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1,1,1,3,3,3-Hexamethyldisilazane 98% For Synthesis
HMDS, Bis–(trimethylsilyl) amine ; 1,1,1,3,3,3-HEXAMETHYL DISILAZANE

Product Code.
01342
Grade
For Synthesis
Purity
98%
CAS No.
999-97-3
Molecular Formula
C6H19NSi2
Molecular Weight
161.41
H.S.Code
2931.90900
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Liquid
Colour
Clear Colorless
Odour
Ammonia odour
pH value
8.5
Melting point/ Freezing point [°C]
-80 °C
Auto-ignition temperature [°C]
380°C
Flammability (solid, gas)
Flammable
Flash point [°C]
11 °C
Boiling point [°C]
125 °C
Evaporation rate
< 1
Vapour pressure [20°C]
20 hPa at 20°C
Vapour density
4.6
Density [g/cm3]
0.77
Solubility in water [% weight]
Insoluble in water
Partition coefficient Log Pow octanol / water at 20°C
2.62
Explosion limits - upper [%]
16.30%
Explosion limits -lower [%]
0.80%

Packaging

Specification

Appearance
A clear colorless liquid
Purity (by GC)
Min 98.0%
Density (d20°C/4°C)
0.774 - 0.775 g/ml

Safety Information and Hazard Symbols

Symbol: GHS02, GHS05, GHS06
Signal Word: Danger
UN No.: 3286
IMCO Class No.: 3,6.1,8
Packing Group: II
Hazardous Statement: H225-H302-H311-H314-H331-H412
Precaution Statement: P210-P261-P273-P280-P305 + P351 + P338-P310