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Identifiers | |||
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3D model (JSmol)
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1633463 | |||
ChemSpider | |||
ECHA InfoCard | 100.014.465 | ||
EC Number | 215-911-0 | ||
PubChem CID
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RTECS number | JM9170000 | ||
UN number | 1993 | ||
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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 |
255.89 J K−1 mol−1 (at 22.52 °C) | ||
Hazards | |||
GHS pictograms | |||
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
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Tetramethylsilane |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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what is ?) | (|||
Infobox references | |||
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.