Chemistry of sulfate chloride perhydrates. Part 2.—Reperhydration by H2O2

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Stephen D. Cosgrove and William Jones


Abstract

The perhydrate, 4Na2SO4 NaCl2H2O2 , has been heated in order to fully desorb the H2O2 . The resulting powder [an intimate mixture of Na2SO4(III) and NaCl] was exposed to the vapour above a solution of H2O2 . Two mechanisms are observed for the regeneration of the perhydrate: at high concentrations of H2O2 (>0.60 g cm–3), direct reaction between the powder and the gaseous H2O2 occurs; at concentrations <0.60 g cm–3 , the powder becomes wet and the Na2SO4 phase (III) transforms into phase (V). Regeneration into the perhydrate then proceeds by crystallisation of the perhydrate from the slurry of Na2SO4(V) and NaCl. The two mechanisms occur together at intermediate concentrations of H2O2.


References

  1. Kao Soap Co. Ltd. and Nippon Peroxide Co. Ltd., Ger. Pat. 2 530 539, 1975 Search PubMed.
  2. J. M. Adams, V. Ramdas and A. W. Hewat, Acta Crystallogr., Sect. B, 1981, 37, 915 CrossRef.
  3. S. D. Cosgrove and W. Jones, J. Mater. Chem., preceding paper Search PubMed.
  4. G. E. Brodale and W. F. Giauque, J. Phys. Chem., 1972, 76, 737 CrossRef CAS.
  5. J. M. Adams, L. A. Ashe and C. J. Adams, Inorg. Chim. Acta, 1980, 44, L195 CrossRef CAS.
  6. S. D. Cosgrove and W. Jones, J. Chem. Soc., Chem Commun., 1994, 2255 RSC.
  7. M. E. Solomon, Bull. Entomol. Research, 1951, 42, 543 Search PubMed.
  8. A. K. Galwey, Chemistry of Solids, Chapman and Hall, London, 1967, p. 180 Search PubMed.
  9. S. D. Cosgrove, PhD Thesis, University of Cambridge, 1996.
  10. M. J. Buerger, in Phase Transformations in Solids, ed. R. Smoluchowski, J. E Mayer and W. A. Weyl, Wiley, New York, 1951, p. 199 Search PubMed.
  11. A. K. Galwey and W. J. Hood, J. Chem. Soc., Faraday Trans., 1982, 78, 2815 Search PubMed.
  12. W. C. Shumb, C. N. Satterfield and R. L. Wentworth, Hydrogen Peroxide, Reinhold, New York, 1955, pp. 221–231 Search PubMed.
  13. H. G. Wiedemann, W. Smykatz-Kloss and W. Eysel, Therm. Analysis, 2 Proc. 6th ICTA Bayreuth, Birkhäuser Verlag, Basel, 1980, p. 347 Search PubMed.
  14. M. Sakaguchi, M. Ohta and S. Miyazaki, J. Electrochem. Soc., 1984, 131, 1942 CAS.
  15. M. Sakaguchi, M. Ohta and Y. Takashima, Rare Earths, 1983, 2, 24 Search PubMed.
  16. G. Scatchard, G. M. Kavanagh and L. B. Ticknor, J. Am. Chem. Soc., 1952, 74, 3715 CrossRef CAS.
  17. C. J. Adams, J. M. Adams, R. G. Pritchard and V. Ramdas, J. Inorg. Nucl. Chem., 1979, 41, 937 CAS.
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