Disodium peroxide

The use of disodium peroxide has been reported for the preparation of bis(trimethylsily 1) peroxide (BTSP) 5 in 80-85% yield (equation 6)". 

SYNS DISODIUM dioxide disodium peroxide FLOCOOL 180 SODIUM dioxide SODIUM OXIDE (Na202) SOLOZONE... 

Na202 DISODIUM PEROXIDE 1131 Nb02 NIOBIUM DIOXIDE 1174... 

Disodium peroxide. See Sodium peroxide Disodium peroxodisulfate Disodium peroxydisulfate. See Sodium persulfate Disodium phosphate. See Sodium phosphate dibasic anhydrous... 

Synonyms Disodium dioxide Disodium peroxide Sodium dioxide Sodium oxide... 

Peroxide-Ketazine Process. Elf Atochem in France operates a process patented by Produits Chimiques Ugine Kuhhnaim (PCUK). Hydrogen peroxide (qv), rather than chlorine or hypochlorite, is used to oxidize ammonia. The reaction is carried out in the presence of methyl ethyl ketone (MEK) at atmospheric pressure and 50°C. The ratio of H202 MEK NH2 used is 1 2 4. Hydrogen peroxide is activated by acetamide and disodium hydrogen phosphate (117). Eigure 6 is a simplified flow sheet of this process. The overall reaction results in the formation of methyl ethyl ketazine [5921-54-0] (39) and water ... 

A typical process for the preparation of a poly(methyl methacrylate) suspension polymer involves charging a mixture of 24.64 parts of methyl methacrylate and 0.25 parts of benzoyl peroxide to a rapidly stirred, 30°C solution of 0.42 parts of disodium phosphate, 0.02 parts of monosodium phosphate, and 0.74 parts of Cyanomer A-370 (polyacrylamide resin) in 73.93 parts of distilled water. The reaction mixture is heated under nitrogen to 75°C and is maintained at this temperature for three hours. After being cooled to room temperature, the polymer beads are isolated by filtration, washed, and dried (69). 

Nutrients are usuaUy added at concentrations ranging from 0.005 to 0.02% by weight (16). In a field appHcation using hydrogen peroxide, nutrients were added to the injected water at the foUowing concentrations 380 mg/L ammonium chloride 190 mg/L disodium phosphate, and 190 mg/L potassium phosphate, the latter used primarily to complex with iron in the formation to prevent decomposition of hydrogen peroxide (24). 

Several other processes have been developed. Most of these are based on oxidation of ammonia, using different oxidizing agents. In one such process, ammonia is oxidized with hydrogen peroxide in the presence of methyl ethyl ketone, acetamide and disodium hydrogen phosphate at 50°C ... 

THF tetrahydrofuran, NaNap sodium naphthalenide, Na2St disodium stilbene dianion, BP benzoyl peroxide, DME 1,2-dimethoxyethane, TMBD tetramethylbenzidine dication diperchlorate, WBP Wurster s blue perchlorate, LP lauroyl peroxide, FLSPEC fluorescence spectrum obtained, FPSPEC fluorescence and phosphorescence spectrum obtained, FXSPEC fluorescence and eximer spectra obtained, DPAC12 9,10-dichlorO 9,10-dihydro-9,10-diphenylanthracene. 

The methods commonly used for preparation of disodium dihydrogen hypophosphate depend upon the oxidation of yellow or red phosphorus. Yellow phosphorus may be oxidized by air1 or by copper(II) nitrate.2,3 Red phosphorus may be oxidized by chlorite,4 hypochlorite,5,6 alkaline permanganate,7 hydrogen peroxide,7 or iodine.8 The phosphorus (III) halides, upon hydrolysis and treatment with iodine, yield some hypophosphate.9-11 Electrolytic oxidation of a phosphide of copper, nickel, or silver3 has also been used. 

The ditellurium compounds, in which a Te —Te group joins two carbonyl groups, can be considered to be the tellurium analogs of peroxy compounds derived from carbonic acid or benzoic acids (e.g. benzoyl peroxides). Only a few of these compounds are known. During the reduction of aromatic nitro compounds with disodium telluride in dimethylfor-mamide, bis[dimethylaminocarbonyl] ditellurium was formed as a by-product in yields from 5 to 15%. The formation of this compound was attributed to the capture of the dimethylaminocarbonyl radical by the telluride anion and subsequent oxidation of the tellurocarbamoyl species4. 

Disodium periodate, Na2HgI06, can be prepared by the action of chlorine on a mixture of sodium iodate and hydroxide,16 or by the oxidation of iodine with sodium peroxide.17 It is soluble with difficulty in both cold and hot water. The table gives determinations of solubility made by Rosenheim and Loewenthal 18... 

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