pyrotechnics-revived/chapters/99-1-chemical-hexachloroben...

596 B

Hexachlorobenzene

Formula

C6Cl6

Pyrotechnics use

Chlorine donor

Synonyms

HCB

Description

Hexachlorobenzene (HCB) has been used as a powerful chlorine donor in colour compositions. It is soluble in diethyl ether, benzene, ethanol and chloroform. It can not serve as a binder.

Sources

The use of HCB must be avoided.

Hazards

HCB is very toxic to aquatic organisms and it may cause long term adverse effects in the aquatic environment. Hexachlorobenzene has a half life in the soil of between 3 and 6 years. Biomagnification up the food chain does occur.