Talk:Uranium-238/Archive 1

Archive 1

Comments by Chealer

this seems incoherent with what I see on Plutonium. doesn't u-238 neutron bombing produce Pu?--Chealer 19:42, 2004 Dec 6 (UTC)

yes, i belive U-238+n --> U-239 -->(beta) Np-239 -->(beta) Pu-239 souns more likely, too.... X127 20:46, 31 Jan 2005 (UTC)

Infobox

What about add an Infobox isotope about U-238?--Daniel bg 13:57, 28 February 2006 (UTC)

Are the applications honest?

Is there any application which uses pure U-238, and not depleted uranium? --James S. 09:19, 17 March 2006 (UTC)

It is used for its properties as U-238, notwithstanding its source. --DV8 2XL 14:34, 17 March 2006 (UTC)

Would you have said "yes" if the answer was yes? --James S. 20:08, 17 March 2006 (UTC)

--DV8 2XL 21:40, 17 March 2006 (UTC)

No one produces pure U-238. Depleted uranium is mostly U-238 and is cheaply available. I'm not quite sure what James S. is asking here. pstudier 23:46, 17 March 2006 (UTC)

Nether am I really --DV8 2XL 03:01, 18 March 2006 (UTC)

These "applications" are not U-238 applications, they are depleted uranium applications. There are probably a few very specialized analytic applications which depend on pure U-238 (e.g., reference substance samples) but all of the applications listed in this article are unsupported, unencyclopedic, and they need to be removed or moved to depleted uranium if they are not already there. --James S. 03:14, 18 March 2006 (UTC)

So I take it then you oppose a mention of nuclear reactors and nuclear bombs in the Uranium-235 article, as these maters should only be covered on the enriched uranium page? Let me highlight what I said above: Hydrogen has three isotopes. Each has found unique applications that depend on their particular properties. This is also true of uranium in those services that are mentioned here. Uranium (as DU) has other applications that depend more on its density and its chemistry than its isotopic properties; these were NOT included in this article. --DV8 2XL 06:00, 18 March 2006 (UTC)

"equiliblium" during decay?

"In a closed system an equilibrium would be reached, with all amounts except lead-206 and uranium-238 in fixed ratios, in slowly decreasing amounts."

It seems like "equilibrium" might not be the right word here. 74.100.144.76 04:13, 2 December 2006 (UTC)

Cleanup?

Why is the cleanup tag on the article? --JWB 18:34, 28 May 2007 (UTC)

Reason given was "Natural decay series listed is incomplete/not factual" by an IP address user who did nothing else on the article or talk page. Since it was from August 2006, I'll consider it outdated. Removing. theanphibian 18:51, 28 May 2007 (UTC)

Decay

"Uranium-238 is also the product of the decay of uranium-234" This sentance is incorrect, decay never leads to a gain of mass. —Preceding unsigned comment added by 138.251.31.49 (talk) 17:44, 26 November 2007 (UTC)

Amazon

Amazon.com is selling uranium ore. Is this legal?[1] —Preceding unsigned comment added by 74.134.164.46 (talk) 23:47, 9 December 2007 (UTC)

Section on fusion power

I have removed the section on fusion power. Someone can revert it if they wish but I really do think it is superfluous in regards to the original article ie Uranium-238. —Preceding unsigned comment added by 149.171.42.145 (talk) 11:21, 9 September 2008 (UTC)

Uranium-238, U-238, ²³⁸U

I suggest that ²³⁸U be inserted into the defintion, as it is another (and common) way of saying the same thing. Hence:

"Uranium-238 (U-238 or ²³⁸U) is the most common is [...]"

/Tense (talk) 19:40, 30 May 2009 (UTC)

fission to higher elements?

i thought nuclear fission is when a element breaks down, but it is written here "In a fission nuclear reactor, uranium-238 can be used to breed Pu-239, which itself can be used in a nuclear weapon or as a nuclear-reactor fuel supply.", how can you "fission" into a higher material?

See the 2nd sentence, "It is not fissile, but is a fertile material: it can capture a slow neutron and after two beta decays become fissile plutonium-239". Materialscientist (talk) 04:55, 13 February 2011 (UTC)