permanganate


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permanganate

a salt of permanganic acid
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Permanganate

 

a salt of permanganic acid (HMnO4). Permanganate crystals are nearly black, with a greenish violet hue, while permanganate solutions are usually tinted the red-violet color of the Permanganate ion. Permanganates of sodium and bivalent metals dissolve freely in water, but KMnO4 is only sparingly soluble. Permanganates are extremely unstable upon heating. For example, KMnO4 decomposes at temperatures as low as 200°C according to the equation 2KMnO4 = K2MnO4 + MnO2+ O2.

Permanganates are strong oxidizing agents, especially in an acid medium; thus, for example, Mn(VII) reduces to Mn(II), as in MnSO4. Their use as oxidizing agents in chemistry is widespread, and in medicine permanganates are used as disinfectants and in the treatment of burns.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

permanganate

[¦pər′maŋ·gə‚nāt]
(inorganic chemistry)
A purple salt of permanganic acid containing the MnO4- radical; used as an oxidizing agent and a disinfectant.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Methylene blue counter stained smears showed lesser fluorescence of debris (10.8%) compared to potassium permanganate, toluidine blue and blue ink (21.6%, 45.1%, and 30.4%).
Creation of [Sb.sub.2][Se.sub.3] Nanorods Using Hydrazine Hydrate ([N.sub.2][H.sub.4]-[H.sub.2]O) and Morphological Changes Induced by Permanganate (Mn[O.sub.4.sup.-]).
In our previous publications, potassium permanganate agar method and iodine starch agar method were used to determine TAC in urine and serum [21, 22].
karongae eggs for five minutes in 50ml solutions of (1) 50 mg/l potassium permanganate (P50), (2) 500 mg/l formalin (F500), (3) 1000mg/l sodium chloride (NaCl1000), (4) 5000 mg/l sodium chloride (NaCl5000), and (5) control (CONTR.) with no chemical treatment, respectively.
The management of terminal carcinoma with oral potassium permanganate. Brit.
Potassium permanganate is a well-known, widely available agent, which has been used throughout history.
A constant volume of standard oxidation agent (iodine or potassium permanganate) was added to a series of diluted test samples (double dilution), and measurements were performed in a point-by-point manner.
It also adds a section on non-specific methods for the destruction of hazardous organic chemicals, including potassium permanganate oxidation and advanced oxidation processes, such as the Fenton reaction and photolysis.
Potassium permanganate, an oxidizer, is the primary precursor chemical used in producing cocaine.
The 620 can handle harsh chemicals in the water and wastewater treatment industry, including sodium hypochlorite, ferric chloride, sodium bisulfate, aluminum, fluoride, carbon and lime slurries, polymers, aqueous ammonia, potassium permanganate and caustic slurries.