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A re-investigation of the thermal decomposition of ammonium paratungstate

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Abstract

The thermal decomposition of monoclinic ammonium paratungstate (APT) and amorphous ammonium metatungstate (AMT) has been studied over the temperature range 20 to 500° C using thermogravimetry, evolved gas analysis, X-ray diffraction analysis, differential thermal analysis and scanning electron microscopy. A mechanism of decomposition which postulates the formation and subsequent decomposition of various lower ratio tungstates is proposed and substantiated by the experimental data.

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Authors and Affiliations

  1. Metallurgy Department, University of Manchester, Manchester, UK

    G. J. French & F. R. Sale

Authors
  1. G. J. French
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  2. F. R. Sale
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French, G.J., Sale, F.R. A re-investigation of the thermal decomposition of ammonium paratungstate. J Mater Sci 16, 3427–3436 (1981). https://doi.org/10.1007/BF00586305

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  • DOI: https://doi.org/10.1007/BF00586305

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