The invention relates to Group 1 metal/porous metal oxide compositions
comprising porous metal oxide selected from porous titanium oxide and
porous alumina and an alkali metal or an alkali metal alloy. The
compositions of the inventions are described as Stage 0 and I materials.
These materials differ in their preparation and chemical reactivity. Each
successive stage may be prepared directly using the methods described
below or from an earlier stage material. Stage 0 materials may, for
example, be prepared using liquid alloys of Na and K which are rapidly
absorbed by porous metal oxide under isothermal conditions, preferably at
or just above room temperature, to form loose black powders that retain
much of the reducing ability of the parent metals. When the low melting
Group 1 metals are absorbed into the porous metal oxide at about
150.degree. C., an exothermic reaction produces Stage I material, loose
black powders that are stable in dry air. Further heating forms higher
stage materials of unknown composition. It is believed that Stage I
higher materials represent reductions of the porous metal oxide after
absorption of the Group 1 metal. Preferred Group 1 metal/porous metal
oxide compositions of the invention are those containing sodium,
potassium, or sodium-potassium alloys with sodium and sodium-potassium
alloys being most preferred. Each stage of the Group 1 metal/porous metal
oxide composition of the invention may be used as a reducing agent
reacting with a number of reducible organic materials in the same manner
known for alkali metals and their alloys.