Sodium hypochlorite oxidations

The pH of the chlorine dioxide reaction mixture must be maintained in the 2.8—3.2 pH range, otherwise decreased conversion yields of chlorite to chlorine dioxide are obtained with by-product formation of chlorate. Generator efficiencies of 93% and higher have been demonstrated. A disadvantage of this system is the limited storage life of the sodium hypochlorite oxidant solution. 

Among the oxidative procedures for preparing azo compounds are oxidation of aromatic amines with activated manganese dioxide oxidation of fluorinated aromatic amines with sodium hypochlorite oxidation of aromatic amines with peracids in the presence of cupric ions oxidation of hindered aliphatic amines with iodine pentafluoride oxidation of both aromatic and aliphatic hydrazine derivatives with a variety of reagents such as hydrogen peroxide, halogens or hypochlorites, mercuric oxide, A-bromosuccinimide, nitric acid, and oxides of nitrogen. 

There are no data regarding the stereochemistry for systems with two strong a-activating groups, but even the carbanions formed from such compounds may react further before complete rotation. Sodium hypochlorite oxidation of cis and trans (98) gave epoxides with retained... 

Figure 7. Characteristics of methidathion and its sodium hypochlorite oxidation products on 1% DEGs at 200°C with flame photometric detection (P-mode)...

Sodium hypochlorite oxidizes aryldihydroxyboranes to phenols and trialkylboranes to the cone-sponding alcohols. Use of sodium hypobromite for the oxidation of phenyldihydroxyborane gave... 

Preparation. Thompson et al. recommend that the salt be prepared by sodium hypochlorite oxidation of ferric nitrate. A somewhat tedious purification procedure is nece.ssary to obtain material of 92 96% purity in yields of 44-76%. 

Nickel peroxide, obtained by oxidation of nickel sulfate hydrate with an alkaline 6% solution of sodium hypochlorite, oxidizes alcohols either to aldehydes, when benzene is used as a solvent, or to acids, when the reaction is done in aqueous alkaline solution (equation 215) [932]. Allenic alcohols are converted into the aldehydes in ether at 20 °C in good yields [1137]. 

AMMONIUM OXALATE, ANHYDROUS (1113-38-8) CjHsNj04 (Fire Rating 1). Incompatible with acids, ammonium acetate furfliryl alcohol, silver, sodium chlorite, sodium hypochlorite oxidizers. Attacks many metals. Heat of decomposition or fire produces fumes of ammonia, nitrogen oxides, carbon monoxide, carbon dioxide, formic acid. Attacks steel. On small fires, use foam, dry powder, water, or CO2 extinguishers. 

Riithenium tetroxide sodium hypochlorite Oxidative ring opening s. 24, 251 suppl. 29... 

STERNCHEM Polyester Mortar is formulated to provide superior service for acid brick constructions in the chemical process, pulp and paper, plating, textile, fertilizer, and metal refining industries. They are especially suited for chlorine dioxide towers, bleaching vats, trenches, sumps, pits, bleaching solutions of sodium hypochlorite, oxidizing solutions of nitric and chromic acids to 20% concentrations, hydrobromic acid, potassium and sodium dichromates, bromine water, salt solutions to pH 11. 

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