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Application of inert radioactive gases in the study of solids

Part 2 Thermal decomposition of various iron salts and preparation of α-Fe2O3 in its active state

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Abstract

The behaviour of different iron salts (FeSO4.7 H2O, FeC2O4.2 H2O, Mohr's salt, and basic iron carbonate) was studied by means of the emanation method, DTA and dilatometry. The salts were heated within the temperature range of 20 to 1100‡ C, under identical conditions. The results obtained are compared and the process of thermal decomposition of the different salts is discussed.

The “activity” of ferric oxide obtained by decomposition of various iron salts is estimated, and it is suggested that the low “activity” of the sulphate-derived ferric oxides is related to a low thermal annealing rate, while the higher “activities” of the other two resultant ferric oxides are similarly related to higher thermal annealing rates.

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Balek, V. Application of inert radioactive gases in the study of solids. J Mater Sci 5, 166–170 (1970). https://doi.org/10.1007/BF00554635

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Keywords

  • Oxide
  • Iron
  • Polymer
  • Thermal Decomposition
  • Identical Condition