Names | |
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Preferred IUPAC name
Silicon monoxide | |
Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.030.198 |
EC Number |
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382 | |
MeSH | Silicon+monoxide |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
SiO | |
Molar mass | 44.08 g/mol |
Appearance | brown-black glassy solid |
Density | 2.13 g/cm3 |
Melting point | 1,702 °C (3,096 °F; 1,975 K) |
Boiling point | 1,880 °C (3,420 °F; 2,150 K) |
insoluble | |
Hazards | |
NFPA 704 (fire diamond) | |
Flash point | Non-flammable |
Related compounds | |
Other anions
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Silicon sulfide Silicon selenide Silicon telluride |
Other cations
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Carbon monoxide Germanium(II) oxide Tin(II) oxide Lead(II) oxide |
Silicon dioxide | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Silicon monoxide is the chemical compound with the formula SiO where silicon is present in the oxidation state +2. In the vapour phase, it is a diatomic molecule.[1] It has been detected in stellar objects[2] and has been described as the most common oxide of silicon in the universe.[3]