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Study of the properties of indium hydroxide, and the separation of indium from zinc

  • E. N. Deichman
Article

Summary

  1. 1.

    A study was made of the solubility of indium hydroxide in sodium hydroxide solutions of various concentrations (0.1–8.0 M).

     
  2. 2.

    It was found that the solubility of indium hydroxide in concentrated NaOH solutions does not exceed 2·10−3 mole/liter.

     
  3. 3.

    It was shown that in the systems studied, InCl3-NaOH-H2O and In2(SO4)3-NaOH-H2O, no stable soluble or insoluble indates are formed.

     
  4. 4.

    Analysis by crystal optics and x-ray diffraction confirmed the individuality of the basic indium salt and the identity of the various indium hydroxide precipitates, irrespective of the concentration of alkali in the system.

     
  5. 5.

    The basic salts and indium hydroxide were submitted to thermographic analysis.

     
  6. 6.

    A study was made of solubility in the systems ZnSO4-NaOH-H2O; ZnCl2-NaOH-H2O; In2(SO4)3--ZnSO4-NaOH-H2O; InCl3-ZnCl2-NaOH-H2O. The optimum conditions for the separation of indium and zinc in the form of hydroxides were established.

     

Keywords

Sodium Zinc Indium Hydroxide Optimum Condition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

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Copyright information

© Consultants Bureau Inc. 1959

Authors and Affiliations

  • E. N. Deichman
    • 1
  1. 1.N. S. Kurnakov Institute of General and Inorganic Chemistry of the Academy of Sciences of the USSRUSSR

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