ammonium persulfate


Definition of ammonium persulfate

: a colorless crystalline salt (NH4)2S2O8 used as an oxidizing agent and for improving dense photographic negatives

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First Known Use of ammonium persulfate

1891, in the meaning defined above

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The first known use of ammonium persulfate was in 1891

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Cite this Entry

“Ammonium persulfate.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2020.

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