ammonium persulfate

noun

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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Dictionary Entries Near ammonium persulfate

ammonium perchlorate

ammonium persulfate

ammonium phosphate

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Cite this Entry

“Ammonium persulfate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ammonium%20persulfate. Accessed 22 May. 2022.

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