potassium chloride(redirected from K-lease)
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KC1, a salt; colorless crystals. Density, 1.989 g/cm3; melting point, 768°C. Solubility, 34.7 g per 100 g H2O at 20°C (56.6 g at 100°C).
Potassium chloride occurs in nature as sylvite. Natural sylvinite (a mixture of sylvite, KC1, and halite, NaCl) and the mineral carnallite, KCl⋅MgCl2⋅6H2O, serve as the raw material in the the preparation of potassium chloride. Potassium chloride is used as a potassium fertilizer and as a raw material for the preparation of other potassium salts and potassium hydroxide. In medicine, potassium chloride solutions are used internally or intravenously for conditions accompanied by potassium deficiency (for example, during treatment with certain preparations or after persistent vomiting) and for cases of cardiac arrhythmia. [ll–639–4]