potassium chloride

noun Chemistry.

a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.

Nearby words

  1. potassium bitartrate,
  2. potassium bromate,
  3. potassium bromide,
  4. potassium carbonate,
  5. potassium chlorate,
  6. potassium cobaltinitrite,
  7. potassium cyanide,
  8. potassium dichromate,
  9. potassium diphosphate,
  10. potassium feldspar

Origin of potassium chloride

First recorded in 1880–85

Also called potassium muriate, potash muriate.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for potassium chloride

potassium chloride


a white soluble crystalline substance used as a fertilizer and in medicine to prevent potassium deficiency. Formula: KCl
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for potassium chloride

potassium chloride

A white crystalline solid or powder used widely in fertilizers and in the preparation of most potassium compounds. It occurs naturally as the mineral sylvite. A unique property of potassium chloride is that it is more soluble in hot water, but less soluble in cold water, than sodium chloride is. Chemical formula: KCl.
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