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1,1,1,3,3,3-HEXAMETHYLDISILAZANE with cas 999-97-3

what is  of  1,1,1,3,3,3-HEXAMETHYLDISILAZANE with cas 999-97-3?

Hexamethyldisilazane is a bulk organo silicon compound, being a quite useful silanizing agent. It is a reagent for the preparation of trimethylsilyl derivatives. It can be used for silanizing the surface of silicon water, cellulose. It can also be used to dehydrate cells of biomaterials for scanning electron microscopy (SEM). The hexamethyldisilazane coatings on various nanoparticles make them be resistant to water contamination and flocculation during synthesis. It can also be used as a modifier to control the shape, formation of agglomerates surface area and pore size of silica particles. Moreover, it is an adhesion promoter for photoresist in photolithography, and is also useful in the pyrolysis-gas chromatography-mass spectrometry to enhance the detectability of compounds with polar functional groups.

Quick Details of  1,1,1,3,3,3-HEXAMETHYLDISILAZANE with cas 999-97-3

CAS No.:999-97-3
Other Names:Hexamethyldisilazan
MF:C6H19NSi2, C6H19NSi2
EINECS No.:213-668-5
Place of Origin:Shandong, China
Type:Syntheses Material Intermediates
Model Number:HHPCH
Appearance:Colorless clear liquild, Colorless liquild
Product Name:Hexamethyldisilazan CAS:999-97-3

Specification of  1,1,1,3,3,3-HEXAMETHYLDISILAZANE with cas 999-97-3

Melting point -78 °C
Boiling point 125 °C (lit.)
density 0.774 g/mL at 25 °C(lit.)
vapor density 4.6 (vs air)
vapor pressure 20 hPa (20 °C)
refractive index n20/D 1.407(lit.)
Fp 57.2 °F
storage temp. Store below +30°C.
solubility Miscible with acetone, benzene, ethyl ether, heptane and perchloroethylene.
form Liquid
pka 30(at 25℃)
color Colorless
Specific Gravity 0.774
Odor Ammonia odour
PH Range 8.5
explosive limit 0.8-25.9%(V)
Water Solubility REACTS


200kgs/drum, 16tons/20’container


Deactivation of chromatographic support materials. In electronic industry as an adhesion promoter for photoresists on silicon.