1-(2’Chloro-4′-Sulphophenyl-3-Methyl-4-azo-(2″-Carboxy-5″-Sulphonic acid)-5-Pyrazolone [CSMACSP] as a Spectrophotometric Reagent: Studies on Cu(II) Chelate
1Faculty of Engineering Technology and Research Bardoli - 394 620 (India).
2Shree Jayendrapuri Arts and Science College, Bharuch - 392 002 (India).
3Institute of Medical Technology, Span Educational and Research Foundation, Udhana, Surat - 394 210 (India).
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Numerous heterocyclic azo dyes have been reported for the spectrophotometric determination of Cu(II). Here, we report a new heterocyclic azo dye 1-(2'Chloro-4'-sulphophenyl-3-methyl-4-azo-(2"-carboxy-5"-sulphonic acid)-5-pyrazolone [CSMACSP] for the spectrophotometric determination of Cu(II). The method is simple, rapid and sensitive. Light green colour 1:1 (M:L) complex formed between Cu(II) and CSMACSP in the pH rage 2.0 - 5.0. The absorption spectrum shows as shoulder at 490 nm. The molar absorptivity a
KEYWORDS:Heterocyclic azo dyes; spectrophotometric determination
