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The synthesis of 18O multilabeled anhydrous nitric acid

✍ Scribed by A. C. Scott; J. H. McReynolds; M. Anbar

Publisher
John Wiley and Sons
Year
1976
Tongue
French
Weight
170 KB
Volume
12
Category
Article
ISSN
0022-2135

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✦ Synopsis

Abstract

^18^O‐multilabeled anhydrous nitric acid (89 atom % ^18^O) was prepared by exchange with H~2~^18^O, neutralization with NH~3~, and distillation from methane sulfonic acid. The use of trifluoromethane sulfonic acid, sulfuric acid, and oleum was also investigated, but these acids were found unsuitable due to rapid oxygen exchange. The extent of exchange was. monitored by converting water to methanol, nitric acid to nitroanisole, and analyzing by field ionization mass spectrometry.

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