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"It can be used as a medium for volatile compounds, as materials stored within the dry water can be reduced to powder and stabilized – reducing not only the vol
by jamestimmins 8y ago
"It can be used as a medium for volatile compounds, as materials stored within the dry water can be reduced to powder and stabilized – reducing not only the volatility of the substance, but also its weight for transport."
Anybody know how it's possible that adding an additional substance to a chemical compound could decrease it's weight? Or does it just mean that less volatility means it can be transported in lighter containers?
- umvi 8y agoAssuming it's referring to lowering the density. Powder is less dense than liquid.
- jamestimmins 8y agoBut doesn't that just mean "It weighs less when you carry less"? That sounds like a truism.
- Someone 8y agoI think https://www.soci.org/chemistry-and-industry/cni-data/2010/22/dry-water-making-waves https://www.soci.org/chemistry-and-industry/cni-data/2010/22... answers that: Kept at -20°C, methane hydrate stores about as much methane per liter at room pressure as LNG in a compressed cylinder. So, instead of a heavy LNG cylinder, I guess you can do with a Dewar flask. Also, it seems it requires less energy and less time to create methane hydrate using dry ice. It likely also is advantageous that this gives you a ‘fluid’ that you can easily pump around.
- smsm42 8y agoI understood it as less total weight it requires, as instead of thick hermetically sealed tank needed to hold a volatile gas one could (probably) use a lighter container for less volatile substances. This of course assumes extracting the volatile substance back requires some procedure that can not happen by accident in transport.