The catalytic reduction of nitric oxide

Inorganic chemistry

“…Several complex salts derived from potassium manganese (cobalt or zinc) double oxalates by replacement of C20, groups by (NO,),, (CNS),, or S203 have been described. 54 From an examination of the system iodine-potassium iodide, it is concluded that neither the tri-iodide nor any other polyiodide of potassium can exist as stable solid above 25".s5 I n the case of cesium, the tetraiodide and the tri-iodide can separate either from melts or from aqueous solutions, but the pentaiodide does not exist . 56 German carnallite contains, on the average, 0.02% of rubidium chloride and 0 ~0 0 0 2 ~0 of cesium chloride, and full details have been published 57 of a comparatively rapid and simple method by which practically the whole of this can be recovered in a high state of purity.…”

“…It can also be obtained by burning oxygen in ammonia.53 Reduction of nitric oxide by platinised platinum in dilute hydrochloric acid produces small amounts of hydroxylamine and ammonia. 54 An investigation of the oxidation of phosphorus by oxygen and by air, both alone and in presence of moisture and of substances inhibiting phosphorescence, has led to the conclusion that the oxidation has its seat in the gas phase and is autocatalysed by atomic oxygen.57…”

Ammonia Formation in the Nitric Oxide-Methane Reaction

“…On the other hand, Anderson, et al (1961), and Jaros and Krizek (1967) detected ammonia using methane over noble metal supported catalysts. Other minor products that have been reported in past investigations using both methane and hydrogen include hydroxvlamine and hydrocyanic acid (Butterworth and Partington, 1930). Carbon dioxide and water are important products when methane is used as a reducing gas with only traces of carbon monoxide being reported.…”