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)

potassium permanganate

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

Word History and Origins

Origin of potassium permanganate¹

First recorded in 1865–70

Example Sentences

Potassium permanganate, however, oxidizes the poison completely.

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg