COMPOSITION AND STABILITY OF LANTHANUM(III)-p-NITROBENZENEAZOCHROMOTROPIC ACID (CHROMOTROPE 2B) CHELATE IN SOLUTION

Journal Article · Mon Apr 01 04:00:00 EST 1963 · Journal of the Indian Chemical Society (India) Absorbed Indian J. Appl. Chem.

OSTI ID:4713009

Sengal, S P; Srivastava, S C; Dey, A K

A detailed study of the composition and stability of lanthanum(III)-p- nitrobenzeneazochromotropic acid (chromotrope 2B) chelate was made spectrophotometrically. The chelate is reddish violet in color ( lambda /sub max/ at 540 m mu ). The composition, as determined by different methods, is 1: 1 (metal: chelating agent). The chelate is stable between pH 5.0 and 12.5. The values of log K, as determined by two different methods, are 4.6 plus or minus 0.1 and 4.9 plus or minus 6.18 respectively at 25 deg and at pH 6.0. (auth)

• Research Organization: Univ. of Allahabad, India
• NSA Number: NSA-17-028785
• OSTI ID: 4713009
• Journal Information: Journal of the Indian Chemical Society (India) Absorbed Indian J. Appl. Chem., Journal Name: Journal of the Indian Chemical Society (India) Absorbed Indian J. Appl. Chem. Vol. Vol: 40; ISSN JICSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
CHELATES
CHEMISTRY
COLOR
LANTHANUM COMPLEXES
ORGANIC NITROGEN COMPOUNDS
PHENYL RADICALS
PHOTOMETRY
SOLUTIONS
SPECTROSCOPY
STABILITY