Solvent extraction separation of zirconium from malonate solution with high molecular-weight amines.
Zirconium is quantitatively extracted with 4% Amberlite LA-1 or LA-2 in xylene, from 0.01 M malonic acid medium at pH 3.0 and stripped from the organic phase with 2M hydrochloric acid, then determined spectrophotometrically at 665 nm as its complex with Arsenazo III. Zirconium is separated from various other elements by selective extraction and stripping. The method has been applied to the analysis of zircon.
Sawant
M A
MA
Department of Chemistry, Indian Institute of Technology, Bombay-400 076, India.
Khopkar
S M
SM