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Renewable Energy,Na K, go look it up on google. heres what I found in a few miniutes; Explosive in contact with water, acids,alcohols etc. Highly corrosive. Toxic- effecting eyes and skin and respiritory system. Things to be avoided, contact with carbon dioxide, hydrogen peroxide Teflon, and metal oxides.
Na K is intended forindustrial use, and as such there is no expectation of consumer exposure to Na K liquid. There is more, ie hints on handling etc.
Use air for pressurisation. I presume you want to transfer heat from a remote heat source using the Na K. Unless you are an expirenced engineer, with knowlage of the engineering requirements of this material, don't think of it, a nice thought, but the engineering must be right the first time, or you might not get a second chance. Ian S C

Hi Ian,
thank you for your suggestions. At the moment I'm only collecting information. I know that this alloy is dangerous but I read that in same project it was used.
When I'll start to build my SE I'll keep in consideration all infos coming from this forum.

The only place I'v had expirience of sodium being used to transfer heat is in the exhaust valves of a Pratt & Whitney R 1830 aircraft engine, it was proberbly during WW2 that these valves were first used as the engines were upgraded. I imagine thatmost of the larger aero engines where so fitted. The valves are normal looking poppet valves, but they are hollow, right from the head, and the stem, theres a small amount of sodium that sloshes back and forth as the valve opperates, conducting heat away from the head of the valve. Ian S C