Jump to main content
Jump to site search

Issue 0, 1967
Previous Article Next Article

The heats of formation of fluoro- and chloro-sulphuric acids and their thermodynamic stabilities

Abstract

The heat of formation of fluorosulphuric acid determined by mixing sulphur trioxide with excess of hydrogen fluoride in fluorosulphuric acid was 189·4 ± 0·6 kcal./mole at 25°. The heat of formation of chlorosulphuric acid determined by hydrolysing the acid was 142·9 ± 0·4 kcal./mole. The reaction of hydrogen chloride with excess of sulphur trioxide in fluorosulphuric acid yielded a confirmatory value of 143·5 ± 0·6 kcal./mole. The heats are combined with free energy functions to calculate the possible dissociation of the acids and these are compared with experiment.

Back to tab navigation

Article type: Paper
DOI: 10.1039/J19670001118
J. Chem. Soc. A, 1967, 1118-1121

  •   Request permissions

    The heats of formation of fluoro- and chloro-sulphuric acids and their thermodynamic stabilities

    G. W. Richards and A. A. Woolf, J. Chem. Soc. A, 1967, 1118
    DOI: 10.1039/J19670001118

Search articles by author

Spotlight

Advertisements