METAL CHELATES OF 4-HYDROXYBENZOTHIAZOLE AND ITS DERIVATIVES (thesis)

Technical Report · Sun Jan 01 04:00:00 EST 1961

OSTI ID:4066509

Feng, P

4-Hydroxybenzothiazole was synthesized by Erlenmeyer's method with several modifications. A number of its derivatives were prepared. The acid- dissociation constants of 4-hydroxybenzothiazole and its derivatives were determined potentiometrically and spectrophotometrically, and the results were interpreted. The chelate-formation constants of the reagents with divalent metal ions were determined by the Calvin-Bjerrnm potentiometric technique, and the results were discussed. The acid-dissociation constants as well as the chelate- formation constants were compared with the corresponding values of analogous compounds, primarily 8-quinolinol. This has provided useful information on some of the factors that influence the stability of metal chelates. Reactions between 4-hydroxybenzothiazole and its derivatives and metal ions were investigated. The lanthanon complexes with 4-hydroxybenzothiazole were prepared and characterized. An amperometric titration was worked out for the determination of 4hydroxybenzothiazole as well as its metal chelates. (auth)

• Research Organization: Pittsburgh. Univ.
• NSA Number: NSA-15-022279
• OSTI ID: 4066509
• Report Number(s): TID-12985
• Country of Publication: United States
• Language: English

Related Subjects

CHELATES
CHEMICAL REACTIONS
CHEMISTRY
ELECTRIC POTENTIAL
LANTHANUM COMPLEXES
METALS
ORGANIC COMPOUNDS
PHOTOMETRY
POTENTIOMETRY
PREPARATION
QUALITATIVE ANALYSIS
SPECTRA
STABILITY
SULFUR COMPOUNDS
TITRATION