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Cation chromatography on tin (II) hexacyanoferrate (II) papers in HCl and HCl+NH4Cl systems. Prediction of Ksp values from Ri values

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Summary

Tin (II) hexacyanoferrate (II) papers have been used to study the chromatographic flow of metal ions in solvent systems containing different concentrations of HCl and NH4Cl. The effect of parameters such as atomic number (Z), ionic charge, bare ionic radius (r0) and solubility products of metal hexacyanoferrates (II) on the rate of movement of the ions has been studied. As a result, a linear relationship between Ri ((Rf on plain paper)-(Rf on impregnated paper)) and the solubility product (Ksp) of metal ferrocyanides has been obtained as follows:

$$Ri = 0.76 + 0.0027\frac{{10^3 }}{{ - log Ksp \times Z^2 \cdot r^0 }}$$

The Ksp values of various hexacyanoferrates (II) have been predicted on the basis of the above relation.

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Authors and Affiliations

  1. Chemistry Section, Z. H. College of Engineering and Technology, Aligarh Muslim University, Aligarh, India

    K. G. Varshney & S. S. Varshney

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  1. K. G. Varshney
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  2. S. S. Varshney
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Varshney, K.G., Varshney, S.S. Cation chromatography on tin (II) hexacyanoferrate (II) papers in HCl and HCl+NH4Cl systems. Prediction of Ksp values from Ri values. Chromatographia 10, 542–544 (1977). https://doi.org/10.1007/BF02262914

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