Potassium or sodium hydroxide (caustic soda).
An alkaline liquid made by leaching ashes (usually wood ashes).
A short side line, connected with the main line; a turn-out; a siding.
To treat with lye.
Employing sodium.
The chemical element (symbol Na) with an atomic number of 11 and atomic weight of 22.990. It is a soft, waxy, silvery, reactive alkali metal that is never found unbound in nature.