Potash: Deposits, Processing, Properties and Uses

Potash is the term generally given to potassium chloride, but it is also loosely applied to the various potassium compounds used in agriculture: po­ tassium sulfate, potassium nitrate or double salts of potassium and magne­ sium sulfate (generally langbeinite, K S0 • 2MgS0 ). Sometimes the var­ 2 4 4 ious compounds are differentiated by the terms muriate of potash, sulfate of potash, etc. When referring to ores, or in geology, all of the naturally­ found potassium salts are called "potash o...