六甲基二硅氧烷

英文名稱Hexamethyldisiloxane

CAS號107-46-0

分子式C6H18OSi2

分子量162.38

EINECS號203-492-7

化學性質(zhì) 無色透明液體。 不溶于水，溶于多種有機溶劑。

用途 作為封頭劑、清洗劑、脫膜劑，主要用于有機化工及醫(yī)藥生產(chǎn)中。

Product Name:Hexamethyldisiloxane

Synonyms:oxybis(trimethyl-silan;Oxybis(trimethylsilane);HMDO

CAS:107-46-0

MF:C6H18OSi2

MW:162.38

EINECS:203-492-7

Melting point ?59 °C(lit.)

Boiling point 101 °C(lit.)

density 0.764 g/mL at 20 °C(lit.)

vapor density >1 (vs air)

vapor pressure 20 hPa (20 °C)

refractive index n20/D 1.377(lit.)

Fp 33 °F

solubility 0.00037g/l insoluble

form liquid

color Colorless to Almost colorless

UsesHexamethyldisiloxane can be used as silylating agent for carboxylic acids,

and alcohols; used in preparation of aroyl chlorides; precursor for a variety of

trimethylsilyl derivatives.Hexamethyldisiloxane has been used as an inexpensive

starting material for the preparation of numerous synthetically useful trimethylsilyl

derivatives.