Talk:Chemical transport reaction

Latest comment: 5 years ago by Smokefoot in topic Synthetic made gold crystals

The Mond process could also be mentioned? And what is the difference between CTR and chemical vapour deposition?--Stone 23:06, 1 July 2007 (UTC)Reply

  • In the usual CTR, at least the ones that I have seen and read about, a catalytic amount of the transporting agent is employed and the system is sealed. But the Mond process is relevant and could be incorporated into the description. Usually the Mond process uses flowing CO (like HCl coming from vents of volcanos I guess). My hope is that someone expert in solid state chem will edit this but we need a placeholder at least.--Smokefoot 23:28, 1 July 2007 (UTC)Reply

Van-Arkel-de-Boer-Process

edit
  • Arkel, A. E. van, andde Boer, J. H., U. 8. Patent 1,671,213 1928
This process is used to purify Titanium, Hafnium and others by a chemical transport method. Article in the german wiki as Van-Arkel-de-Boer-Verfahren.--Stone 09:41, 3 July 2007 (UTC)Reply

Halogen lamp

edit

This section needs revision. The primary reaction is with tungsten in the gas phase to form an iodide. The iodide decomposes on the tungstant filament back to tungsten metal. Formation of tungsten oxide is clearly undesirable as it would increase the resistance of the filament. I can't find a reliable source for the exact compound(s) formed. Petergans (talk) 11:22, 30 January 2011 (UTC)Reply

Diagram required

edit

I think a diagram of the process would really aid the process description. — Preceding unsigned comment added by 86.186.122.185 (talk) 07:20, 25 February 2015 (UTC)Reply

Synthetic made gold crystals

edit

Spectacular photo: gold crystals.
— Preceding unsigned comment added by 2602:306:CFCE:1EE0:192F:98FA:C9AC:D6E5 (talk) 01:57, 13 March 2019 (UTC)Reply

Good idea.   Done--Smokefoot (talk) 23:14, 13 March 2019 (UTC)Reply