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persulfate

[per-suhl-feyt]
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noun Chemistry.
  1. a salt of persulfuric acid, as potassium persulfate, K2S2O5 or K2S2O8.
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Origin of persulfate

First recorded in 1805–15; per- + sulfate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018