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potash noun

  /ˈpɑt.æʃ/ , /ˈpɒt.æʃ/
  • 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).
 potasse
caustic potash
potasse caustique
potash lye
hydroxyde de potassium
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