1954 年 74 巻 10 号 p. 1014-1017
Treatment of silver salts with ammonia is the usual method in isolating the iodine and chlorine ions but such a method necessitates decomposition of each silver salt separately after treatment with ammonia, which is somewhat tedious in analytical procedures. A method of isolation using the difference in the solubility of the cuprous salt of each ion was examined and it was thereby found that a sufficiently satisfactory results are obtained except when the concentration of the chloride is extremely small. If this isolation method can be carried out quantitatively, qualitative estimation of each ion, in the presence of both halogen ions, can be made more simply than by the silver salt method. Moreover, such method of isolation can possibly be utilized for the quantiative determination of each ion in the presence of the two halogen ions or of each element in organic compounds possessing both iodine and chlorine in their molecule.