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Amperometric Titration Method for Thorium in Presence of Rare Earths of Monazite Sand

Journal Article · · Analytical Chemistry
DOI:https://doi.org/10.1021/ac60073a046· OSTI ID:4401014

A suitable method for the volumetric determination of thorium in the presence of Interfering substances has not been available. An amperometric method is described which utilizes ammonium molybdate as titrant. The procedure permits the determination of 10 to 30 milligrams of thorium oxide in the presence of up to 800 milligrams of rare earth oxides in a volume of 50 milliliters. Thorium and the rare earths must be present as chloride. Perchlorate, nitrate, and sulfate ions should be excluded. This titrimetric procedure allows a rapid and accurate determination of thorium in the presence of moderately large quantities of rare earths such as in monazite sand.

Research Organization:
Syracuse Univ., NY (United States)
Sponsoring Organization:
US Atomic Energy Commission (AEC)
NSA Number:
NSA-06-005316
OSTI ID:
4401014
Report Number(s):
NYO--3187
Journal Information:
Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 1 Vol. 25; ISSN 0003-2700
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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