Potash

Definitions

1. The water-soluble part of wood ash, used for making soap and glass and as a fertilizer (chemically speaking, an impure form of potassium carbonate (K₂CO₃) mixed with other potassium salts).
   countable, uncountable
2. A surname.
3. Potassium. Chiefly used in the names of compounds of the form "... of potash".
   archaic, countable, uncountable
4. A class of potassium minerals, of similar applicability to potassium carbonate, such as being a fertilizer. (ie. potassium chloride, potassium hydroxide)
   countable, uncountable

Equivalents

Examples

“permanganate of potash”

potassium permanganate

CEFR level