COLORIMETRIC DETERMINATION OF BORON IN NITRATE SOLUTIONS

Journal Article · Mon Feb 01 04:00:00 EST 1960 · Talanta (England)

DOI:https://doi.org/10.1016/0039-9140(60)80040-9· OSTI ID:4157465

Ross, W J; White, J C

A method for the determination of microgram amounts of boron in nitrate solutions is presented. Nitrate is destroyed with formic acid and sulfuric acid under reflux conditions. As much as 3 mM of nitrate were reduced completely by refluxing 1 ml of the nitrate solution with 1 ml of 88% formic acid for 15 minutes. Boron was determined by the carminic acid method after forming the colored complex in situ. This method was applied to the determination of boron in uranyl nitrate solutions after extraction of uranium with tri-n-octylphosphine oxide dissolved in cyclohexane. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• NSA Number: NSA-14-010476
• OSTI ID: 4157465
• Journal Information: Talanta (England), Journal Name: Talanta (England) Vol. Vol: 3; ISSN TLNTA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALKYL RADICALS
BORON
BORON COMPLEXES
CARMINIC ACID
CHEMICALS
CHEMISTRY
COLOR
CYCLOALKANES
DECOMPOSITION
DYES
FORMIC ACID
HEXANE
MEASURED VALUES
NITRATES
ORGANIC ACIDS
ORGANIC PHOSPHORUS COMPOUNDS
OXIDES
PHOSPHINES
PHOSPHORUS COMPOUNDS
QUANTITATIVE ANALYSIS
SOLUTIONS
SOLVENT EXTRACTION
SULFURIC ACID
TOPO
URANYL NITRATES