Spectrophotometric Determination of Compex Formation of Cerium（Ⅲ） with 1-phenyl-2,3-dimethylpyrazolone-5-azo-4-pyrogallole in the Presence of Cetylpyridine Chloride
Complex formation of cerium （Ⅲ） with l-phenyl-2,3-dimethylpyrazolone-5-azo-4-pyrogallole （L） in the presence and absence ofcetylpyridine chloride （CPC） was investigated. Homogeneous CeL- and mixed ligand CeL-CPC compounds are formed at pH 6. Constants of stability of the complexes are （IgKD 5.15±0.0...
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| Veröffentlicht in: | Journal of chemistry and chemical engineering 2010, Vol.4 (10), p.62-64 |
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| Format: | Artikel |
| Sprache: | chi |
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| Zusammenfassung: | Complex formation of cerium （Ⅲ） with l-phenyl-2,3-dimethylpyrazolone-5-azo-4-pyrogallole （L） in the presence and absence ofcetylpyridine chloride （CPC） was investigated. Homogeneous CeL- and mixed ligand CeL-CPC compounds are formed at pH 6. Constants of stability of the complexes are （IgKD 5.15±0.02 （CeL）, 7.98±0.03 （CeL-CPC）. Ratio of reagents in composition of homogeneous is （1 ：2） and in different ligand it equals to （1：2：2）. Beer＇s law is observed in interval of concentration 1.12-11.2 μg/ml Ce. The technique for photometric determination of cerium was worked out in artificial mixture. |
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| ISSN: | 1934-7375 1934-7383 |