Extraction-chromatographic separation of beryllium with bis(2-ethylhexyl)phosphoric acid

Abstract

Beryllium was extracted from 0.01 M hydrochloric acid on a silica gel column impregnated with bis(2-ethylhexyl)phosphoric acid. The beryllium was stripped with 1 M hydrochloric acid and was determined spectrophotometrically at 525 nm as its complex with Eriochrome Cyanine R. Beryllium was separated from the alkali and alkaline earth metals, manganese, iron(III), cobalt, nickel, copper, zinc, aluminium, thallium(III), gallium, molybdenum and germanium in binary mixtures and from copper, zinc, iron(III), aluminium, lead, barium and calcium in multi-component mixtures. The method was extended to the determination of beryllium in beryl.