| Identification | Back Directory | [Name]
Trisilane | [CAS]
7783-26-8 | [Synonyms]
Trisilane
Trisilicane
Silicopropane
Trisilicopropane
Trisilicon octahydride | [Molecular Formula]
H8Si3 | [MDL Number]
MFCD03701375 | [MOL File]
7783-26-8.mol | [Molecular Weight]
92.32 |
| Chemical Properties | Back Directory | [Melting point ]
-117.4° | [Boiling point ]
bp 52.9° | [density ]
d0 0.743 | [refractive index ]
1.4978 | [solubility ]
reacts with H2O | [form ]
flammable liquid | [color ]
flammable colorless liquid | [Specific Gravity]
0.7430 | [Water Solubility ]
decomposed by H2O [MER06] | [Hydrolytic Sensitivity]
10: reacts extremely rapidly with moisture and oxygen - may be pyrophoric - sealed system required | [EPA Substance Registry System]
Trisilane (7783-26-8) |
| Hazard Information | Back Directory | [Chemical Properties]
colorless liquid; enthalpy of vaporization 28.38 kJ/mol; vapor pressure at (0°C) 95mm Hg; critical temp 189°C; reacts vigorously with CCl4 and CHCl3 [CIC73] [CRC10] [MER06] | [Hazard]
Explodes on contact with air, reacts violently
with carbon tetrachloride and chloroform. |
| Questions And Answer | Back Directory | [Properties]
Colorless liquid; density 0.743 g/mL at 0°C; freezes at –117.4°C; boils at 52.9°C; vapor density 4.15 g/L at atmospheric pressure; decomposes in water; decomposes in carbon tetrachloride.
| [Description]
Silicon forms a series of hydrides known as silanes, formula SinH2n+2, where n is the number of silicon atoms in the molecule. This general formula for the silicon hydrides is similar to the CnH2n+2 for the alkane class of hydrocarbons.
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