caustic potash
Noun
Meaning
a potassium compound often used in agriculture and industry
Source: WordNetSynonyms
Hypernyms
Examples
After heating this substance with calcium hydroxide (slaked lime), a far more strongly basic substance known as caustic potash ( potassium hydroxide ) was produced.
Davy discovered potassium in 1807, deriving it from caustic potash (KOH).
Potassium was first derived by electrolysis of caustic potash (aka potassium hydroxide ), in 1807. citation Terminology Potash refers to potassium compounds and potassium-bearing materials, the most common being potassium chloride (KCl).