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Thermometrische Schnellanalyse von Martin- und Hochofenschlacken sowie anderen Silicaten

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Summary

A novel method has been developed for the rapid analysis of silicates. Each component is determined from the temperature variation of the solution resulting from the addition to the test solution of a selectively reacting reagent. By suitable construction of the instrument the concentration of the component to be determined can be read directly in per cent. The determination of a component takes usually 4 to 8 minutes.

In the test solution a temperature change proportional to the concentration of the component to be determined has been produced by the following reagents: sulphuric acid for barium, ammonium peroxodisulphate for iron, hydrogen peroxide for titanium, hydrofluoric acid for silicic acid, potassium permanganate for sulphur, ammonium molybdate and hydrogen peroxide for phosphate, potassium permanganate for manganese, potassium oxalate for calcium, diammonium hydrogenphosphate for magnesium, ascorbic acid for chromium. The above components can be determined without any separations. Only in the case of aluminium a separation of silicic acid from aluminium by dehydrating with perchloric acid in necessary. Thereafter the aluminium can be determined with hydrofluoric acid.

The precision of the determinations is practically identical with the precision of the usual plant methods.

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Authors and Affiliations

  1. Forschungsinstitut für die Eisenindustrie, Budapest

    I. Sajó & Frau B. Sipos

Authors
  1. I. Sajó
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  2. Frau B. Sipos
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Sajó, I., Sipos, F.B. Thermometrische Schnellanalyse von Martin- und Hochofenschlacken sowie anderen Silicaten. Z. Anal. Chem. 222, 23–50 (1966). https://doi.org/10.1007/BF00504649

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  • DOI: https://doi.org/10.1007/BF00504649

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