1,1,1,3,3,3-HEXAMETHYL DISILAZANE

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

HMDS, Bis–(trimethylsilyl) amine

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

MSDS

Certificate of Analysis (COAs)

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%

Packings

100 ml (00100)
500 ml (00500)
2500 ml (02500)
2500 ml (02500)

Specifications

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

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

Revision Date : 18-Dec-2013

Resources