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Hexamethyldisilane

Hexamethyldisilane
Skeletal formula of hexamethyldisilane
Ball-and-stick model
Space-filling model
Identifiers
3D model (JSmol)
1633463
ChemSpider
ECHA InfoCard 100.014.465
EC Number 215-911-0
PubChem CID
RTECS number JM9170000
UN number 1993
Properties
Si2C6H18
Molar mass 146.39 g mol−1
Appearance Colourless liquid
Density 0.715 g/cm3
Melting point 14 °C; 57 °F; 287 K
Boiling point 113 °C; 235 °F; 386 K
1.422
Thermochemistry
255.89 J K−1 mol−1 (at 22.52 °C)
Hazards
GHS pictograms The flame pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word DANGER
H225, H319, H334, H335
P210, P261, P305+351+338, P342+311
Flash point 11 °C (52 °F; 284 K)
Related compounds
Related alkylsilanes
Tetramethylsilane

Triethylsilane

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Triethylsilane

Hexamethyldisilane is the organosilicon compound with the formula Si2(CH3)6, abbreviated Si2Me6. It is a colourless liquid, soluble in organic solvents.

The Si-Si bond in hexamethyldisilane is cleaved by strong nucleophiles and electrophiles. Alkyl lithium compounds react as follows:

Iodine gives trimethylsilyl iodide.


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