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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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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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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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Sulfuration with Sulfur, Sulfur Dichloride, or Sulfenyl Halides
2008M. Saito, J. Nakayama
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Understanding Sulfur Redox Mechanisms in Different Electrolytes for Room-Temperature Na–S Batteries
Nano-Micro Letters, 2021Hua Kun Liu, Hanwen Liu, Nana Wang
exaly