Potash
Potash is a generic term for a chemical compound. It means the mixture of potassium hydroxide and potassium carbonate left over in ashes. The wood was burnt to produce ashes, which were dissolved in water. The potash was then reacted with fat to produce soap.
Potash Media
Polycrystalline potash, with a U.S. penny for reference. (The coin is 19 mm (0.75 in) in diameter and copper in color.)
The very first U.S. patent ever to be issued was for an improvement "in the making of Pot ash and Pearl ash by a new Apparatus and Process"; it was signed by then President George Washington.
A covered hopper car in a Canadian train for shipping potash by rail
Global imports/exports of potash in 1937
A postcard of the Kalium Chemicals plant in Belle Plaine, Saskatchewan
