Talk:Hafnium

Untitled

Article changed over to new Wikipedia:WikiProject Elements format by maveric149 and Dwmyers. Elementbox converted 10:58, 14 July 2005 by Femto (previous revision was that of 16:28, 10 July 2005).

Information Sources

Some of the text in this entry was rewritten from Los Alamos National Laboratory - Hafnium. Additional text was taken directly from, from the Elements database 20001107 (via dict.org), and WordNet (r) 1.7 (via dict.org). 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.

Edit war

Massive edit war on 9/11. Is the edit warrior blocked? I requested temporary protection for both rubidium and hafnium 2603:8080:D03:89D4:5455:CA76:D8EB:B94F (talk) 22:31, 14 September 2024 (UTC)

Was the edit warrior an IP or a registered user? 2603:8080:D03:89D4:5455:CA76:D8EB:B94F (talk) 22:33, 14 September 2024 (UTC)

There is no such edit war. Please WP:REGISTER an account. Otherwise these kinds of baseless posts look like a form of vandalism. Johnjbarton (talk) 22:53, 14 September 2024 (UTC)

Article review

It has been a while since this article has been reviewed, so I took a look and noticed lots of uncited statements, including entire paragraphs. Should this article go to WP:GAR? Z1720 (talk) 23:49, 15 September 2025 (UTC)

GA Reassessment

Hafnium

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: Kept. Bgsu98 (Talk) 22:05, 13 November 2025 (UTC)

Uncited statements, including entire paragraphs. Z1720 (talk) 23:10, 5 October 2025 (UTC)

I'll take a look later today. The Precautions section could also be updated to be in line with other elements (ex: having a hazard infobox). -- Reconrabbit 11:23, 6 October 2025 (UTC)

Current state of affairs: I believe the rest of the "geology" paragraph is backed up by Kinny 2003 but I can't read the full text to check. Otherwise I should be able to find the few missing citations in Ullmann's Encyclopedia of Industrial Chemistry. There are some production methods listed there that I don't think are represented in the text here but I can't determine what's useful to include and what would end up repeating what has already been said. Once done with re-referencing I will add more to the leading paragraphs which are rather short. -- Reconrabbit 17:47, 6 October 2025 (UTC)

I believe the minimum work has been done to correct the initial issue (uncited statements) and the article has been expanded in notably deficient areas (the leading paragraphs, safety and toxicity). -- Reconrabbit 14:49, 8 October 2025 (UTC)

Thanks for you work on the article. From a quick scan, I'd like to see the one-sentence paragraphs consolidated, but otherwise I don't see a fail of any of the GA criteria. I think this is very close to being kept. Trainsandotherthings (talk) 22:43, 20 October 2025 (UTC)

• Keep. Uncited statements have been resolved. No further concerns. Z1720 (talk) 23:58, 2 November 2025 (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.

B, R, now D?

There is an error on the page; namely, in the "Alloy" section delta 50 degrees Celsius is shown as 122 degrees Fahrenheit. The correct value is 90 degrees Fahrenheit.

Freeze a liter of water. Measure its temperature on both the Celsius and Fahrenheit scale. It will be 0C or 32F. Now, boil it. Measure its temperature on both scales. It will be 100C or 212F The difference between the freezing and boiling points of water is 100 degrees on the Celsius scale, but 180 degrees on the Fahrenheit scale. We can see from this that a change of 1 degree on the Celsius scale is the same as a change of 1.8 degrees on the Fahrenheit scale. If we heat that liter of water to 50 degrees Celsius and measure its temperature on the Fahrenheit scale, we will record a temperature of 122F. Now, boil the water and measure its temperature. We will record temperatures of 100C and 212F. The difference between 122 degrees Fahrenheit and 212 degrees Fahrenheit is 90 degrees, not 122 degrees. And it will be 90 degrees Fahrenheit for any two temperatures measured on the Celsius scale that are 50 degrees apart.

The problem arose from using "Convert" instead of doing the job using an algorithm that did not convert from one scale to the other. Alflyover (talk) 23:11, 9 March 2026 (UTC)

@CodeTalker applied the right fix. I didn't notice "difference" in your edit summary sorry. Johnjbarton (talk) 00:59, 10 March 2026 (UTC)

Hello John. No worries. We're good.

--Al Alflyover (talk) 03:18, 10 March 2026 (UTC)