Talk:Iron–hydrogen alloy

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Stoichometry and fourth form

If I understood correctly, Antonov et al conjectures that one of the high pressure forms is FeH
_0.42 or so rather than FeH, and that there is a fourth metastable form. But I could find no confirmation of either. --Jorge Stolfi (talk) 18:06, 18 February 2013 (UTC)[reply]

Confusion

I am confused. Iron-hydrogen cannot be both an alloy and a chemical compound, iron hydride. Biscuittin (talk) 01:04, 30 November 2014 (UTC)[reply]

Who said that it is a chemical compound? Plasmic Physics (talk) 12:00, 30 November 2014 (UTC)[reply]

The first line in the article: "Iron–hydrogen alloy, also known as iron hydride". Iron hydride is a compound and has a fixed formula. Alloys have variable formulae. Biscuittin (talk) 16:42, 30 November 2014 (UTC)[reply]

The article you link to does not refer to a single compound as you suggest, and correctly states that the term has more than one meaning. In this usage, it refers to the alloy. Plasmic Physics (talk) 20:17, 30 November 2014 (UTC)[reply]

Accuracy dispute

Quote: "The hydrogen in typical iron hydride may contribute up to 0.001% of its weight". Iron(I) hydride contains 1.75% hydrogen and Iron(II) hydride contains 1.72% hydrogen. The author seems to be using Iron hydride as a synonym for Iron–hydrogen alloy when it is actually something completely different. Biscuittin (talk) 17:03, 30 November 2014 (UTC)[reply]

The reference I gave, exemplifies how 'iron hydride' is used to refer to the alloy. Plasmic Physics (talk) 20:19, 30 November 2014 (UTC)[reply]

The on-line reference only mentions Iron hydride. It does not say that Iron–hydrogen alloy is a synonym. Biscuittin (talk) 20:27, 30 November 2014 (UTC)[reply]

Even though, it is not explicitly using the term 'iron-hydrogen alloy', we already know that it is using 'iron hydride' to refer to the alloy. Plasmic Physics (talk) 22:11, 30 November 2014 (UTC)[reply]

How do we know? Biscuittin (talk) 22:43, 30 November 2014 (UTC)[reply]

It is called an alloy, and treated as such elsewhere. Plasmic Physics (talk) 22:54, 30 November 2014 (UTC)[reply]

Where? Biscuittin (talk) 23:02, 30 November 2014 (UTC)[reply]

I have amended the article, to remove the confusion. If you are happy with this, I think the accuracy dispute is settled. Biscuittin (talk) 10:14, 1 December 2014 (UTC)[reply]

First of all, the statement fragment "The term may refer to iron with a very low percentage of hydrogen..." repeats what is in the paragraph immediately following. The fragment "...absorbed in the molten state at ordinary pressures..." is incorrect in terms of its exclusivity - absorption is not limited to the molten state. Secondly, the high pressure forms are not compounds. Plasmic Physics (talk) 11:39, 1 December 2014 (UTC)[reply]

OK, I have changed "also known as iron hydride" to "sometimes known as iron hydride". Is this acceptable? My point is that Iron–hydrogen alloy and Iron hydride are not the same thing. Biscuittin (talk) 13:46, 1 December 2014 (UTC)[reply]

Why are you insisting that is the case, when there is an entire article that serves the sole purpose of saying that 'iron hydride' is in fact a synonym for iron-hydrogen alloy among several other meanings? Plasmic Physics (talk) 21:35, 1 December 2014 (UTC)[reply]

I'm not sure whether you are agreeing with me or disagreeing with me. Could you please try to clarify your last statement. Biscuittin (talk) 00:59, 2 December 2014 (UTC)[reply]

I'm saying that I'm frustrated with my inability to correct your understanding of the term 'iron hydride'. I'm saying the page Iron hydride is a set index article, describing the different usages of the term, including as this alloy. I can't figure out whether you're just ignoring it, or haven't bothered to actually read through the article. Plasmic Physics (talk) 01:47, 2 December 2014 (UTC)[reply]

Have you resolved this dispute or do you still need a third party to look over the situation? Tarnas (talk) 05:23, 2 December 2014 (UTC)[reply]

Yes please, we do need a third party. User:Plasmic Physics and I seem to be totally unable to understand each other. Biscuittin (talk) 09:43, 2 December 2014 (UTC)[reply]

I have restored the article to the version by Plasmic Physics dated 1 Dec 2014 and added a top link for clarification. However, I still think the article is misleading because it uses the terms "Iron–hydrogen alloy" and "Iron hydride" as if they were interchangeable. It may be that physicists call Iron–hydrogen alloy Iron hydride but, to a chemist, this is wrong because one is an alloy and the other is a chemical compound. Biscuittin (talk) 13:48, 2 December 2014 (UTC)[reply]

I reject the idea that Iron hydride is a set index article. A set index article (e.g. Copper oxide) is just a list. Iron hydride is an article with references. Biscuittin (talk) 14:03, 2 December 2014 (UTC)[reply]

Perhaps I am out of date. I have just read Interstitial compound and it seems that a compound can be an alloy. Biscuittin (talk) 14:12, 2 December 2014 (UTC)[reply]

I see that User:Plasmic Physics has edited Iron hydride to match his point of view without giving a reference. Biscuittin (talk) 14:22, 2 December 2014 (UTC)[reply]

I've reviewed your situation and the related topics. I'll be back in a few hours to start the discussion and give you my perspective. Tarnas (talk) 21:38, 2 December 2014 (UTC)[reply]

Editing proposal

Nearly all the contributions from User:Plasmic Physics have been unreferenced and, in some cases, inaccurate. As an example of inaccuracy I give this: "Iron is extracted from iron ore by removing the oxygen through combination with a preferred chemical partner, such as hydrogen that is lost to the atmosphere as water". Unless I am much mistaken, the usual way to extract iron is by reducing iron ore with carbon, see Iron_ore#Smelting. Because of this, I intend to restore Iron–hydrogen alloy to the version of 31 August 2014 by 88.104.104.115. I am putting this up for discussion before I do it. Biscuittin (talk) 20:47, 2 December 2014 (UTC)[reply]

I would recommend waiting for a few days until we consider the pending dispute above. It's quite possible that User:Plasmic Physics is contributing useful information but is not good at citing sources, and this wikipedia article is of low enough priority that there is no need to revert it immediately. Tarnas (talk) 21:36, 2 December 2014 (UTC)[reply]