Jan Hendrik de Boer

Jan Hendrik de Boer (19 March 1899 – 25 April 1971) was a Dutch physicist and chemist.

In this Dutch name, the surname is de Boer, not Boer.
Prof. dr. J. H. de Boer, 1947

De Boer was born in Ruinen, De Wolden, and died in The Hague.[1] He studied at the University of Groningen and was later employed in industry.

Together with Anton Eduard van Arkel, de Boer developed a chemical transport reaction for titanium, zirconium, and hafnium known as the crystal bar process. In a closed vessel the metal reacts with iodine at elevated temperature forming the iodide. At a tungsten filament of 1700 °C the reverse reaction occurs, and the iodine and the metal are set free. The metal forms a solid coating at the tungsten filament and the iodine can react with additional metal, resulting in a steady turnover.[2]

M + 2I2 (>400 °C) → MI4
MI4 (1700 °C) → M + 2I2

De Boer became a member of the Royal Netherlands Academy of Arts and Sciences in 1940, and foreign member in 1947.[3]

See also

References
  1. "CV" (PDF). Archived from the original (PDF) on 2014-04-07. Retrieved 2013-05-16.
  2. van Arkel, A. E.; de Boer, J. H. (1925). "Darstellung von reinem Titanium-, Zirkonium-, Hafnium- und Thoriummetall". Zeitschrift für anorganische und allgemeine Chemie. 148 (1): 345–350. doi:10.1002/zaac.19251480133.
  3. "J.H. de Boer (1899 - 1971)". Royal Netherlands Academy of Arts and Sciences. Retrieved 17 July 2015.


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