To treat with potassium.
A class of potassium minerals, of similar applicability to potassium carbonate, such as being a fertilizer. (ie. potassium chloride, potassium hydroxide)
An impure form of potassium carbonate (K₂CO₃) mixed with other potassium salts.
The water-soluble part of the ash formed by burning plant material; used for making soap and glass and as a fertilizer.