Potassium permanganate KMnO

One other important compound of manganese is potassium permanganate, KMnO . This is an intensely violet-colored material much used as an oxidizing agent in the laboratory. (It is too expensive to use on a large scale in industry, chlorine is more likely to be used.)... 

The oxidant was prepared from 130 g of crystalline potassium permanganate (KMnO, ) and 25 g of CUSCV5H2O by grinding them together in a mortar until a fine powder was obtained. 

Such carbonyls may be further oxidized using potassium permanganate (KMnO and perchloric acid (HCIO4) to convert all of these groups into carboxylic acids. Once functionalized in this manner, the nanotubes can be fully dispersed in aqueous systems. Kordas et al. (2006) used these derivatives to print nanotube patterns on paper or polymer surfaces to create conductive patterns for potential use in electronic circuitry. The carboxylates also may be used as conjugation sites to link other ligands or proteins to the nanotube surface using a carbodiimide reaction as previously discussed (Section 1, this chapter Chapter 2, Section 1.11 Chapter 3, Section 1). 

Potassium permanganate (KMnO ) is a purplish crystal-like oxidizing compound used as an antiseptic and disinfectant to inhibit the growth of harmful skin microorganisms and bacteria. Before antibiotics were available, it was used as a treatment for trench mouth and impetigo. 

The synthesis of carboxylic acids by the oxidation of alkenes is a two-step process. In the first step, a hot basic potassium permanganate (KMnO ) solution oxidizes an alkene, and in the second step, the oxidized alkene is acidified. The process cleaves the Ccirbon backbone at the carbon-carbon double bond to produce two smaller carboxylic acid molecules. For example, oleic acid (CH3(CH2)yCH=CI-l(CI-l2)yCOOH) yields of mixture of nonanoic acid (CH3(CH2)7C00H) and nonadioic acid (HOOC(CH2)7COOH). 

Potassium permanganate, KMnO. Oxidizes alkenes under neutral or acidic conditions to give carboxylic acid double-bond cleavage products (Sections 7.9). 

Potassium permanganate (KMnO ) solution. To prepare, dissolve 1.5 g (10 mmol) of KMnO and 10 g (72 mmol) of potassium carbonate (K COj) in 1.25 mL of 2.5 N sodium hydroxide (NaOH) solution and add 200 mL of deionized water. Store at room temperature for a maximum of 3 months. 

Hydrogen peroxide (H Op can be titrated with potassium permanganate (KMnO ) in an acid medium. H,O, is the reducing agent and KMnO is the oxidising agent. 

Discussion When a solution of hydrogen peroxide is treated with potassium permanganate, KMnO, oxygen is set free, one-half of which comes from the peroxide and one-half from the permanganate. The volume of the gas liberated in this way from a known volume of a solution of hydrogen peroxide is a measure of the strength of the latter. 

Potassium permanganate KMnO 7722-64-7 168.034 purp orth cry dec 2.7 7.60"" reac EtOH... 

Under the conditions of cold dilute potassium permanganate (KMnO ), the aldehyde is oxidized to the carboxylic acid with the carbon skeleton number unchanged. Hence,... 

Chemical oxidation reducing salicylic acid from 326 mg/l using potassium permanganate (KMnO ) Carbon type Carbon adsorption fallowing treatment with KMn04 Bloaugmentatlon following carbon adsorption ... 

The same reaction can also be carried out using cold alkaline potassium permanganate (KMnO ) followed by treatment with aqueous base (Following fig.). It is important to keep the reaction cold since potassium permanganate can cleave the diol by further oxidation (Fig. E). 

In the case of ionic compounds such as potassium permanganate (KMnO, the potassium is ionized into K cations that counter the negative charge of the MnO anion. You can therefore solve for the oxidation state of Mn two separate ways ... 

Permanganate treatment Fibers are soaked in a permanganate solution which leads to the formation of cellulose radical that would result in graft polymerization. The concentration of permanganate solution is a vital parameter and therefore needs to be carefully controlled. Potassium permanganate (KMnO ) is the typical choice resulting in the reaction as observed in Equations 9.4a and 9.4b [22]. 

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