Isolation of titanium (IV), zirconium (IV), niobium (V), tantalum (V), tin (IV) and thorium (IV) by precipitation with phytin

Abstract

It has been found that phytin reacts with titanium (IV), zirconium (IV), niobium (V), tantalum (V), tin (IV), and thorium (IV) to give white precipitates from boiling acidic solutions. The reaction is more complete in a perchloric acid solution than in a hydrochloric or sulfuric acid solution, and is 100 per cent or nearly 100 per cent quantitative in the presence of ferrous ion. The amount of coprecipitated iron is small.
This reaction can possibly be applied to the isolation of above mentioned elements in the analysis of iron and steel.