Talk:Magnesium hydride

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Section on fire hazard?

Since magnesium hydride decomposes at 287 C and 1 bar, presumably into magnesium in powder form, wouldn't it be a highly explosive material in a fire? In the quantities needed for a fuel one would expect a brilliant UV flash like a huge flashbulb that would permanently blind anyone seeing it. A section on its hazards in a fire by someone with expert knowledge would be a valuable addition. Vaughan Pratt (talk) 20:41, 4 July 2021 (UTC)[reply]

Remove claims of passive hydrogen capturing capabilities?

The claims weren't cited and there is this video by chemistry PhD Philip E. Mason (published under his pseudonym Thunderf00t) refuting the claims. https://www.youtube.com/watch?v=-8NQkOeRNpg Added a citation needed tag for now. Florian Nord (talk) 02:27, 2 December 2021 (UTC)[reply]

Apparently somebody else went as far as deleting the whole section proactively. The rest didn't seem to be properly cited anyway so I'd guess it's alright. Florian Nord (talk) 02:31, 2 December 2021 (UTC)[reply]

Yep. I've deleted the whole section. All the sources cited were 15+ years old anyway.

The problem is that magnesium weights 24 AMU, while the two hydrogens weigh only 2 AMU. This is why all of these hydrides suck as a form of energy storage - the fact that you need extra atoms (that weigh many times as much as hydrogen) means that the storage medium takes up more space than the actual hydrogen you're trying to store. In the case of magnesium hydride, only 7.7% of your storage medium is, by weight, hydrogen. DASL51984 ^{(Speak to me!)} 00:55, 7 December 2021 (UTC)[reply]

A top tip for future reference: the patent office checks for absence of prior art in the legal sense and grants patents on that basis alone - not on wether they think the invention will work or is even physically feasible; that consideration is completely outside their remit. 2A01:CB0C:CD:D800:F944:9644:CCFF:2D5F (talk) 16:47, 7 January 2023 (UTC)[reply]