Hundert Jahre Schweizer-Reagens

Summary Cuprammonia as a solvent for cellulose was discovered a hundred years ago byEduard Schweizer, Professor of Chemistry at the University of Zurich, and the heterogeneous swelling of plant fibres with this reagent was described in the same year byCarl Cramer, Professor of Botany at the Swiss Federal Institute of Technology then recently founded. Both discoveries were published in the Vierteljahrsschrift der Naturforschenden Gesellschaft Zürich 1857 and early 1858.