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Spectrophotometric Determination of Thorium in Low Grade Minerals and Ores

Abstract

The following method is intended for the determination of microgram quantities of thorium in samples of minerals and ores. The mineral sample is decomposed by repeated sintering with sodium peroxide. After digestion with water thorium peroxide hydrate is recovered by centrifugation and dissolved in hydrochloric acid. Thorium is determined spectrophotometrically with naphtarson after its separation from metals forming chloro complexes which are adsorbed on a strongly basic anion exchange resin. Interferences from a few different ions have been studied. The time required for the analysis of one sample is about 4 hours, when analysing 12 samples simultaneously
Publication Date:
Aug 15, 1960
Product Type:
Technical Report
Report Number:
AE-37
Resource Relation:
Other Information: 13 refs., 7 tabs.
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; THORIUM ORES; THORIUM MINERALS; SPECTROPHOTOMETRY; QUANTITATIVE CHEMICAL ANALYSIS; SINTERING; SODIUM OXIDES; CENTRIFUGATION; ION EXCHANGE
OSTI ID:
932346
Research Organizations:
AB Atomenergi, Nykoeping (SE)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0808232
Availability:
Commercial reproduction prohibited; OSTI as DE00932346
Submitting Site:
SWDN
Size:
18 pages
Announcement Date:
Jun 20, 2008

Citation Formats

Arnfelt, A L, and Edmundsson, I. Spectrophotometric Determination of Thorium in Low Grade Minerals and Ores. Sweden: N. p., 1960. Web.
Arnfelt, A L, & Edmundsson, I. Spectrophotometric Determination of Thorium in Low Grade Minerals and Ores. Sweden.
Arnfelt, A L, and Edmundsson, I. 1960. "Spectrophotometric Determination of Thorium in Low Grade Minerals and Ores." Sweden.
@misc{etde_932346,
title = {Spectrophotometric Determination of Thorium in Low Grade Minerals and Ores}
author = {Arnfelt, A L, and Edmundsson, I}
abstractNote = {The following method is intended for the determination of microgram quantities of thorium in samples of minerals and ores. The mineral sample is decomposed by repeated sintering with sodium peroxide. After digestion with water thorium peroxide hydrate is recovered by centrifugation and dissolved in hydrochloric acid. Thorium is determined spectrophotometrically with naphtarson after its separation from metals forming chloro complexes which are adsorbed on a strongly basic anion exchange resin. Interferences from a few different ions have been studied. The time required for the analysis of one sample is about 4 hours, when analysing 12 samples simultaneously}
place = {Sweden}
year = {1960}
month = {Aug}
}