Results 201 to 210 of about 93,010 (262)
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Oxidative Decomposition of Nitrogen-Sulfur Oxides
Industrial & Engineering Chemistry Research, 1994The oxidative decomposition of nitrogen-sulfur oxides, formed by the reaction of nitrite ion and hydrogen sulfite ion in aqueous solution, has been investigated. The oxidants used in this study included hydrogen peroxide, nitrogen dioxide, and ozone. There was a wide range of susceptibility to oxidation among the compounds studied.
David Littlejohn, Shih Ger Chang
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1996
The kinetics of the decomposition of aqueous peroxonitric acid, O2 NOOH, have been studied as a function of pH in the range pH = 0-9. In addition to literature studies on the stability of peroxonitric acid solutions two more reactions have been measured. They are assigned to the formation and the decay of a short-lived intermediate.
P. Amels +4 more
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The kinetics of the decomposition of aqueous peroxonitric acid, O2 NOOH, have been studied as a function of pH in the range pH = 0-9. In addition to literature studies on the stability of peroxonitric acid solutions two more reactions have been measured. They are assigned to the formation and the decay of a short-lived intermediate.
P. Amels +4 more
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Sulfur oxidation by phototrophic bacteria
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1989II. Patterns of sulfur oxidation by phototrophic bacteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 A. Chlorobiaceae . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 B. Chromat iaceae . .-, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Photolithotrophic Sulfur Oxidation
1981The utilization of sulfur Compounds (at oxidation levels below that of sulfate) as electron donors in anoxygenic photosynthesis is — though to a different extent — common to most groups of phototrophic prokaryotes (cf. Tables 1 and 2). Classical in this respect are the purple and green sulfur bacteria (Chromatiaceae and Chlorobiaceae) all of which ...
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Oxidation of sulfur hexafluoride
Journal of Inorganic and Nuclear Chemistry, 1969Abstract Although SF 6 is extraordinarily inert toward oxygen, reaction can be initiated by the electrical explosion of extremely small masses of platinum into SF 6 O 2 mixtures. It is shown that chemically trivial amounts of exploding metal can be effective initiators of the SF 6 oxidation.
Bernard Siegel, Peter Breisacher
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Health Effects of Sulfur Oxides: Sulfur Dioxide and Sulfuric Acid
2000Sulfur dioxide (SO2) is a water soluble gas commonly emitted into ambient air by coal fired power plants, refineries, smelters, paper and pulp mills, and food processing plants. As you recall from Chapter 4, SO2is part of sulfurous air pollution that has plagued human populations for centuries.
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2000
Sulfur oxides comprise both gaseous and particulate chemical species. There are four of the former, namely sulfur monoxide, sulfur dioxide, sulfur trioxide and disulfur monoxide. The particulate phase sulfur oxides consist of strongly-to-weakly acidic sulfates, namely sulfuric acid (H2SO4) and its products of neutralization with ammonia: letovicite ...
Richard B. Schlesinger +2 more
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Sulfur oxides comprise both gaseous and particulate chemical species. There are four of the former, namely sulfur monoxide, sulfur dioxide, sulfur trioxide and disulfur monoxide. The particulate phase sulfur oxides consist of strongly-to-weakly acidic sulfates, namely sulfuric acid (H2SO4) and its products of neutralization with ammonia: letovicite ...
Richard B. Schlesinger +2 more
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2015
AbstractThe asymmetric biocatalytic oxidation of sulfides can be performed with high enantioselectivity by a number of different enzymes, allowing access to biologically active compounds including flavors and pharmaceuticals, and also chiral auxiliaries for organic synthesis.
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AbstractThe asymmetric biocatalytic oxidation of sulfides can be performed with high enantioselectivity by a number of different enzymes, allowing access to biologically active compounds including flavors and pharmaceuticals, and also chiral auxiliaries for organic synthesis.
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Desulfurication and Sulfur Oxidation
1977Brackish water areas such as estuaries and fjords often create favorable conditions for the activity of sulfate-reducing bacteria in the marine environment.
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