Silicon monoxide

Silicon monoxide
Names
	Preferred IUPAC name Silicon monoxide
Identifiers
CAS Number	10097-28-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30588 ;
ChemSpider	59626 ;
ECHA InfoCard	100.030.198
EC Number	233-232-8;
Gmelin Reference	382
MeSH	Silicon+monoxide
PubChem CID	66241;
UNII	1OQN9CBG7L ;
CompTox Dashboard (EPA)	DTXSID7064940 ;
	InChI InChI=1S/H3OSi/c1-2/h2H3 Key: UXMAWJKSGBRJKV-UHFFFAOYSA-N ; InChI=1/OSi/c1-2 Key: LIVNPJMFVYWSIS-UHFFFAOYAO; InChI=1S/OSi/c1-2 Key: LIVNPJMFVYWSIS-UHFFFAOYSA-N;
	SMILES [O+]#[Si-];
Properties
Chemical formula	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)
Solubility in water	insoluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
NFPA 704 (fire diamond)	1 0 0
Flash point	Non-flammable
Related compounds
Other anions	Silicon sulfide; Silicon selenide; Silicon telluride
Other cations	Carbon monoxide; Germanium(II) oxide; Tin(II) oxide; Lead(II) oxide
Related silicon oxides	Silicon dioxide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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. It has been detected in stellar objects and has been described as the most common oxide of silicon in the universe.