2-(4-CHLOR-2-PHOSPHONBENZENEAZO)-1,8-DIHYDROXYNAPHTHALENE-3,6-DISULPHONIC ACID (CHLOROPHOSPHONAZO I)-AS A REAGENT FOR THE PHOTOMETRIC DETERMINATION OF URANIUM(VI)

Journal Article · Mon May 01 04:00:00 EDT 1961 · Zhur. Anal. Khim.

OSTI ID:4839089

Nemodruk, A A; Novikov, Yu P; Lukin, A M; Kalinina, I D

It is shown that 2-(4-chlor-2-phosphonbenzeneazo)- 1,8dihydroxynaphthalene-3,6-disulphonic acid (chlorophosphonazo I,) may be used for the photometric determination of uranium(VI) and has properties similar to those of 2(2-arsenohenzeneazo)-1,8-dihydroxynaphthalene-3,6disulphonic acid (arsenazo). The main difference is that the chlorphosphonazo-uranium(VI) compound is more stable than the arsenazo-uranium(VI) compound, which permits the determination of uranium in more acid solutions. When uranium(VI) is determined with chlorphosphonazo, the interference of masking substances is considerably lower. A photometric method is suggested for the determination of uranium(VI) by means of chlorphosphonazo I after its separation from interfering elements by the extraction process. (tr-auth)

• Research Organization: Vernadskii Inst. of Geochemistry and Analytical Chemistry, Academy of Sciences, Moscow; All-Union Scientific-Research Inst. of Chemical Reagents, Moscow
• NSA Number: NSA-15-027588
• OSTI ID: 4839089
• Journal Information: Zhur. Anal. Khim., Journal Name: Zhur. Anal. Khim. Vol. Vol: 16
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDS
ARSENAZO
CHEMISTRY
COLOR
DYES
IMPURITIES
PHOTOMETRY
QUANTITATIVE ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
STABILITY
URANIUM