Zinc dust distillation
The zinc dust distillation is in the chemical procedure for the reduction of phenols and other compounds of the type aryl -OH to their parent hydrocarbons aryl-H.
The method was developed by Adolf von Baeyer (1835–1917) in connection with the elucidation of the structure of indigo :
The zinc dust distillation was useful in the elucidation of the constitution of many other natural substances.
execution
The phenol in question is distilled in a stream of hydrogen over zinc dust that has been heated to red heat. The oxygen in the phenol will "probably" be intercepted by the zinc as zinc oxide .
Individual evidence
- ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 6: T-Z. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1988, ISBN 3-440-04516-1 , p. 4713.
- ↑ Bernd Schäfer: Natural substances in the chemical industry . Spektrum Akademischer Verlag, 2007, ISBN 978-3-8274-1614-8 , p. 19.
- ^ Brockhaus ABC chemistry . VEB FA Brockhaus Verlag, Leipzig 1965, p. 1564.