865811-55-8

865811-55-8 - Names and Identifiers

Name	tris(dimethylsilyl) ethyl orthosilicate
Synonyms	Trisdimethylsiloxyethoxysilane Tris(dimethylsiloxy)ethoxysilane TRIS(DIMETHYLSILOXY)ETHOXYSILANE tris(dimethylsilyl) ethyl orthosilicate TRIS(DIMETHYLSILOXY)ETHOXYSILANE, tech-95 Trisiloxane, 3-[(dimethylsilyl)oxy]-3-ethoxy-1,1,5,5-tetramethyl-
CAS	865811-55-8
InChI	InChI=1/C8H26O4Si4/c1-8-9-16(10-13(2)3,11-14(4)5)12-15(6)7/h13-15H,8H2,1-7H3

865811-55-8 - Physico-chemical Properties

Molecular Formula	C8H26O4Si4
Molar Mass	298.63
Density	0,834 g/cm3
Boling Point	108-109°C 40mm
Flash Point	83.3°C
Vapor Presure	0.23mmHg at 25°C
Specific Gravity	0.834
Sensitive	7: reacts slowly with moisture/water
Refractive Index	1.5875

865811-55-8 - Risk and Safety

TSCA

865811-55-8 - Introduction

Tris (dimethylsilyl) ethyl orthosilicate, also known as tris(dimethylsilyl) ethyl orthosilicate, abbreviated as TDMSEO, is an organosilicon compound. Its chemical formula is (C2H5O)3Si(CH3)2Si(Si(CH3)2OC2H5)3.

Nature:
TDMSEO is a colorless or slightly yellow liquid with low viscosity and low volatility. It is soluble in alcohols, ethers and hydrocarbon solvents, but insoluble in water.

Use:
TDMSEO is mainly used for synthetic silicone materials, such as silicone, silicone rubber, silicone, etc. It can be used as a crosslinking agent and a hardener for the preparation of high-strength silicone polymers. In addition, TDMSEO is also commonly used in the preparation of surface coatings, electronic materials and optical glass.

Preparation Method:
TDMSEO can be prepared by the reaction of dimethylsiloxane and ethylchlorosilane under alkaline conditions. The specific synthesis method can be optimized according to the needs and experimental conditions.

Safety Information:
TDMSEO is a low-toxicity compound under general conditions of use. However, as a chemical, certain safety procedures should still be followed. Avoid direct contact with skin and eyes, avoid inhaling its vapor or mist. Wear appropriate personal protective equipment such as goggles, gloves and protective clothing. Reactions with oxidants and strong acids should be avoided during storage and handling. It is recommended to operate in a well-ventilated area and ensure that emergency treatment devices and corresponding first aid measures are available.

Last Update：2024-04-10 22:29:15