Hydrogen peroxide water

In these methods, the sulfur oxides produced during combustion are, before detection, either converted into sulfuric acid by bubbling in a hydrogen peroxide-water solution or converted into sulfates. 

Alcohol autoxidation is carried out in the range of 70—160°C and 1000—2000 kPa (10—20 atm). These conditions maintain the product and reactants as Hquids and are near optimum for practical hydrogen peroxide production rates. Several additives including acids, nitriles, stabHizers, and sequestered transition-metal oxides reportedly improve process economics. The product mixture, containing hydrogen peroxide, water, acetone, and residual isopropyl alcohol, is separated in a wiped film evaporator. The organics and water are taken overhead and further refined to recover by-product acetone and the... 

A mixture of formic acid and acetic acid detonates in the presence of a hydrogen peroxide/water mixture, if the peroxide concentration is greater than 50%. 

Zhang, G. and Nicell, J.A., Treatment of aqueous pentachlorophenol by horseradish peroxidase and hydrogen peroxide, Water Res., 34, 1629-1637, 2000. 

Detonation limit diagrams for hydrogen peroxide, water, acetone systms are given [11],... 

The explosion limits have been determined for liquid systems containing hydrogen peroxide, water and acetaldehyde, acetic acid, acetone, ethanol, formaldehyde, formic acid, methanol, 2-propanol or propionaldehyde, under various types of initiation [1], In general, explosive behaviour is noted where the ratio of hydrogen peroxide to water is >1, and if the overall fuel-peroxide composition is stoicheiometric, the explosive power and sensitivity may be equivalent to those of glyceryl nitrate [2],... 

Hwang, H. and Dasgupta, P.K. Thermodynamics of the hydrogen peroxide-water system. Environ. Sci Technol, 19(3) 255-258,1985. 

Ince NFI, Apikyan IG (2000) Combination of activated carbon adsorption with light-enhanced chemical oxidation via hydrogen peroxide. Water Res 34 4169 176... 

Gulyas, H. von Bismarck, R. Hemmerling, L. Treatment of industrial wastewaters with ozone/ hydrogen peroxide. Water Sci. Technol. 1995, 32 (7), 127-134. 

An explosive insensitive to mech and rifle bullet impact, but detonable by a blasting cap, is claimed in a US patent. It consists of Hydrogen Peroxide, water glycerol (Ref 3) Another patented high explosive composition contains powdered metal and Hydrogen Peroxide, eg 29.7% powd B 70.3% H202 (Ref 19)... 

Thermal analysis of the system hydrogen peroxide-water is given on Fig. 82.)... 

Figure 3. Normalized chemical shift data (5/dp) for ions in hydrogen peroxide-water mixtures...

Table I. NMR Solvation Parameters for Hydrogen Peroxide—Water Mixtures (2)...

Masschelein W, Denis M, Ledent R (1977) Spectrophotometric Determination of Residual Hydrogen Peroxide, Water and Sewage Works 8 69-72. 

Beltran, F.J., Ovejero, G., and Acedo, B., Oxidation of atrazine in water by ultraviolet radiation combined with hydrogen peroxide, Water Res., 27(6), 1013-1021,1993. 

Mokrini, A., Ousse, D., and Espuglas, S., Oxidation of aromatic compounds with UV radiation/ozone/hydrogen peroxide, Water Sci. Technol., 35, 95-102, 1997. 

The oxidation of 3-substituted tetramethylthietanes with MCPBA gives the cfs-sulfoxide with modest stereoselectivity (8 3 is the best of 4 examples) (94TL5809), and Ti(III) in a mixture of hydrogen peroxide, water and methanol is more selective (94MI281). 

Wang GS, Hsieh ST, Hong CS. Destruction of humic acid in water by UV light catalyzed oxidation with hydrogen peroxide. Water Res 2000 34 3882-3887. 

Fung PC, Huang Q, Tsui SM, Poon CS. Treatability study of organic and colour removal in desizing/dyeing wastewater by UV/US system combined with hydrogen peroxide. Water Sci Technol 1999 40 153-160. 

Pignatello JJ, Huang FQ. Degradation of polychlorinated dibenzo-/>-dioxin and dibenzofuran contaminants in 2,4,5-T by photoassisted iron-catalyzed hydrogen peroxide. Water Res 1993 27 1731-1736. 

Wagner M, Nicell JA. Treatment of a foul condensate from Kraft pulping with horseradish peroxidase and hydrogen peroxide. Water Res 2001 35(2) 485-495. 

Figure 1.15 Boiling point range of hydrogen peroxide-water mixtures.

Radiolysis has also been employed to generate the hydroxyl radical. However, because very energetic particles are used (x-rays, 7-rays, electron beams, etc.) aqueous solutions are used instead of hydrogen peroxide. Water molecules can be cleaved homolytically and heterolytically to produce three radical species hydroxyl radical, hydrated electron and hydrogen atom.30 A great many rate constants of hydroxyl radical with reductants, especially alcohols, have been measured using radiolysis combined with EPR or electronic spectroscopy.31... 

FIGURE 21.28 Potential-pH equilibrium diagram of the hydrogen peroxide-water system at 25 °C (from Ref. 40). 

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