Spectrophotometric Studies and Analytical Applications of Vanadium(IV) Chelates with 4-(2-Pyridylazo)resorcinol and 1-(2-Pyridylazo)-2-naphthol

Autor:	Om Prakash, S. P. Mushran, J. R. Verma
Rok vydání:	1972
Předmět:	chemistry.chemical_compound Mole ratio chemistry Stability constants of complexes Inorganic chemistry Vanadium chemistry.chemical_element Chelation General Chemistry Resorcinol 1-(2-pyridylazo)-2-naphthol Ph stability
Zdroj:	Bulletin of the Chemical Society of Japan. 45:1709-1711
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.45.1709
Popis:	Oxovanadium(IV), VO2+, gives sensitive colour reactions with 4-(2-pyridylazo)resorcinol (e=2.54×104 at λmax 550 nm) and 1-(2-pyridylazo)-2-naphthol (e=1.02×104 at λmax 560 nm). The composition of the complexes VO2+: PAN or PAR was established by the continuous variations, mole ratio, and Asmus straight line methods. Lambert-Beer’s law range, Ringbom optimum range, pH stability range, photometric error, and stability constant values were also evaluated.
Databáze:	OpenAIRE
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