ammonium sulfate

American  

noun

Chemistry.

1. a white, crystalline, water-soluble solid, (NH4 ) 2 SO 4 , used chiefly as a fertilizer.

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ammonium sulfate Scientific  

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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Etymology

Origin of ammonium sulfate

First recorded in 1800–85

Example Sentences

Growing even modest quantities of mycoprotein requires significant inputs, and the spores must be cultivated in large metal tanks filled with sugar-rich feedstock and added nutrients such as ammonium sulfate.

From Science Daily • Nov. 21, 2025

The method extracted a higher percentage of the REEs more quickly than conventional leaching and needed less ammonium sulfate.

From Science Magazine • Nov. 1, 2022

The railroad says it also carries fertilizers, including phosphate, urea, ammonium sulfate, ammonium nitrate and anhydrous ammonia.

From Seattle Times • Mar. 20, 2022

So she and her colleagues mixed in ammonium sulfate or urea to add more nutrients, as well as compressing it into easier-to-manage pellets.

From Nature • Sep. 12, 2017

When added together, the two different molecules split apart and recombine as ammonium sulfate and iron nitrate.

From New York Times • Jun. 24, 2013