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ammonium sulfate

noun

, Chemistry.
  1. a white, crystalline, water-soluble solid, (NH 4 ) 2 SO 4 , used chiefly as a fertilizer.

ammonium sulfate

  1. A brownish-gray to white crystalline salt used in fertilizers and water purification. Chemical formula: (NH 4 ) 2 SO 4 .

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Word History and Origins

Origin of ammonium sulfate1

First recorded in 1800–85

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ammonium stearateammonium sulphate

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