Jan Hendrik de Boer

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

De Boer was born in Ruinen, now De Wolden, and died in 's-Gravenzande. 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. 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.cite journal | title = Darstellung von reinem Titanium-, Zirkonium-, Hafnium- und Thoriummetall | journal = Zeitschrift für anorganische und allgemeine Chemie | volume = 148 | issue = 1 | year = 1925 | pages = 345–350 | first =A. E. | last = van Arkel | coauthors = de Boer, J. H.| doi = 10.1002/zaac.19251480133]

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

References

Persondata
NAME= Boer, Jan Hendrik de
ALTERNATIVE NAMES=
SHORT DESCRIPTION= Chemist
DATE OF BIRTH= birth date|1899|3|19|df=y
PLACE OF BIRTH= Ruinen
DATE OF DEATH= death date|1971|4|25|df=y
PLACE OF DEATH= ’s Gravenhage