Talk:Neodymium

Puzzling change labeled "+ per GAN"?

In this recent change, @Praseodymium-141 changed a sentence related to glass impurities to one related to lanthanide separation. The new sentence seems out of context. I don't understand the change nor the cryptic edit summary. Why this change? Is it still supported by the ref? Johnjbarton (talk) 14:03, 16 April 2024 (UTC)

The change was requested because the ref never supported the statements about glass impurities; it never mentions glass in the first place. I recommended the change in order to better reflect the information in the source; it probably needs additional work to put it in context with the rest of the paragraph. Information on historical neodymium glass production was not forthcoming. Reconrabbit 14:40, 16 April 2024 (UTC)

Pyrophoric?

Looking into grinding this material and every source I find says the dust is pyrophoric and extremely dangerous. So of course I referenced wikipedia and there's no information on flammability at all?

What is with this website? It's like giving useful information is against the EULA and we're just out to neuter intelligent people? What gives? I'm never donating to you again... at least not until you admit Paul Harrell is 300 times more 'notable' than Caleb Giddings.

WHAT IS WRONG WITH YOU PEOPLE?!?!?! 71.33.189.17 (talk) 05:47, 3 April 2025 (UTC)

The hazards section states clearly Neodymium metal dust is combustible and therefore an explosion hazard. The GHS symbol and NFPA 704 diamond use information on bulk neodymium under oil, not powdered neodymium Reconrabbit 14:29, 3 April 2025 (UTC)

Give an example of a reliable source that states this, and I can add it to the page. –LaundryPizza03 (dc̄) 08:11, 7 April 2025 (UTC)

GA review

This review is transcluded from Talk:Neodymium/GA3. The edit link for this section can be used to add comments to the review.

Nominator: Praseodymium-141 (talk · contribs) 16:09, 24 September 2026 (UTC)

Reviewer: ChopinChemist (talk · contribs) 03:54, 29 September 2026 (UTC)

I'll be reviewing this article, and will be basing my evaluation on previous GARs (1 and 2) and adding additional comments.ChopinChemist^Talk? 03:54, 29 September 2026 (UTC)

Thanks for taking up the review! ¹⁴¹Pr -_\contribs/- 15:53, 29 September 2026 (UTC)

Well-written

a. prose

Thin films 45 nm thick have been reported to order ferromagnetically below approximately 19 K This could be better worded to "Thin NdO films 45 nm thick show ferromagnetic properties at approximately 19K"

 Done - I've changed the sentence to "Thin NdO films 45 nm thick have been reported to become ferromagnetic below about 19 K." ¹⁴¹Pr -_\contribs/- 20:02, 30 September 2026 (UTC)

b. MoS compliance in

b.1. lead section

b.2. layout:

b.3. words to watch:

Verifiable with no original research

Physical properties

• It melts at approximately 1,024 °C (1,875 °F) and boils at 3,074 °C (5,565 °F).[11] Source [11] is dead, could replace with this url but I don't recommend due to the conversion error (melting point 10218.5 °C!). I suggest replacing with CRC Handbook or Arblaster in the infobox for the melting point. Furthermore, if source [11] is replaced by the url above, other issues persist:

• On heating at atmospheric pressure, this structure transforms into a body-centered cubic phase at about 863 °C (1,585 °F).[15][11] The Los Alamos National Laboratory URL would not support this claim but citation [15] does.
• The metal tarnishes in air. Its surface oxide can flake away, exposing fresh metal and allowing oxidation to continue.[11] and this section Neodymium is a constituent of mischmetal, a mixture of rare-earth metals whose traditional composition contains about 18% neodymium.[11]... Neodymium salts are used to color enamels.[11] The Los Alamos National Laboratory URL above would not support these claims.
• Although the element had been identified in its compounds, neodymium metal was not isolated in relatively pure form until 1925.[11] Haynes 2016 would be a better source for this claim

TLDR: The Los Alamos URL should be replaced.

Uses

• Neodymium-doped glass slabs used in high-energy laser systems for inertial confinement fusion research. This detail should be cited given its inclusion in the lead.

Chemical properties

• The source Webelements.com [22] should be removed as the link is no longer active. I will find sources then suggest a replacement later, but you could look at Advanced Inorganic Chemistry by Dr. Cotton and Dr. Wilkinson

 Done - I’ve replaced the WebElements citations with other citations including Cotton et al. and Ganjali et al. ¹⁴¹Pr -_\contribs/- 18:37, 29 September 2026 (UTC)

Permanent magnets

• Ref 82-84 in Other audio applications include headphones[82] and magnetic pickups for guitars and bass guitars.[83][84] should be replaced with more reliable sources per WP:VENDOR. A suggested source to replace 82 is Bünzli & Mcgill 2018, p. 43 in Ullmann's encyclopedia:

Bünzli, Jean‐Claude G.; Mcgill, Ian (2018). "Rare Earth Elements". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a22_607.pub2. ISBN 978-3-527-30673-2.

 Done - I’ve replaced the vendor references with independent sources. The headphone claim now cites Bünzli & McGill, and I changed the guitar-pickup wording to match an IEEE source; I have removed the bass-guitar example as I couldn't find an independent and reliable ref for it. ¹⁴¹Pr -_\contribs/- 18:05, 29 September 2026 (UTC)

Source spot check

[12] Y [13] Y [26] This source doesn't provide a strong support for the claim Some neodymium compounds change their apparent color under different types of illumination [29]Y [36]Y [60]Y [113]Y

Pics

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