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Subject Keyword CHEMISTRY ♦ CHEMICAL REACTIONS ♦ CHLORIDES ♦ CHLORINE ♦ COBALT 60 ♦ CORROSION PROTECTION ♦ DYES ♦ GAMMA RADIATION ♦ HYDROCHLORIC ACID ♦ INDIGO CARMINE ♦ INHIBITION ♦ IONS ♦ IRRADIATION ♦ OXIDATION ♦ QUANTITY RATIO ♦ RADIOCHEMISTRY ♦ SODIUM CHLORIDES ♦ SOLUTIONS ♦ SULFURIC ACID ♦ WATER ♦ X RADIATION
Abstract Previous works on the radiochemical oxidation of indigo carmine in aqueous solution have shown that the oxidation is caused by the superposition of two reactions; one, the principal reaction, ends with the irradiation and the other, very slow, lasts for several days after the irradiation has ceased. This extended effect concerns. in 0.8N sulfuric medium, approximately 40% of the total transformation. It is shown that Cl- from NaCl and HCl has an inhibitory effect on the two phenomena. The extended effect is completely inhibited by the addition, either before or after the irradiation. of this ion in sufficient concentration. (J.S.R.)
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-09-01
Journal Journal de Chimie Physique
Volume Number 57
Organization Instituto de Alta Cultura, Comissao de Estudos da Energia Nuclear, Lisbon


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