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potassium permanganate

noun

, Chemistry.
  1. a very dark purple, crystalline, water-soluble solid, KMnO 4 , used chiefly as an oxidizing agent, disinfectant, laboratory reagent, and in medicine as an astringent and antiseptic.


potassium permanganate

noun

  1. a dark purple poisonous odourless soluble crystalline solid, used as a bleach, disinfectant, and antiseptic. Formula: KMnO 4 Systematic namepotassium manganate(VII)
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


potassium permanganate

  1. A dark purple crystalline compound used as an oxidizing agent and disinfectant and in deodorizers and dyes. Chemical formula: KMnO 4 .


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Word History and Origins

Origin of potassium permanganate1

First recorded in 1865–70
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Example Sentences

Potassium permanganate, however, oxidizes the poison completely.

Add a crystal or two of potassium permanganate, and wait till it settles, and examine the sediment for diatoms with a microscope.

Solutions of potassium permanganate may be kept for a month or so without much change.

(for unroasted coffee) of 1-percent potassium permanganate and let stand for 15 minutes at room temperature.

Potassium permanganate oxidizes it first to methylfurazane-carboxylic acid and then to furazanedicarboxylic acid.

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