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The thoron-tartaric acid systems for the spectrophotometric determination of thorium

Trace Elements Investigations 571

By:
and

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Abstract

Thoron is popularly used for the spectrophotometric determination of thorium.  An undesirable feature of its use is the high sensitivity of the reagent toward zirconium. This study describes the use of tartaric acid as a masking reagent for zirconium. Three tartaric acid-thoron systems, developed for the determination of thorium, differ with respect to the concentrations of thoron and tartaric acid. Mesotataric acid, used in one of the systems, is found to be most effective in masking zirconium. The behavior of various rarer elements, usually found associated with thorium ores, is determined in two of the systems, and a dilution method is described for the direct determination of thorium in monazite concentrates.

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
The thoron-tartaric acid systems for the spectrophotometric determination of thorium
Series title:
Trace Elements Investigations
Series number:
571
Year Published:
1955
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Washington D.C.
Description:
25 p.
Online Only (Y/N):
N
Additional Online Files (Y/N):
N