Potash
salt mixtures that contain potassium in water-soluble form, mainly: halite, sylvite, carnallite, kieserite
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.
