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'Elemental Sulfur' in keywords Facet   section ZfN Section B  [X]
Facet   Publication Year 1987  [X]
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1Author    Eva-Maria Strauss, Ralf SteudelRequires cookie*
 Title    Photolyse von elementarem Schwefel (S 6 , S 7 , S 8 , S 10 , S 12 ) in Kohlenstoffdisulfidlösung [1]  
 Abstract    The photochemical decomposition of pure carbondisulfide as well as of solutions of pure S 6 , S 7 , S 8 , S I0 and S 12 , respectively, in CS 2 at 15 °C on irradiation by a high-pressure mercury lamp (200-600 nm) has been studied by quantitative HPLC analysis of the soluble products. In all cases mixtures of sulfur homocycles S" (n = 5,6, ...) are formed with S 8 , S 7 and S 6 being the dominating species, but traces of S 5 , S 9 , S 10 and S 12 have also been observed in most cases. S 5 has been identified for the first time; it is formed in particular in the photolysis of S 7 in CS 2 . All irradiated sulfur solutions reach more or less the same photostationary equilibrium, but the decomposition of CS 2 increases linearly with time and its effects are superimposed on the S" interconversion reactions. 
  Reference    Z. Naturforsch. 42b, 682—690 (1987); eingegangen am 20. Februar 1987 
  Published    1987 
  Keywords    Elemental Sulfur, Photolysis, HPLC, Carbondisulfide, Sulfur Homocycles 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0682.pdf 
 Identifier    ZNB-1987-42b-0682 
 Volume    42 
2Author    Ralf Steudel, Birger HolzRequires cookie*
 Title    S-Isotopenaustausch zwischen flüssigem Kohlenstoffdisulfid und elementarem Schwefel [1] Sulfur-34 Isotopic Exchange between Liquid Carbondisulfide and Elemental Sulfur [1]  
 Abstract    The exchange of sulfur isotopes between liquid carbondisulfide and dissolved elemental sulfur-34 (S 6 , S 7 , S 8 , S 9 , S 10 , S 12) was studied by Raman spectroscopy. No exchange was observed within 4 h at temperatures below 200 °C. Prolonged heating to 200 °C results in a slow exchange (half-life >300 h) as observed by the intensity increase of the symmetric stretching vibration of C 32 S 34 S measured at -120 °C. 
  Reference    Z. Naturforsch. 42b, 691—694 (1987); eingegangen am 26. Januar 1987 
  Published    1987 
  Keywords    Isotopic Exchange, Sulfur-34, Carbondisulfide, Elemental Sulfur 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0691.pdf 
 Identifier    ZNB-1987-42b-0691 
 Volume    42