Letter | Published:

Colours of Inorganic Salts

Nature volume 127, page 485 (28 March 1931) | Download Citation



IN continuation of the letter published in NATURE, vol. 125, p. 163, Feb. 1, 1930, we wish to report that absorption spectra of vapours of chromic chloride and ferrous chloride were taken at temperatures of 1000° C. to 1400° C. in the vacuum furnace in order to test the theory postulated in the above communication. These substances were chosen because, according to information available in standard chemical literature, they do not dissociate within the temperature range mentioned and still yield sufficient vapour for absorption work.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Author information


  1. Department of Physics, University of Allahabad, Feb. 12.

    • M. N. SAHA
    •  & S. C. DEB


  1. Search for M. N. SAHA in:

  2. Search for S. C. DEB in:

About this article

Publication history





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.