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HEXAMETHYL DISILOXANE For Synthesis

HMDSO

COAs

Packings

100 ml (00100)

500 ml (00500)

2500 ml (02500)

2500 ml (02500)

1GBA000120 2GBA000500 2GBAG02500 2GBAH02500
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Article No. 04048 Grade For Synthesis
Purity 99% CAS No. 107-46-0
Molecular Formula (CH3)3SiOSi(CH3)3 Molecular Weight 162.38
H.S. Code 2931.9090 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Liquid Colour Clear Colorless
Melting point/ Freezing point [°C] -59 °C Flammability (solid, gas) Flammable
Flash point [°C] -1°C Boiling point [°C] 101 °C
Vapour pressure [20°C] 44 hPa at 20 °C Vapour density 5.61
Density [g/cm3] 0.764 Relative density, liquid (water=1) 0.764
Solubility in water [% weight] Insoluble in water Partition coefficient Log Pow octanol / water at 20°C 4.2
Viscosity at 40°C [mm2/s] 0.5 mPa @ 25 deg C Explosion limits - upper [%] 21.80%
Explosion limits -lower [%] 0.50%

Specifications

Appearance A clear colourless liquid Purity (by GC) Min 99%
Refractive index (20°C; 589 nm) About 1.378 Density (d20°C/4°C) 0.761-0.763g

Safety Information and Hazard Symbols

Flame Environment
Symbol: GHS02, GHS09
 Signal Word: Danger
 UN No.: 1993
 IMCO Class No.: 3
 Packing Group: II
 Hazardous Statement: H225-H411
 Precaution Statement: P210-P273
Revision Date: 28-May-2025

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