Talk:Water-reactive substances

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What

What are alkaline earth metals 41.13.12.144 (talk) 20:00, 1 June 2023 (UTC)[reply]

https://en.m.wikipedia.org/wiki/Alkaline_earth_metal Cloud 223 (talk) 00:51, 8 September 2023 (UTC)[reply]

Radium and flourine

How about the reaction of radium and water? Or that between flourine and water? Radium is an alkaline earth metal, and flourine is a halogen. 74.135.194.87 (talk) 21:48, 4 February 2024 (UTC)[reply]

If you have an example then feel free to include it. I would imagine radium reactions would be especially bad since it's radioactive. Recon rabbit 03:40, 5 February 2024 (UTC)[reply]

Thanks. It talks about hydroxides of calcium, strontium, and barium being slightly water soluble, but doesn't say about radium hydroxide. It mentions Ra in the alkaline Earth metals section, but doesn't say about the reaction.2600:1008:B130:BCF8:F99C:B906:144D:272F (talk) 17:00, 5 February 2024 (UTC)[reply]

There are not any real sources on this, though. Only that it "probably" reacts violently with water. I don't think anyone has actually done it. [1] Recon rabbit 17:25, 5 February 2024 (UTC)[reply]

There is a wikipedia page Radium hydroxide. It doesn't say how vigorous the reaction with water is, but I'd imagine quite vigorously. 74.135.194.87 (talk) 18:54, 5 February 2024 (UTC)[reply]

I did the research and added what I could find related to your concern. Recon rabbit 20:15, 5 February 2024 (UTC)[reply]

Thanks. I saw that now for Radium and water and for fluorine and water. Thanks! 74.135.194.87 (talk) 21:02, 5 February 2024 (UTC)[reply]

Problems?

Who invented this terminology? It would be reassuring to see a source, otherwise this article might appear to be some sort of WP:SYNTHESIS. Some articles are invented by well-intentioned folk who are not chemistry professionals. This one seems to be motivated by someone's impressionable experience with alkali metals, but a vast array of compounds are water reactive, many being electrophilic (AcCl, TiCl4) and many are desiccants. Sulfuric acid, perhaps the most abundant synthetic compound, is highly reactive toward water but it gets little mention.

One possibility: redirect the useful parts of this to some combination of air-free technique, Air sensitivity, and hydrolysis.--Smokefoot (talk) 14:18, 25 September 2024 (UTC)[reply]

The terminology is a simplification of the hazard class used by the Globally Harmonized System of Classification and Labelling of Chemicals and transportation authorities (at least in the US and UK): "Substances and mixtures which, in contact with water, emit flammable gases" or "Dangerous when wet". Useful to firefighters. Recon rabbit 14:30, 25 September 2024 (UTC)[reply]

Thanks. We should cite that source for the opening sentence.--Smokefoot (talk) 15:06, 25 September 2024 (UTC)[reply]