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1989 (1)
1978 (1)
1Author    Horst-Dieter Försterling, Szilvia Murányi, Helmut SchreiberRequires cookie*
 Abstract    In the Belousov-Zhabotinsky system bromine species of oxidation states — 1 to 5 are important for the start and for the inhibition of the autocatalytic reaction steps. Especially, the reaction of Br~ with HBr02 competes with the oxidation of Ce3+ by BrOz formed from HBrO, and HBr03. In our investigation the reaction of Br with HBr02 (solvent 1 M sulfuric acid) is followed spectroscopi-cally in a mixture of bromine and hypobromous acid, which system works as a buffer for bromide. Including experiments on the hydrolysis of Br2 and on the solubility product of AgBr in 1 M sulfuric acid solution direct information about the rate constant kl of the Br~/HBrO, reaction is obtained (fc, = 2.5 x 106 M"2 s"1 at 20 C and 4x 106 M"2 s"1 at 25°C, which values are valid in the range of 0.01 to 1 M sulfuric acid). R a te o f th e B ro m o u s A c i d -B r o m i d e R e a c tio n 
  Reference    Z. Naturforsch. 44a, 555 (1989); received March 15 1989 
  Published    1989 
  Keywords    Belousov-Zhabotinsky reaction, Bromous acid Bromide, Bromine hydrolysis, Bromate, Dual wavelength spectroscopy 
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 TEI-XML for    default:Reihe_A/44/ZNA-1989-44a-0555.pdf 
 Identifier    ZNA-1989-44a-0555 
 Volume    44 
2Author    Herbert Böhme, Peter BögerRequires cookie*
 Title    Dual-Wavelength Spectroscopy in Photosynthesis  
  Reference    Z. Naturforsch. 33c, 161 (1978); received March 13 1978 
  Published    1978 
  Keywords    Photosynthetic Electron Transport, Plastidic Cytochromes, Dual-Wavelength Spectroscopy, Cross-Over Experiments; Oxidation-Reduction Potentiometry 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0161.pdf 
 Identifier    ZNC-1978-33c-0161 
 Volume    33