caa a22 4500 469110775 CHVBK 20180323133110.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF02039785 doi (NATIONALLICENCE)springer-10.1007/BF02039785 The radiation-induced degradation of a diazo dye in aqueous solution, II [Elektronische Daten] [N. El-Assy, F. Abdel-Rehim, A. Abdel-Gawad, A. Abdel-Fattah] The effect of γ-radiation on the color intensity of aerated, deaerated and oxygenated aqueous solutions of a diazo dye (Helion Red 8B) has been investigated. The decoloration yields of Helion Red 8B neutral aqueous solution, G(-Dye), for the nitrogen-, oxygen- and aerated-saturated solutions were found to be 0.77, 0.46 and 0.36 in the respective early stage. The rate constant for the reaction of the OH radical with the HR8B dye, obtained from competition kinetics using ethanol, was found to be 1.3·1010 M−1·s−1. In aerated solutions (pH 3), the G(-Dye) decreased markedly upon the addition of a very small amount of ethanol. Suggestions are made for possible use of the dye as a radiation dosimeter in the dose range of 0.1 to 2 kGy. Akadémiai Kiadó, 1992 El-Assy N. Faculty of Education of El-Arish, Suez Canal University, El-Arish, (Egypt) aut Abdel-Rehim F. Atomic Energy Authority, Cairo, (Egypt) aut Abdel-Gawad A. Atomic Energy Authority, Cairo, (Egypt) aut Abdel-Fattah A. Atomic Energy Authority, Cairo, (Egypt) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 157/1(1992-02-01), 133-141 0236-5731 157:1<133 1992 157 10967 https://doi.org/10.1007/BF02039785 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039785 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- El-Assy N. Faculty of Education of El-Arish, Suez Canal University, El-Arish, (Egypt) aut NATIONALLICENCE 700 1- Abdel-Rehim F. Atomic Energy Authority, Cairo, (Egypt) aut NATIONALLICENCE 700 1- Abdel-Gawad A. Atomic Energy Authority, Cairo, (Egypt) aut NATIONALLICENCE 700 1- Abdel-Fattah A. Atomic Energy Authority, Cairo, (Egypt) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 157/1(1992-02-01), 133-141 0236-5731 157:1<133 1992 157 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer