- the water-soluble part of the ash formed by burning plant material; used for making soap, glass and as a fertilizer
- (chemistry) an impure form of potassium carbonate (K2CO3) mixed with other potassium salts
- (chemistry) (archaic) in the names of compounds of the form "... of potash", potassium (for example, "permanganate of potash" = potassium permanganate)
Etymology: Potash comes from the word potasch, coined by the Dutch in 1598. The literal translation is pot ash, because it was made by burning wood to ashes in a large pot. The English word Potash dates back to 1648.
- Dutch: potasch
- German: Pottasche
- Italian: potassa
- Spanish: potasa
(trans-top, potassium carbonate etc)
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