Co(III)-5-Cl-PADAP
Metal Indicator
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Product codeC021 Co(III)-5-Cl-PADAP
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CAS No.81342-98-5
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Chemical nameBis[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III) chloride
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MWC30H32Cl3CoN8O2=701.92
Unit size | -- | -- |
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Product Description
Since Co(III)-5-Cl-PADAP is not influenced by chloride or nitrate ions, it is suitable for the colorimetric determination of anionic detergents in seawater. Anionic surfactant can be determined at the ppb level.
Chemical Structure
References
1) S. Taguchi and K. Goto, "Silaned Glass Beads for the Preconcentration and Spectrophotometric Determination of Cobalt with 2-(2-Pyridylazo)-5-diethylaminophenol", Talanta, 1980, 27, 819.
2) S. Taguchi and K. Goto, "Bis[2-(2-Pyridylazo)-5-Diethylaminophenolato]Cobalt(III) Chloride as a New Extraction and Spectrophotometric Reagent for Trace Anions", Talanta, 1980, 27, 289.
3) S. Taguchi, I. Kasahara and Y. Fukushima, "An Application of Bis[2-(5-Chloro-2-Pyridylazo)-5-Diethylaminophenolato]Cobalt(III) Chloride to the Extraction and Spectrophotometric Determination of Sulphonated and Sulphate Surfactants", Talanta, 1981, 28, 616.
4) K. Seno, H. Miyata and K. Toei, "Extraction-spectrophotometric Determination of Higher Carboxylic Acids with Bis[2-(5-Chloro-2-Pyridylazo)-5-Diethylaminophenol]Cobalt(III) Chloride", Chem. Lett., 1982, 645.
5) M. Taga and M. Kan, "Flotation-spectrophotometric Determination of Phosphate with Bis[2-(5-Chloro-2-Pyridylazo)-5-Diethylaminophenolato]Cobalt(III) Chloride",Anal. Sci., 1988, 4, 181.
6) M. Taga, M. Kan, F. Komatsu, S. Tanaka and H. Yoshida, "Capillary Isotachophoretic Determination of Phosphate After Enrichment on Membrane Filter as Ion Pair Molybdophosphate with Bis[2-(5-Chloro-2-Pyridylazo)-5-Diethylaminophenolato]Cobalt(III)", Anal. Sci., 1989, 5, 219.
7) M. Taga and M. Kan, "The Spectrphotometric Determination of Phosphate Following the Collection of Ion Pair of Molybdophosphate with Bis-[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III) on an Organic Solvent-soluble Membrane Filter" , Bull. Chem. Soc. Jpn., 1989, 62, 1482.
Handling and storage condition
Appearance: | Blackish purple crystal |
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Solubility in 10% methyl alcohol: | To pass test (clear, deep reddish purple) |
Molar absorptivity: | ≧84,000 (around 585 nm) |
IR spectrum: | Authentic |
Ambient temperature | |
Danger / harmful symbol mark |
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