Bromine monochloride
Bromine monochloride, also called
bromine(I) chloride,
bromochloride, and
bromine chloride, is an
interhalogen inorganic compound with chemical formula
BrCl. It is an unstable red-brown gas with boiling point 5°C and melting point -66 °C. Its
CAS number is and its
EINECS number is 237-601-4. [
1] It is a strong oxidizing agent.
Bromine monochloride is used in analytical chemistry in determining low levels of
mercury, to quantitatively oxidize mercury in the sample to Hg(II) state.
Bromine monochloride is used as a
biocide, specifically as an
algaecide,
fungicide, and
disinfectant, namely in industrial recirculating cooling water systems. It is the active ingredient of eg. Stabrom 909 biocide. [
2]
Addition of bromine monochloride is used in some types of
Li-SO2 batteries to increase voltage and energy density.