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2. Potassium permanganate - Wikipedia

   en.wikipedia.org/wiki/Potassium_permanganate

   The value determined is known as the permanganate value. In analytical chemistry, a standardized aqueous solution of KMnO 4 is sometimes used as an oxidizing titrant for redox titrations (permanganometry). As potassium permanganate is titrated, the solution becomes a light shade of purple, which darkens as excess of the titrant is added to the ...

3. Permanganate - Wikipedia

   en.wikipedia.org/wiki/Permanganate

   A permanganate (/ p ər ˈ m æ ŋ ɡ ə n eɪ t, p ɜːr-/) [1] is a chemical compound with the manganate(VII) ion, MnO − 4, the conjugate base of permanganic acid. Because the manganese atom has a +7 oxidation state, the permanganate(VII) ion is a strong oxidising agent. The ion is a transition metal ion with a tetrahedral structure. [2]

4. Glycerol and potassium permanganate - Wikipedia

   en.wikipedia.org/wiki/Glycerol_and_potassium...

   Crystalline potassium permanganate (KMnO 4) is placed in an evaporating dish. A depression is made at the center of the permanganate powder and glycerol liquid is added to it. The white smoke-like vapor produced by the reaction is a mixture of carbon dioxide gas and water vapor.

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   www.aol.com/24-hour-stores-near-40-221910979.html

   In 1963, a 7-Eleven store near an Austin, Texas, university began to stay open all night for student shoppers. It was such a success that other stores in the chain adopted the 24/7 hours, and ...

6. Chemical chameleon - Wikipedia

   en.wikipedia.org/wiki/Chemical_chameleon

   Sodium hydroxide, potassium hydroxide, and ammonium hydroxide can be used to alkalize the permanganate solution, while a variety of reducing agents can be used, sugars being common. [ 1 ] [ 5 ] [ 8 ] A similar demonstration involves soaking paper in alkalized permanganate solution, which produces the same color changes as the paper is oxidized ...

7. Potassium manganate - Wikipedia

   en.wikipedia.org/wiki/Potassium_manganate

   The one-electron reduction of permanganate to manganate can also be effected using iodide as the reducing agent: 2 KMnO 4 + 2 KI → 2 K 2 MnO 4 + I 2. The conversion is signaled by the color change from purple, characteristic of permanganate, to the green color of manganate.