Tetrabromoethylene

Tetrabromoethylene is a brominated derivative of ethylene. Tetrabromoethylene is a potential fungicide and bactericide on fruits. It was used in mineral separation.

Tetrabromoethylene
Names
Preferred IUPAC name
Tetrabromoethene
Other names
Perbromoethene
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.001.084
EC Number
  • 201-192-0
UNII
  • InChI=1S/C2Br4/c3-1(4)2(5)6 N
    Key: OVRRJBSHBOXFQE-UHFFFAOYSA-N N
  • InChI=1/C2Br4/c3-1(4)2(5)6
    Key: OVRRJBSHBOXFQE-UHFFFAOYAE
  • Br(Br)C=CBr(Br)
Properties
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)
-114.8·10−6 cm3/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

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.

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