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Hexamethyl Disilazane

Hexamethyl Disilazane / CAS : 999-97-3

Appearance Colorless, transparent and flowable liquid UN 3286
HS 29319000 DG Class 3
Synonyms HMDS; 1,1,1,3,3,3-Hexa-Methyldisilazane; Silanamine, 1,1,1-Trimethyl-N-(Trimethylsilyl)-; Hexamethyldisilazane; Hexamethyldisilazane(HMDS)
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Properties

Summary

Formula
C6H19NSi2
Molecular Mass
161.39300
Exact Mass
161.10600
PSA
12.03000
Logp
2.63670
IUPAC
[dimethyl-(trimethylsilylamino)silyl]methane
SMILES
C[Si](C)(C)N[Si](C)(C)C

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Intermediates
Surfactants, Catalysts > Other catalysts (surfactants)

Chemical and Physical Properties

Melting Point
-78 °C
Density
0.774 g/mL at 25 °C(lit.)
Boiling Point
125 °C(lit.)
Flash Point
57.2 °F
Appearance
Colorless, transparent and flowable liquid
Acidity and Basicity
alkalinity

Export information

HS Code
29319000
Export Rebate
13%
UN No.
3286
DG-Class
3
Risk Code
R11-20/21/22-34-52/53
Safety Label
F,C,Xn

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