Chromium(II) silicide
Chromium(II) silicide or chromium disilicide is an inorganic compound of chromium and silicon. Its chemical formula is CrSi2. It is a p-type thermoelectric semiconductor with an indirect bandgap of 0.35 eV.
| Names | |
|---|---|
| IUPAC name
Chromium(2+) silicide | |
| Identifiers | |
3D model (JSmol) |
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| ECHA InfoCard | 100.031.472 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| CrSi2 | |
| Molar mass | 108.167 g/mol |
| Appearance | white powder |
| Odor | odorless |
| Density | 4.91 g/cm3 |
| Melting point | 1,490 °C (2,710 °F; 1,760 K) |
| insoluble | |
| Band gap | 0.35 eV (indirect) |
| -0.5×10−6 emu/g | |
| Structure | |
| Hexagonal, hP9 | |
| P6222, No. 180 | |
a = 0.44268 nm, c = 0.63751 nm | |
Formula units (Z) |
3 |
| Hazards | |
| NIOSH (US health exposure limits): | |
PEL (Permissible) |
TWA 1 mg/m3 |
REL (Recommended) |
TWA 0.5 mg/m3 |
IDLH (Immediate danger) |
250 mg/m3 |
| Related compounds | |
Other cations |
Molybdenum disilicide Tungsten disilicide |
Related compounds |
Chromium(IV) silicide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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