PHOTOMETRIC DETERMINATION OF THE SUM OF RARE EARTHS IN ORES AND ROCKS

Journal Article · Wed Dec 31 23:00:00 EST 1958 · Zhur. Anal. Khim.

OSTI ID:4279767

Zailovskii, F V; Bashmakova, 'V S

BS>It was found that Beer's law is obeyed by the solutions of cerium and yttrium rare earth complexes with arsenazo. The interference of calcium and other elements during photometoring is eliminated with sulfosalycylic and tartaric acids. A method is suggested for separating small amounts of thorium from the sum of rare earths. A photometric method was developed for determining 0.01 to 3% of the sum of rare earths in ores and rocks with the experimental error of 20%. It is possible to carry out 8 to 10 analyses in the course of 8 to 10 hours. (auth)

• Research Organization: All-Union Inst. of Mineral Raw Materials, Moscow
• NSA Number: NSA-13-010936
• OSTI ID: 4279767
• Journal Information: Zhur. Anal. Khim., Journal Name: Zhur. Anal. Khim. Vol. Vol: 14
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ABSORPTION
ARSENAZO
ARSENIC COMPOUNDS
BEER LAW
CALCIUM COMPOUNDS
CERIUM COMPOUNDS
CHEMICALS
CHEMISTRY
COLORIMETRY
COMPLEXES
ERRORS
HYDROXIDES
INTERFERING ELEMENTS
NAPHTHALENE
ORES
ORGANIC ACIDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENYL RADICALS
PHOTOMETRY
QUANTITATIVE ANALYSIS
RARE EARTHS
ROCKS
SALICYLIC ACID
SEPARATION PROCESSES
SOLUTIONS
THORIUM COMPOUNDS
TRACE AMOUNTS
YTTRIUM COMPOUNDS