APPLICATION OF PYROCATECHOL VIOLET AS A COLORIMETRIC REAGENT FOR TIN

Journal Article · Tue Feb 28 23:00:00 EST 1961 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60171a034· OSTI ID:4088973

Ross, W J; White, J C

Pyrocatechol Violet was applied as a sensitive reagent for the colorimetric determination of tin. This reagent formed a red-colored complex with quadrivalent tin at pH 2.5. The molar absorptivity was 65,000 at its maximum absorbance of 555 m mu ., Bivalent tin did not form a complex with Pyrocatechol Violet. Intenference was produced by those metal ions that form colored species with the reagent in solution where the pH is less than 5; these include zirconium, titanium, bismuth, antimony, gallium, and molybdenum. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-010861
• OSTI ID: 4088973
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 33; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ANTIMONY
BISMUTH
CHEMISTRY
COLOR
COMPLEXES
DYES
GALLIUM
INTERFERING ELEMENTS
MEASURED VALUES
MOLYBDENUM
ORGANIC COMPOUNDS
PYROCATECHOL VIOLET
QUANTITATIVE ANALYSIS
TIN
TITANIUM
ZIRCONIUM