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Author: Subject: Can sublimation occur in CH4?
ALTV02
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[*] posted on 15-6-2016 at 17:55
Can sublimation occur in CH4?


As we should or all know, CH4 is the chemical name for methane gas. Since BBC science posted an article on CO2 being solidified, my questions are:

a) Can CH4 be solidified, and
b) What wouuld the solid form look like?

Thank you.
http://www.bbc.com/news/science-environment-36494501
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DraconicAcid
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[*] posted on 15-6-2016 at 17:58


Yes, it can be solidified, at extremely low temperatures. It would probably look like frost or wax.



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Ozone
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[*] posted on 15-6-2016 at 18:29


That article is talking about fixing CO2 as limestone.

Aside, the most common form of "solid" methane are the methane clathrates:

https://en.wikipedia.org/wiki/Methane_clathrate

While they can be isolated and handled, they are unstable at STP and "sublime" if you will--that is the clathrates (hydrates) are more like melting ice and releasing the caged methane. Unless you are talking about the water-part, it's not a true phase transition.

Cool, though.

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15-6-2016 at 20:33
PHILOU Zrealone
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[*] posted on 16-6-2016 at 10:21


Methane hydrates are also a solid form of Methane that forms onto the sea bottom and that looks like ice but that burns once set in flame in the open air.



PH Z (PHILOU Zrealone)

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