Names | |
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Preferred IUPAC name
Magnesium silicide | |
Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.041.125 |
EC Number |
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PubChem CID
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UNII | |
UN number | 2624 |
CompTox Dashboard (EPA)
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Properties | |
Mg2Si | |
Molar mass | 76.695 g·mol−1 |
Appearance | Gray cubic crystals[1] |
Density | 1.99 g cm−3[1] |
Melting point | 1,102 °C (2,016 °F; 1,375 K)[1] |
reacts[1] | |
Structure[2] | |
Antifluorite (cubic), cF12 | |
Fm3m, #225 | |
a = 0.6351 nm
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Formula units (Z)
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4 |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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reacts with water to produce pyrophoric silane |
GHS labelling: | |
Warning | |
H261 | |
P231+P232, P280, P370+P378, P402+P404, P501 | |
Related compounds | |
Other cations
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Calcium silicide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Magnesium silicide, Mg2Si, is an inorganic compound consisting of magnesium and silicon. As-grown Mg2Si usually forms black crystals; they are semiconductors with n-type conductivity and have potential applications in thermoelectric generators.[3]
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