Manganic Acid


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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Manganic Acid

 

H2MnO4, a weak inorganic acid corresponding to hexavalent manganese. It has not been produced in free form and exists only in aqueous solutions. The anion MnO2 has a green tint. Manganic acid decomposes upon heating to form permanganic acid, HMnO4, and manganese dioxide, MnO2. Manganic acid salts are known as manganates, the most valuable of which is K2MnO4, which is used in the preparation of potassium permanganate, KMnO4 (according to the reaction 2K2MnO4 + C12 = 2KMnO4 + 2KC1).

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