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Names | |||
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Preferred IUPAC name
Hexamethyldisilane | |||
Identifiers | |||
3D model (JSmol)
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1633463 | |||
ChemSpider | |||
ECHA InfoCard | 100.014.465 | ||
EC Number |
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PubChem CID
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RTECS number |
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UNII | |||
UN number | 1993 | ||
CompTox Dashboard (EPA)
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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 | ||
Refractive index (nD)
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1.422 | ||
Thermochemistry | |||
Std molar
entropy (S⦵298) |
255.89 J K−1 mol−1 (at 22.52 °C) | ||
Hazards | |||
GHS labelling: | |||
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Danger | |||
H225, H319, H334, H335 | |||
P210, P261, P305+P351+P338, P342+P311 | |||
Flash point | 11 °C (52 °F; 284 K) | ||
Related compounds | |||
Related alkylsilanes
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Tetramethylsilane | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Hexamethyldisilane (TMS2) is the organosilicon compound with the formula Si2(CH3)6, abbreviated Si2Me6. It is a colourless liquid, soluble in organic solvents.[1]