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potassium sulfate

noun, Chemistry.
a crystalline, water-soluble solid, K 2 SO 4 , used chiefly in the manufacture of fertilizers, alums, and mineral water, and as a reagent in analytical chemistry.
Origin of potassium sulfate
First recorded in 1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Historical Examples
  • It should be filtered when not clear or when crystals of ammonium or potassium sulfate are formed.

  • It contains a lot of extra alumina, but after roasting in a kiln the potassium sulfate can be leached out.

    Creative Chemistry

    Edwin E. Slosson

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