Thermal Decomposition of Ammonium Salts of Transition Metal Oxyacids. II. The Determination of the Gas Constituents Evolved by Ammonium Paramolybdate Decomposition

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概要

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• Gases evolved by the decomposition of ammonium paramolybdate tetrahydrate have been analyzed by means of an omegatron mass spectrometer. Only water molecules of the hydration were eliminated during the first stage of decomposition, and the final stage was not the elimination reaction of ammonia but the oxidation reaction of ammonia by Mo(VI) oxide. Between 150 and 250°C, ammonia and water were evolved in a mole ratio of roughly 2:1, corresponding to the elimination of (NH<SUB>4</SUB>)<SUB>2</SUB>O. However, the range is not clear because of the overlap of the elimination of water at the lower limit and that of nitrogen at the upper limit. At higher temperatures, a small amount of NO was observed.

• 公益社団法人 日本化学会の論文

著者

• Park Il-hyun

  Department Of Biochemistry Chungnam National University

• Park Il-Hyun

  Department of Chemistry, Faculty of Science, Kyoto University

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• Thermal Decomposition of Ammonium Salts of Transition Metal Oxyacids. I. Thermogravimetric Analysis of Ammonium Paramolybdate
• Thermal Decomposition of Ammonium Salts of Transition Metal Oxyacids. II. The Determination of the Gas Constituents Evolved by Ammonium Paramolybdate Decomposition

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