Moltox
Moltox : A process for separating oxygen from air by selective absorption in a molten salt mixture at high temperature. Invented by D. C. Erickson of Energy Concepts, and developed by Air Products and Chemicals. The salts are a mixture of the nitrites and nitrates of sodium and potassium. The reaction is: NO2 + O2 ? NO3 -. (Check source for accuracy of chemical formula)