928-27-7)

Safety Data

• Hazardous Substances Data: 17928-27-7(Hazardous Substances Data)

Upstream product

• 1789-58-8 ethyldichlorosilane 
• 107-46-0 Hexamethyldisiloxane 
• 75-77-4 chloro-trimethyl-silane 

Relevant articles and documents

FEATURES OF INFLUENCE OF HCl ON HYDROLYTIC COPOLYCONDENSATION OF BIFUNCTIONAL ORGANOCHLOROSILANES WITH TRIMETHYLCHLOROSILANE

The hydrogen chloride that is formed in the hydrolytic copolycondensation of R'RSiCl2 with Me3SiCl affects the composition of the reaction products only at cocentrations above 30-35percent, where it is responsible for splitting out the terminal trimethylsiloxy group.The stability of the terminal groups increases with increasing size of the substituents on the silicon atom in the R'RSiCl2.The total yield of Me3SiO(R'RSiO)mSiMe3 with m = 1-4 also increases with increasing size of the substituents on the silicon atom in the R'RSiCl2.The total yield of p with p = 3-5 increases with decreasing tendency of the R'RSiCl2 to form rings by hydrolytic polycondensation, and with increasing sensitivity of the terminal trimethylsiloxy group in the cocondensation products to the action of HCl and its activity with respect to the siloxane bond.