Talk:Rhodium

Why is rhodium more of an ethereal pink?

It's odd that all sources state rhodium to be silvery white, when there are, albeit few, images where it is clearly a very slight pink color. I'd attach images that fall under this category here if I could, but most notably, the image used on wikipedia has it. And I know I'm not crazy because I've used color pickers on the images in question, and in certain places you can clearly find that the pixel has slightly more red than other colors.

Why could this be? Is it just that under insufficient lighting there isn't enough color for it to reflect or because the cameras pick up infrared being reflected? Should the color of the metal be relabeled? Thor3005 (talk) 13:09, 6 July 2025 (UTC)

I think it might be a leftover from some of the chlorides, since those are very red, but I'm not sure Crystallyn0 (talk) 14:51, 7 July 2025 (UTC)

Article review

It has been a while since this article was reviewed, so I took a look and noticed lots of uncited statements, including entire paragraphs. Should this article go to WP:GAR? Z1720 (talk) 03:25, 27 December 2025 (UTC)

GA Reassessment

Rhodium

The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

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Article (edit | visual edit | history) · Article talk (edit | history) · Watch • Watch article reassessment page • Most recent review

Result: Issues appear to have been resolved. Bgsu98 (Talk) 03:21, 22 March 2026 (UTC)

Uncited statements, including entire paragraphs. Z1720 (talk) 23:07, 18 February 2026 (UTC)

If you apply {{cn}} I'll fix them. Johnjbarton (talk) 23:51, 18 February 2026 (UTC)

• @Johnjbarton: Added citation needed tags and a "duplicate citations" yellow banner. Z1720 (talk) 23:55, 18 February 2026 (UTC)

  @Z1720 I added some refs, @Smokefoot and @Reconrabbit add more. Please review. Johnjbarton (talk) 05:03, 5 March 2026 (UTC)

  I made some more small corrections, but the paragraphs starting All the Rh(III) halides are known, Rhodium is known for its many organometallic derivatives and Related cyclopentadienyl compounds include still lack references. I'll look at Handbook of the Chemical Elements to see more today. -- Reconrabbit 14:56, 5 March 2026 (UTC)

  Looks to be in better shape thanks to @Preimage. I couldn't find out much about rhodium-carbonyl clusters. The statement about "anhydrous Rh(III)Cl is also available" is also bothering me a bit - Sicius (2024) states that the trihydrate quickly hydrolyzes to the oxide, so isn't the anhydride preferred? -- Reconrabbit 19:50, 13 March 2026 (UTC)

  Sicius, Hermann (2019). "Cobaltgruppe: Elemente der neunten Nebengruppe". Handbuch der chemischen Elemente: 1–37. doi:10.1007/978-3-662-55944-4_14-1. (available via TWL) states anhydrous RhCl₃ is insoluble in water and acids, and that RhCl₃·3H₂O readily dissolves in water but, upon heating, hydrolyses to Rh₂O₃.
  Cotton, F. Albert; Wilkinson, Geoffrey; Murillo, Carlos A.; Bochmann, Manfred (1999), Advanced Inorganic Chemistry (6th ed.), New York: Wiley-Interscience, ISBN 0-471-19957-5 states anhydrous RhCl₃ is "exceedingly inert" (though a variant exists that is "much more reactive and dissolves in water and THF"), whereas RhCl₃·3H₂O is "One of the most important Rh(III) compounds and the usual starting material for the preparation of rhodium complexes" (presumably due to its accessibility, solubility, and chemical lability, e.g. "water solutions are extensively hydrolyzed"). Preimage (talk) 01:07, 14 March 2026 (UTC)

  I used your source analysis to alter the content. Johnjbarton (talk) 01:58, 14 March 2026 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.