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https://dspace.ffh.bg.ac.rs/handle/123456789/1640| Title: | Kinetics of isotope exchange between [3-(iodophenyl)methyl]guanidine (mIBG) and [<sup>131</sup>I]-iodide | Authors: | Tešić, M. Ratković, M. Dondur, Vera Jankov, R. |
Issue Date: | 1-Jan-1992 | Journal: | Journal of Radioanalytical and Nuclear Chemistry Articles | Abstract: | The reaction of isotope exchange between [3-(iodophenyl)methyl]guanidine, mIBG, and [131]-iodide in relatively concentrated solutions, in the presence of different ammonium salts, in a closed system, over the temperature range from 130 to 150°C, has been investigated. The reaction occurs either with (NH4)2SO4 or CH3COOH, which indicates that the reaction goes through some intermediate stages. Kinetic studies show the influence of the additives. The activation energies for the reaction with (NH4)2SO4/H2O, (NH4)2SO4/CH3COOH and CH3COOH are 121.1, 115.1 and 84.5 kJ·mol-1, respectively. © 1992 Akadémiai Kiadó. |
URI: | https://dspace.ffh.bg.ac.rs/handle/123456789/1640 | ISSN: | 0236-5731 | DOI: | 10.1007/BF02034784 |
| Appears in Collections: | Journal Article |
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