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Topic summary

Hexachlorobenzene

Hexachlorobenzene
Names Preferred IUPAC name
Hexachlorobenzene
Other names
Perchlorobenzene; HCB; Julin's chloride of carbon
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.886KEGG
UNII
  • InChI=1S/C6Cl6/c7-1-2(8)4(10)6(12)5(11)3(1)9
    Key: CKAPSXZOOQJIBF-UHFFFAOYSA-N
  • InChI=1/C6Cl6/c7-1-2(8)4(10)6(12)5(11)3(1)9
    Key: CKAPSXZOOQJIBF-UHFFFAOYAV
  • c1(Cl)c(Cl)c(Cl)c(Cl)c(Cl)c1Cl
Properties C6Cl6Molar mass284.77 g·mol Appearance White crystalline solid Density2.04 g/cm Melting point228.83 °C (443.89 °F; 501.98 K) Boiling point325 °C (617 °F; 598 K) insoluble Solubility in other solvents slightly soluble in ethanol; soluble in diethyl ether and chloroform; very soluble in benzenelog P5.47 −147.0·10 cm/mol Thermochemistry 201.2 J·mol·K 260.2 J·mol·K −127.6 kJ·mol 25.2 kJ·mol Related compounds
Related compounds
Benzene
Hexafluorobenzene
Hexabromobenzene
Hexaiodobenzene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Hexachlorobenzene, or perchlorobenzene, is an aryl chloride and a six-substituted chlorobenzene with the molecular formula C6Cl6. It is a fungicide formerly used as a seed treatment, especially on wheat to control the fungal disease bunt. Its use has been banned globally under the Stockholm Convention on Persistent Organic Pollutants.

Wikipedia source