Talk:Halomethane

[Untitled]
This needs an organic chemist to fill in the gaps. Leonard G. 01:08, 15 Jul 2004 (UTC)

Global warming potential
I added some text after "Allan Thornton, President of the Environmental Investigation Agency, a non-governmental, environmental watchdog, says that HFCs are up to 12,500 times as potent as carbon dioxide in global warming." I clarified why this is true, with a wikilink to Global warming potential. Some HFCs actually have GWPs far in excess of 12,500. I don't like the idea of attributing the GWP parameter, which is extensively established in the scientific literature, to some claim that the president of some oddly-named non-governmental agency "says." But I left it.

The added text is sufficiently attributed in the main article on GWP, and I tried to keep it relatively simple. HFCs are very stable and they remain in the atmosphere for a long time; also, large molecules have more vibrational modes than smaller ones (see infrared spectroscopy). The C–F bonds are also significant, because they're almost nonexistent in nature. This means that HFCs can absorb wavelengths that aren't absorbed much by the natural atmosphere. Roches (talk) 08:40, 1 July 2015 (UTC)

External links modified
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External links modified
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Fire Extinguishing
This section makes reference to "v/v" twice. I'm not sure what "v/v" means, and I'm probably not the only one. Any chance we could get a link or an explanation?

*Septegram*Talk*Contributions* 14:56, 17 August 2018 (UTC)