title: A method for the simultaneous detection of hydrogen fluoride and fluorine.
abstract: A relatively simple and rapid method for detecting hydrogen fluoride and elemental fluorine is described. A solution containing sodium bicarbonate and potassium bromide is treated with the gas. Hydrogen fluoride immediately liberates carbon dioxide from the bicarbonate; elemental fluorine immediately colours the solution and then causes the evolution of oxygen, hydrogen peroxide and hydrogen fluoride. A mixture of fluorine and hydrogen fluoride simultaneously colours the solution and evolves carbon dioxide.
authors.affiliation: Department of Chemistry University of Aberdeen Old AberdeenScotland.
authors.forename: J G
authors.initials: JG
authors.lastname: Knowles
authors.forename: J H
authors.initials: JH
authors.lastname: Holloway