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potash 音標拼音: [p'ɑt,æʃ] n. 堿水 鹼水 potash n 1: a potassium compound often used in agriculture and industry [synonym: {potash}, {caustic potash}, {potassium hydroxide}] Potash \Pot"ash`\, n. [Pot ash.] (Chem.)
(a) The hydroxide of potassium hydrate, a hard white brittle substance, {KOH}, having strong caustic and alkaline properties; -- hence called also {caustic potash}. (b) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash). [1913 Webster]
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