potassium sulfate

noun

, Chemistry.

1. 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.

Word History and Origins

Origin of potassium sulfate¹

First recorded in 1880–85

Example Sentences

It should be filtered when not clear or when crystals of ammonium or potassium sulfate are formed.

From Project Gutenberg

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

From Project Gutenberg