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Sulfur Metabolism in Phototrophic Sulfur Bacteria
2008Phototrophic sulfur bacteria are characterized by oxidizing various inorganic sulfur compounds for use as electron donors in carbon dioxide fixation during anoxygenic photosynthetic growth. These bacteria are divided into the purple sulfur bacteria (PSB) and the green sulfur bacteria (GSB). They utilize various combinations of sulfide, elemental sulfur,
Frigaard, Niels-Ulrik, Dahl, Christiane
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2021
Sulfur is unusual in that it is a mineral that may be taken into the body in both inorganic and organic combinations. It has been available within the environment throughout the development of lifeforms and as such has become integrated into virtually every aspect of biochemical function.
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Sulfur is unusual in that it is a mineral that may be taken into the body in both inorganic and organic combinations. It has been available within the environment throughout the development of lifeforms and as such has become integrated into virtually every aspect of biochemical function.
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Properties of Sulfur‐Sulfur Bonds
Angewandte Chemie International Edition in English, 1975AbstractSS bonds are extraordinarily flexible and have properties that are observed only on isolated occasions for other homonuclear bonds: the bond lengths very between 1.8 and 3.0Å, the bond angles between 90 and 180° and the dihedral angles between 0 and 180°; the bond energies amount to up to 430 kJ/mol.
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1992
Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/ gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock.4 A yellow solid at normal temperatures, sulfur becomes progressively lighter in color at lower temperatures and is ...
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Sulfur is one of the few elements that is found in its elemental form in nature. Typical sulfur deposits occur in sedimentary limestone/ gypsum formations, in limestone/anhydrite formations associated with salt domes, or in volcanic rock.4 A yellow solid at normal temperatures, sulfur becomes progressively lighter in color at lower temperatures and is ...
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Sulfuration of dienes with elemental sulfur
Tetrahedron Letters, 1997Abstract Elemental sulfur reacts with conjugated 1,3-dienes to deliver cyclic di- and polysulfides; the reaction proceeds without any activation other than heat. Treatment of cyclic polysulfide products with triphenylphosphine cleanly converts them to the corresponding disulfide in good overall yield.
Andrzej Z. Rys, David N. Harpp
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Journal of the American Academy of Dermatology, 1988
Sulfur is a time-honored therapeutic agent useful in a variety of dermatologic disorders. Its keratolytic action is due to formation of hydrogen sulfide through a reaction that depends upon direct interaction between sulfur particles and keratinocytes.
A N, Lin, R J, Reimer, D M, Carter
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Sulfur is a time-honored therapeutic agent useful in a variety of dermatologic disorders. Its keratolytic action is due to formation of hydrogen sulfide through a reaction that depends upon direct interaction between sulfur particles and keratinocytes.
A N, Lin, R J, Reimer, D M, Carter
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Derivatives of sulfuric and sulfurous acids
1971Sulfuric acid was used previously as a herbicide; at present it is used for the desiccation of potato plant tops for the purpose of mechanizing the harvesting. However, because treatment with sulfuric acid greatly increases the acidity of the soil and requires subsequent liming, its scale of use is rapidly declining.
Francis A. Gunther, Jane Davis Gunther
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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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Sulfuration with Sulfur, Sulfur Dichloride, or Sulfenyl Halides
2008M. Saito, J. Nakayama
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