Green crystal of californium bromide CfBr3. (1)
98 - Californium
Green crystal of californium bromide CfBr3. (1)
About 20
micrograms as a circular spot plated on a platinum disk.
(2)
The first pure californium compound, 0.3
micrograms of californium-249 oxychloride (CfOCl), isolated in 1960.
The crystals are lodged in a capillary
tube. (3)
Californium metal (5 mg of Cf-249). (4)
1 -
http://www.chemie-master.de/. Photo credited to A. Kronenberg,
http://www.kernchemie.de/.
2 - "Matter", Ralph E. Lapp and the editors of LIFE, LIFE
Science Library. A newer edition than 1965, I
don't know which year.
3 - "Man-Made Transuranium Elements", G. T. Seaborg,
Prentice-Hall, 1963. The 1965 Life book also used this picture.
4 - R. G. Haire, "Preparation of transplutonium metals and
compounds", p 309-342, printed in "Actinides in Perspective", N.M. Edelstein
ed., Pergamon Press, 1981. Thanks to David Keim for the reference.
5 - In J. Emsley, "Nature's Building Blocks", Oxford Press,
2001, it is stated that californium metal has yet to be prepared. This
appears to be incorrect.
6 - An
Application by Kodak in analysis of impurities in chemicals.