Thermal variation of the rotatory power of crystals of NaClO3 and NaBrO3

  • M. S. Madhava


The thermal variation of rotatory power of crystals of NaClO3 and NaBrO3 has been measured in the visible and ultraviolet region of the spectrum. The rotatory power of NaClO3 increases on heating whereas that of NaBrO3 decreases. On the other hand the refractive index decreases with rise of temperature for both crystals. The observations are shown to be consistent with the temperature derivative of refractive and rotatory dispersion formulae.


Refractive Index NaClO3 Mixed Crystal Active Band Temperature Derivative 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Bijvoet, J. M...Acta Cryst., 1960,13, 1100.Google Scholar
  2. 2.
    Beurskens-Kerssen, G., Kroon, J., Endeman, H. J., van Laar, J. and Bijvoet, J. M...Crystallography and Crystal Perfection, Academic Press, New York and London, 1963, p. 225.Google Scholar
  3. 3.
    Chandrasekhar, S. and Madhava, M. S.Acta Cryst., 1967,23, 911.CrossRefGoogle Scholar
  4. 4.
    —..Raman Festschrift, Materials Research Bulletin, 1969,4, 489.CrossRefGoogle Scholar
  5. 5.
    Sohncke, L...Ann. Phys. Und. Chem., 1878,3, 529.Google Scholar
  6. 6.
    Gopala Krishnan, C. P...J. Ind. Inst. Sci., 1957,39, 13.Google Scholar
  7. 7.
    Kizel, V. A., Krasilov, Yu. I. and Shamraev, V. N.Optics and Spectrosc. (U.S.S.R.), 1964,17, 470.Google Scholar
  8. 8.
    Poinsot, G. and Mathieu, J. P.Ann. Phys., 1955,10, 481.Google Scholar
  9. 9.
    Ramachandran, G. N...Proc. Ind. Acad. Sci., 1947,25, 260, 280; 286, 375, 481, 498.Google Scholar
  10. 10.
    Sarma, S. S...Ibid., 1950,31 A, 83.Google Scholar
  11. 11.
    Chandrasekhar, S...Ibid., 1954b,39 A, 290.Google Scholar
  12. 12.
    —..Proc. Roy. Soc., 1960,259 A, 531.Google Scholar
  13. 13.
    Myers, M. B. and Vedam, K.J. Opt. Soc. Am., 1965,55, 1180.CrossRefGoogle Scholar
  14. 14.
    —..Ibid., 1966,56, 1741.CrossRefGoogle Scholar
  15. 15.
    —..Ibid., 1967,57, 1146.CrossRefGoogle Scholar
  16. 16.
    Vedam, K. and Davis, T. A.Ibid., 1968,58, 1451.CrossRefGoogle Scholar
  17. 17.
    Chandrasekhar, S...Proc. Ind. Acad. Sci., 1952,35 A, 103.MathSciNetGoogle Scholar
  18. 18.
    —..Ibid., 1953,37 A, 697.Google Scholar
  19. 19.
    —..Ibid., 1954a,39 A, 243.Google Scholar
  20. 20.
    Agranovich, V. M...Optika i Spektrosc. (U.S.S.R.), 1957,2, 738.Google Scholar
  21. 21.
    Vysin, V...Vest. Mask. Gos. Univ., 1963,3, 6.Google Scholar
  22. 22.
    Belajev, L. M. and Perekalina, Z. B.Soviet Phys.—Cryst. (U.S.A.), 1967,12, 243.Google Scholar
  23. 23.
    Burkov, V. J., Kizel, V. A., Krasilov, Yu. I. and Perekalina, Z. B.Doklady Akad. Nauk, 1968,180, 548.Google Scholar
  24. 24.
    Beulard, F. .. “Sur le co-existence du pouvoir rotatoire et de la double refraction dans le quartz,”Thesis, Paris, 1893.Google Scholar
  25. 25.
    Sosman, R. B. .. “The properties of silica,”Amer. Chem. Soc. Monographs, 1927.Google Scholar
  26. 26.
    Cady, W. G...Piezo-electricity, Dover Publications, Inc., New York, 1964.Google Scholar
  27. 27.
    Ramachandran, G. N. and Chandrasekharan, V.Proc. Ind. Acad. Sci., 1951,33 A, 199.Google Scholar

Copyright information

© Indian Academy of Sciences 1970

Authors and Affiliations

  • M. S. Madhava
    • 1
  1. 1.Department of PhysicsUniversity of MysoreMysore-6

Personalised recommendations