Found 2 items, similar to caustic potash.
English → English (WordNet) Definition: caustic potash caustic potash n : a potassium compound often used in agriculture and industry [syn: potash, potassium hydroxide]
English → English (gcide) Definition: caustic potash 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] Potassa \Po*tas"sa\, n. [NL., fr. E. potash.] (Chem.) (a) Potassium oxide. [Obs.] (b) Potassium hydroxide, commonly called caustic potash. [1913 Webster]