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1,1,1,3,3,3-HEXAMETHYL DISILAZANE For Synthesis

HMDS, Bis–(trimethylsilyl) amine


100 ml (00100)

500 ml (00500)

2500 ml (02500)

2500 ml (02500)

1GBA000120 2GBA000500 2GBAG02500 2GBAH02500
Article No. 04047 Grade For Synthesis
Purity 98% CAS No. 999-97-3
Molecular Formula C6H19NSi2 Molecular Weight 161.41
H.S. Code 2931.9090 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%


Appearance A clear colourless liquid Purity (by GC) Min 98%
Density (d20°C/4°C) 0.774 - 0.775

Safety Information and Hazard Symbols

Skull and Crossbones Flame Corrosion
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
Revision Date: 18-Dec-2013

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