• Thumbnail for Anton Eduard van Arkel
    Anton Eduard van Arkel, (19 November 1893 – 14 March 1976) was a Dutch chemist. In the early 1920s Van Arkel, together with Jan Hendrik de Boer, working...
    3 KB (258 words) - 11:47, 20 October 2024
  • Thumbnail for Van Arkel–Ketelaar triangle
    Bond triangles or Van Arkel–Ketelaar triangles (named after Anton Eduard van Arkel and J. A. A. Ketelaar) are triangles used for showing different compounds...
    3 KB (377 words) - 13:21, 4 May 2023
  • Thumbnail for Van Arkel–de Boer process
    titanium, zirconium and some other metals. It was developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925 for Philips Nv. Now it is used in...
    3 KB (365 words) - 18:14, 13 June 2024
  • AD near Arkel and lasting until 1412 AD. Their fief was called Land van Arkel. Other people with this surname include: Anton Eduard van Arkel (1893–1976)...
    732 bytes (119 words) - 13:03, 24 October 2023
  • Thumbnail for Titanium
    Titanium of very high purity was made in small quantities when Anton Eduard van Arkel and Jan Hendrik de Boer discovered the iodide process in 1925, by...
    81 KB (8,933 words) - 08:21, 22 November 2024
  • Thumbnail for Anton (given name)
    (1824–1897), Romanian politician Anton Eduard van Arkel (1893–1976), Dutch chemist Anton Armstrong (born 1956), musical artist Anton Aškerc (1856–1912), Slovenian...
    73 KB (8,878 words) - 12:33, 6 November 2024
  • Thumbnail for Jan Hendrik de Boer
    of Groningen and was later employed in industry. Together with Anton Eduard van Arkel, de Boer developed a chemical transport reaction for titanium, zirconium...
    2 KB (233 words) - 15:38, 12 January 2023
  • Thumbnail for Zirconium
    crystal bar process (also known as the Iodide Process), discovered by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925, was the first industrial process...
    48 KB (5,510 words) - 02:33, 30 October 2024
  • Thumbnail for Pnictogen
    and N. The term "pnictogen" was suggested by the Dutch chemist Anton Eduard van Arkel in the early 1950s. It is also spelled "pnicogen" or "pnigogen"...
    34 KB (4,067 words) - 01:03, 5 November 2024
  • the 1990s) TiCl4 is reduced to the metal by sodium. In the 1920s Anton Eduard van Arkel working for Philips NV had described the thermal decomposition of...
    6 KB (690 words) - 12:29, 6 September 2024
  • Thumbnail for Jöns Jacob Berzelius
    zirconium in 1824, but pure zirconium was not produced until 1925, by Anton Eduard van Arkel and Jan Hendrik de Boer. Berzelius is credited with originating...
    43 KB (4,355 words) - 02:47, 29 October 2024
  • or potassium fluorides by Valdemar Thal Jantzen and von Hevesey. Anton Eduard van Arkel and Jan Hendrik de Boer were the first to prepare metallic hafnium...
    46 KB (5,411 words) - 23:56, 8 November 2024
  • Thumbnail for Group 4 element
    or potassium fluorides by Valdemar Thal Jantzen and von Hevesy. Anton Eduard van Arkel and Jan Hendrik de Boer were the first to prepare metallic hafnium...
    35 KB (4,233 words) - 07:58, 22 October 2024
  • Thumbnail for Lise Meitner
    non-salaried privaat-docente was required. Wander Johannes de Haas and Anton Eduard van Arkel arranged for one at Leiden University. Coster also spoke to the...
    109 KB (13,284 words) - 17:16, 21 November 2024
  • Thumbnail for Vanadium
    of vanadium is possible by the crystal bar process developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925. It involves the formation of the...
    75 KB (8,566 words) - 05:49, 11 November 2024
  • under Anton Eduard van Arkel. There he received his "kandidaats" (bachelor) degree in 1935 and "doctoraal" (masters) degree in 1938. In parallel, van Krevelen...
    9 KB (986 words) - 13:06, 6 June 2023
  • "Gerardus Anne van Arkel", KNAW Historisch Ledenbestand (Digitaal Wetenschapshistorisch Centrum). Retrieved 3 May 2020. "Anton Eduard van Arkel", KNAW Historisch...
    18 KB (921 words) - 02:56, 19 April 2022
  • Thumbnail for Group 5 element
    of vanadium is possible by the crystal bar process developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925. It involves the formation of the...
    89 KB (9,379 words) - 00:39, 16 November 2024
  • American chemist Johan August Arfwedson (1792–1841), Swedish chemist Anton Eduard van Arkel (1893–1976), Dutch chemist Svante Arrhenius (1859–1927), Swedish...
    61 KB (7,585 words) - 23:08, 21 November 2024
  • Thumbnail for Zirconium(IV) iodide
    ductile metallic zirconium. This crystal bar process was developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925. Heating the tetraiodide with zirconium...
    4 KB (313 words) - 16:42, 6 November 2024
  • graduate studies at the University of Utrecht where she studied under Anton Eduard van Arkel. At the end of the World War II, she completed her doctoral examination...
    8 KB (854 words) - 07:12, 15 August 2023
  • Thumbnail for List of Dutch discoveries
    (also known as iodide process or the van Arkel–de Boer process) was developed by Dutch chemists Anton Eduard van Arkel and Jan Hendrik de Boer in 1925. It...
    82 KB (10,146 words) - 15:54, 15 May 2024
  • Thumbnail for List of rectores magnifici of Leiden University
    Maarten van Bemmelen jr. 1954–1955 Jan Nicolaas Bakhuizen van den Brink 1955–1956 Anton Eduard van Arkel 1956–1957 Pieter Arie Hendrik de Boer 1957–1958 Samuel...
    36 KB (110 words) - 01:07, 10 November 2024
  • Marc Justine Alvarez, Sancho Delas Alas, Gilleth Sandico, Kim Chi Tee, Arkel Mendoza, Mega Unciano 7 "Viral Siblings" (The Bilog and Bunak Tiongson Story)...
    389 KB (418 words) - 14:14, 21 November 2024