Nomenclature
CAS number: 7447-40-7
Potassium chloride (KCl); Diffu-K (UCB); Kaleorid (Leo Pharm); Kalitabs (Leo Pharm); Kaon-Cl (Altana); Kay-Cee-L (Geistlich); K-Contin (Mundipharma); K-Dur (Schering-Plough); Lento-Kalium (Teofarma); Potassiject (Vetus); Slow-K (Alliance); Span-K (Aspen).
ClK; mol wt 74.55.
Cl 47.56%, K 52.45%.
KCl.
Description and references
Occurs in nature as the mineral sylvine or sylvite. Industrial prepns: Faith, Keyes
& Clark's Industrial Chemicals, F. A. Lowenheim, M.
K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 666-673.
Properties
White crystals or crystalline powder. d 1.98. mp 773°. One gram dissolves in 2.8
ml water, 1.8 ml boiling water, 14 ml glycerol, about 250 ml alcohol.
Insol in ether, acetone. Hydrochloric acid, sodium or magnesium
chlorides diminish its soly in water. d of saturated
aq soln at 15° is 1.172. pH: about
7.Caution
Large doses by mouth can cause G.I.
irritation, purging, weakness and circulatory disturbances.Use
In photography. In buffer solns, electrode cells.
Therapeutic Category
Electrolyte replenisher.
Therapeutic Category (Veterinary)
Potassium supplement.
Keywords
Replenishers/Supplements; Electrolyte