The Light Emitted by Europium Compounds


SOME time ago, my co-workers and I 1 found that the well-known blue fluorescence band of some fluorites is due to traces of bivalent europium. In later papers2, I showed that europium can easily be reduced to the bivalent form by heating in various basic materials.


  1. 1

    Haberlandt, H., Karlik, B., and Przibram, K., Wien. Ber., IIa, 143, 151 (1934).

    CAS  Google Scholar 

  2. 2

    Przibram, K., (a) Wien. Ber., IIa, 144, 141 (1935); (b) ibid., 147, 261 (1938).

    CAS  Google Scholar 

  3. 3

    Freed, S., and Katcoff, S., Physica, 14, 17 (1948).

    ADS  CAS  Article  Google Scholar 

  4. 4

    Przibram, K., Z. Phys., 102, 331 (1936).

    ADS  CAS  Article  Google Scholar 

  5. 5

    Przibram, K., Wien. Anz., 98 (1946). In this paper ref. 2 ought to read : Nichols, E. L., and Boardman, L. J., J. Opt. Soc. Amer., 20, 115 (1930).

    Google Scholar 

  6. 6

    Compare also Przibram, K., ref. 2(b).

Download references

Author information



Rights and permissions

Reprints and Permissions

About this article

Cite this article

PRZIBRAM, K. The Light Emitted by Europium Compounds. Nature 163, 989 (1949).

Download citation

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.