PHOTOMETRIC TITRATION OF BERYLLIUM

Journal Article · Wed May 01 04:00:00 EDT 1963 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60199a009· OSTI ID:4732929

Florence, T M; Farrar, Y J

A new method for the titrimetric determination of Be in diverse materials is described. The sample is treated with a known excess of sodium sulfosalicylate, then backtitrated with standard beryllium sulfate solution using a simple, commercially available photometric titrator. The reaction between Be and sulfosalicylate is stoichiometric (1 to 2), the end point being detected with arsenazo indicator at pH 10.6. The interference of raost elements is prevented by the addition of (1,2-cyclohexylenedinitrilo)tetracetic acid (CyDTA). Uranium may be masked with H/sub 2/O/sub 2/, and Cr can be tolerated if oxidized to the hexavalent state. The range of the titration is 0.05 to 15 mg of Be, with a relative standard deviation of 450 deg C in a 0.13% at the 3-mg Be level, and 0.37% at the 0.8-mg Be level. (auth)

• Research Organization: Australian Atomic Energy Commission Research Establishment, Lucas Heights, New South Wales
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-019953
• OSTI ID: 4732929
• 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: 35; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ARSENAZO
BERYLLIUM
BERYLLIUM SULFATES
CHELATES
CHEMISTRY
CHROMIUM
ERRORS
HYDROGEN PEROXIDES
INTERFERENCE
OXIDATION
PHOTOMETRY
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SALICYLIC ACID
SENSITIVITY
SODIUM COMPOUNDS
SPECTRA
STABILITY
URANIUM