The opposite of silica gel...
Dry Water
31–40 of 192 posts
Re: Dry Water
#32Earlier quoted context omitted.
It's moot in any case, as nobody is considering storing CO2 by dissolving it in water. Supercritical fluid is where it's at.
Sounds interesting - Do you have a link for that, or if you've got time could you explain?
There's a lot of literature on this; Wikipedia has a decent starting point: https://en.wikipedia.org/wiki/Carbon_sequestration#Geologica...
TL;DR: if you compress CO2 to above 73 bar, it becomes supercritical fluid, which has a density almost like water and which does not mix with water. If we inject this fluid into underground saline aquifers, we can trap it indefinitely. Basically exactly the reverse of producing oil and gas. In this case you're transporting and injecting pure CO2, not water with 0.1% - 1% CO2.
It's been done at large scale since the mid-1990s, so we know it's viable. Lots of research and development on details/optimization still to be done, but we know it will work and we know we can scale it up.
Re: Dry Water
#33Huh, the dehydrated water in Space Quest actually isn't that much of a joke.
Re: Dry Water
#34Can you eat it?
Yeah, modulo particle size ( https://www.foodnavigator.com/Article/2018/01/18/EFSA-raises... ) it's inert (used as an anticaking agent, additive number E551), but don't breathe it in; silicosis is not much fun. (The FDA limit is 2% by mass of product, but it's silica. Silica is _extremely_ chemically stable.)
Could that lead to cysts in the GI tract?
Re: Dry Water
#35Apparently one can make dry water with a blender - mix fine silica powder and water in a 1:19 ratio (by mass) and put it in a blender for a few minutes. I'm not going to risk my blender to try it, so who's first?
Blenders can be replaced. I would worry more about silicosis. https://en.wikipedia.org/wiki/Silicosis
Should be ok unless you're making dry water as a daily job.
Re: Dry Water
#36Re: Dry Water
#37Can you eat it?
If you feel like eating some water, I'd recommend cucumbers instead.
Re: Dry Water
#38The patent getting snatched up by cosmetics and then re-discovered almost 50 years later makes me wonder how many cool advancements have been lost to industries that couldn't find any value from them.
Look at the patents held by Univerisities, very few will be utilized commercially.
On the other hand oil companies notoriously bought up patents for the express purpose of keeping them from being used in commercial application.
Re: Dry Water
#39Apparently one can make dry water with a blender - mix fine silica powder and water in a 1:19 ratio (by mass) and put it in a blender for a few minutes. I'm not going to risk my blender to try it, so who's first?
The only video I could find of the process: https://www.youtube.com/watch?v=bVAPUxSH_6Q
I'd like to see someone interact with it - is it possible to get "wet" from dry water? Can you get the water back out?
Re: Dry Water
#40What happens if you add liquid water?
Reminds me a of a quote from Steven Wright the American comedian: "I bought some powdered water, but I don't know what to add."