Carbonyl bromide

Carbonyl bromide
Names
	Preferred IUPAC name Carbonyl dibromide
	Other names Bromophosgene, carbonic dibromide
Identifiers
CAS Number	593-95-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	71389 ;
PubChem CID	79057;
UNII	MNU12QTS1I ;
CompTox Dashboard (EPA)	DTXSID20208041 ;
	InChI InChI=1S/CBr2O/c2-1(3)4 Key: MOIPGXQKZSZOQX-UHFFFAOYSA-N ; InChI=1/CBr2O/c2-1(3)4 Key: MOIPGXQKZSZOQX-UHFFFAOYAM;
	SMILES BrC(Br)=O;
Properties
Chemical formula	COBr2
Molar mass	187.818 g·mol−1
Appearance	colorless liquid
Density	2.52 g/mL at 15 °C
Boiling point	64.5 °C (148.1 °F; 337.6 K) decomposes
Solubility in water	reacts
Thermochemistry
Heat capacity (C)	61.8 J/(mol·K) (gas)
Std molar; entropy (S⦵298)	309.1 J/(mol·K) (gas)
Std enthalpy of; formation (ΔfH⦵298)	−127.2 or −145.2 kJ/mol (liquid); −96.2 or −114 kJ/mol (gas)
Hazards
NFPA 704 (fire diamond)	4 0 1
Related compounds
Related compounds	Carbonyl fluoride ; Phosgene
	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

Carbonyl bromide, also known as bromophosgene, is a carbon oxohalide and a bromine analogue of phosgene, with the chemical formula COBr₂. It is a colorless liquid. Carbonyl bromide is a decomposition product of halon compounds used in fire extinguishers.