English word potash comes from Dutch potasch (Spelling before 1946/47 for potas (potash).)
| Dictionary entry | Language | Definition |
|---|---|---|
| potasch | Dutch (nld) | Spelling before 1946/47 for potas (potash). |
| potash | English (eng) | (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). The water-soluble part of the ash formed by burning plant material; used for making soap, glass and as a fertilizer. |