Talk:Gadolinium

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia

Untitled[edit]

Article changed over to new Wikipedia:WikiProject Elements format by schnee. Elementbox converted 11:31, 10 July 2005 by Femto (previous revision was that of 13:43, 9 July 2005). 9 July 2005

Information Sources[edit]

Some of the text in this entry was rewritten from Los Alamos National Laboratory - Gadolinium. Data for the table was obtained from the sources listed on the subject page and Wikipedia:WikiProject Elements but was reformatted and converted into SI units.



Chemical/mineralogical errors[edit]

"Gadolinium is a constituent in many minerals such as monazite and bastnäsite, which are oxides." --> wrong: "monazite" (it is actually a group of minerals an not a single mineral; so is true for the latter) is not an oxide, but a phosphate; "bastnäsite" is also not an oxide: it is a carbonate.Eudialytos (talk) 19:10, 7 May 2022 (UTC)[reply]

Refs.:
https://www.mindat.org/min-2750.html
https://mineralogy-ima.org/Minlist.htm Eudialytos (talk) 23:06, 18 May 2023 (UTC)[reply]

Correction for Gd b. p. value (among others)[edit]

Because only editors are permitted to change b. p. values in Wikipedia, I submitted the following to veteran editor Polyamorph on 30 September 2023 without any response. I submit it here

Wikipedia B. P. values[edit]

Dear Polyamorph,

This is VatievonHans who is unable to login on my new Pavilion PC or to reset my password. I have graduated from densities & m. p. to b. p. Below are issues for your consideration because I am not qualified to change b. p. values on Wikipedia. Because Wikipedia accepts the b. p. temp from Zhang et al. (J. Chem. Eng. Data 2011, 56, 328-337) for Tb at 3396 K rather than the CRC value at 3503 K (or 103% of Zhang) and for Ir at 4403 K rather than the CRC value at 4701 K (or 107% of Zhang), should the current b. p. temp at 1802 K for Eu on Wikipedia be replaced with the 1713 K value from Zhang et al. (where 1802 K is 105% of Zhang)?

For Gd, Wikipedia & Zhang claim b. p. at 3273 K, but the 2016 CRC Handbook shows (p. 4-14) 3273 °C (not K) and adding 273 = 3546 K (which is 108.34% of 3273). Zhang et al. do show (in Table 1) a CRC value of 3546 K as well as values of 3533 K and 3539 K from two other handbooks along with 3273 K (°C?) from two different handbooks.

Below is my 9/13/23 email to the corresponding author for Zhang et al. (before I noticed the Gd issue).

Dear Professor Shoufeng Yang:

Concerning J. Chem. Eng. Data 2011, 56, 328-337, the "corrected" B. P. values are the same in Tables 11 & 13 for Ba, Be, C, Pd, Pr, Rh, Sn, and Y, but the Yb value in Table 11 is 116% of the value in Table 13 (1703 vs 1466 K), the Tm value in Table 11 is 110% of that in Table 13 (2203 vs 2003 K), and the Nb values differ slightly at 100.9% (5017 vs 4973 K). Perhaps errata could be submitted to the journal to avoid confusion for other readers. Sincerely, Thomas A. Hinners a recovering chemist 68.108.51.9 (talk) 23:38, 30 September 2023 (UTC) 68.108.51.9 (talk) 17:58, 17 October 2023 (UTC)[reply]