Tetrabromoethylene

Tetrabromoethylene
Names
	Preferred IUPAC name Tetrabromoethene
	Other names Perbromoethene
Identifiers
CAS Number	79-28-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	59617 ;
ECHA InfoCard	100.001.084
EC Number	201-192-0;
PubChem CID	66232;
UNII	T686675W6X ;
CompTox Dashboard (EPA)	DTXSID8058821 ;
	InChI InChI=1S/C2Br4/c3-1(4)2(5)6 Key: OVRRJBSHBOXFQE-UHFFFAOYSA-N ; InChI=1/C2Br4/c3-1(4)2(5)6 Key: OVRRJBSHBOXFQE-UHFFFAOYAE;
	SMILES Br(Br)C=CBr(Br);
Properties
Chemical formula	C2Br4
Molar mass	343.638 g·mol−1
Appearance	Colorless crystal
Melting point	50 °C (122 °F; 323 K)
Boiling point	226 °C (439 °F; 499 K)
Magnetic susceptibility (χ)	−114.8·10−6 cm3/mol
Related compounds
Related compounds	Ethylene; Bromoethylene; 1,1-Dibromoethylene; 1,2-Dibromoethylene; Tribromoethylene; Tetrafluoroethylene; Tetrachloroethylene; Tetraiodoethylene; Tetrabromomethane; Hexabromoethane;
	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

Tetrabromoethylene is an organobromine compound with the chemical formula C₂Br₄. Its structure is Br₂C=CBr₂. Under standard conditions, it exists in a form of colorless crystals. It is a brominated derivative of ethylene. Tetrabromoethylene is a potential fungicide and bactericide on fruits. It was used in mineral separation. It is an irritant.

It is prepared from acetylene and bromine in multiple steps. One method involves dehydrobromination of pentabromoethane, other method involves bromination of dibromoethylene in chloroform. Reaction of mercuric acetylide and bromine also gives tetrabromoethylene. It can be produced by oxybrominating butane with free oxygen and bromine.

Tetrabromoethylene gives tribromoacetyl bromide upon treatment with fuming nitric acid.