Identifiers | |
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3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.031.430 |
EC Number |
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PubChem CID
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UN number | 1405 |
CompTox Dashboard (EPA)
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Properties | |
CaSi | |
Molar mass | 68.164 g/mol[1] |
Density | 2.39 g/cm3[1] |
Melting point | 1,324 °C (2,415 °F; 1,597 K)[1] |
Structure[2] | |
Orthorhombic, oS8, | |
Cmcm, No. 63 | |
a = 0.4545 nm, b = 1.0728 nm, c = 0.389 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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Flammable gas with water |
GHS labelling: | |
Warning | |
H261 | |
P231+P232, P280, P370+P378, P402+P404, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Calcium monosilicide (CaSi) is an inorganic compound, a silicide of calcium. It can be prepared by reacting elemental calcium and silicon at temperatures above 1000 °C.[3] It is a Zintl phase, where silicon has oxidation state −2 and covalence 2.