SPECTROPHOTOMETRIC DETERMINATION OF URANIUM WITH BENZOHYDROXAMIC ACID IN 1- HEXANOL

Journal Article · Wed Jun 01 00:00:00 EDT 1960 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60163a017· OSTI ID:4166595

Meloan, C E; Holkeboer, P; Brandt, W W

A spectrophotometric method for quantitatively determining small amounts of uranium is based on extraction with 1-hexanol of the colored product formed when the uranyl ion reacts with benzohydroxamic acid (C/sub 6/H/sub 5/CONHOH) at pH 6.2. The system obeys Beer's law between 7 x 10/sup -7/ and 2 x 10/sup -5/ mole of uranyl ion when extracted into 10 ml. of 1-hexanol. The effects of reagent-metal ratio, pH, diverse ions, extraction interferences, and reagent stabilities bave been investigated. The stoichiometry of the colored species wae determined to be 1 to 1 (uraniumbenzohydroxamic acid) at pH 3.5 and 1 to 2 at pH values more basic than 5.5. The interference caused by thorium(N) and cerium(III) is eliminated. (auth)

• Research Organization: Purdue Univ., Lafayette, Ind.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-015605
• OSTI ID: 4166595
• 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: 32; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ALCOHOLS
BENZOHYDROXAMIC ACID
CHEMISTRY
HEXANE
IONS
ORGANIC ACIDS
PHOTOMETRY
QUANTITATIVE ANALYSIS
SOLVENT EXTRACTION
SPECTRA
URANIUM
URANYL COMPOUNDS