Search results
Results from the WOW.Com Content Network
Potassium permanganate is an inorganic compound with the chemical formula KMnO 4.It is a purplish-black crystalline salt, which dissolves in water as K + and MnO − 4 ions to give an intensely pink to purple solution.
In a strongly basic or alkaline solution, permanganate(VII) is reduced to the green manganate ion, MnO 2− 4 with an oxidation state of +6. MnO − 4 + e − → MnO 2− 4. In a neutral solution, however, it gets reduced to the brown manganese dioxide MnO 2 with an oxidation state of +4. 2 H 2 O + MnO − 4 + 3 e − → MnO 2 + 4 OH −
Potassium manganate is the inorganic compound with the formula K 2 MnO 4.This green-colored salt is an intermediate in the industrial synthesis of potassium permanganate (KMnO 4), a common chemical. [1]
In weak acidic medium MnO − 4 can not accept 5 electrons to form Mn 2+. Instead, it accepts only 3 electrons and forms solid MnO 2 by the following reaction: MnO − 4 + 4 H + + 3 e − → MnO 2 + 2 H 2 O; E° = +1.69 V. In a strongly basic solution, with the concentration c (NaOH) >1 mol dm −3, only one electron is accepted to produce ...
This page was last edited on 8 January 2022, at 11:37 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Chemical chameleon reaction. The chemical chameleon is a redox reaction, well known from classroom demonstrations, that exploits the dramatic color changes associated with the various oxidation states of manganese.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Structure of manganate. In inorganic nomenclature, a manganate is any negatively charged molecular entity with manganese as the central atom. [1] However, the name is usually used to refer to the tetraoxidomanganate(2−) anion, MnO 2−