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Charge and Stability of Colloids

XIX. Effect of non-electrolytes

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Summary

Effect of non-electrolytes like methyl alcohol, ethyl, n-propyl, n-butyl, n-hexyl alcohols, glucose, sucrose, urea, starch and iso-electric gelatin on negatively charged selenium oxide sol has been studied by Spekker absorptiometer in presence of barium chloride as coagulating electrolyte. It has been observed that the substances studied generally stabilise the sol except ethylalcohol in all concentrations, methyl and n-propyl alcohols in high concentrations which have been found to sensitise it. It has been found that dielectric constant does not seem to explain completely the phenomenon of sensitisation and protection.

Zusammenfassung

Mit Hilfe eines Spekker-Absorptionsmeters wurde der Einfluß von Nichtelektrolyten für Bariumchlorid als koagulierender Elektrolyt auf negativ geladenes Selenoxyd-Sol untersucht. Die angewendeten Nichtelektrolyte waren Methyl-, Äthyl-, n-Propyl-, n-Butyl- und n-Hexyl-Alkohol, Glukose, Sucrose, Harnstoff, Stärke und Gelatine (isoelektrisch). Es wurde festgestellt, daß in allen Fällen das Sol im allgemeinen stabilisiert wird außer durch Äthyl-Alkohol bei allen Konzentrationen, Methyl- und Propyl-Alkohol bei hohen Konzentrationen. In diesen Fällen wurde das Sol sensibilisiert. Außerdem wurde festgestellt, daß die Dielektrizitätskonstante offensichtlich nicht vollständig die Phänomene der Sensibilisierung und des Schutzes erklärt.

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References

  1. Ostwald, Wo., Grundriß der Kolloid-Chemie,441, (Dresden und Leipzig 1909).

  2. Freundlich, Kapillarchemie 2nd ed., 637 (Berlin 1922).

  3. Weiser, J. Phys. Chem.28, 1254 (1924).

    Google Scholar 

  4. Sen, Kolloid-Z.38, 310–14 (1926).

    Article  CAS  Google Scholar 

  5. Boutaric und Semelet, Rev. gen. colloides4, 286–9 (1926).

    Google Scholar 

  6. Mukherjee, Chaudhary and Rao, J. Indian Chem. Soc.5, 697 (1928).

    CAS  Google Scholar 

  7. Chaudhary and Ganguly, J. Phys. Chem.32, 1872 (1928).

    Article  Google Scholar 

  8. Ghosh, J. Chem. Soc.2693 (1929).

  9. Lachs and Chawlinski, Z. physik. Chem.A 159, 172 (1932).

    Google Scholar 

  10. Chatterji und Tewari, J. Indian Chem. Soc.31, 861 (1954).

    CAS  Google Scholar 

  11. Kruyt and van Arkel, Kolloid-Z.32, 29 (1923).

    Article  CAS  Google Scholar 

  12. Janeck and Jirgenson, Kolloid-Z.41, 4–6 (1927).

    Google Scholar 

  13. Kruyt and van Duin, Kolloid-Beih.5, 270 (1914).

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Chemical Dept. of the Lucknow University, India

    A. C. Chatterji & Paramhans Tewari

Authors
  1. A. C. Chatterji
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  2. Paramhans Tewari
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Chatterji, A.C., Tewari, P. Charge and Stability of Colloids. Kolloid-Zeitschrift 143, 32–35 (1955). https://doi.org/10.1007/BF01519939

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  • DOI: https://doi.org/10.1007/BF01519939

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