Method of test for thorium in industrial water and industrial waste water - approved 1973
Book
·
OSTI ID:6949322
Thorium was determined spectrophotometrically using 1-(o-arsonophenylazo)-2-napthol-3, 6-disulfonic acid after the Th had been coprecipitated with Ca as the oxalate salts and redissolved. The method is sensitive to less than 1 x 10/sup -9/ g Th/g H/sub 2/O. The absorbance of the complex was measured at 545 m..mu... Ferric iron is the primary interference and its interference is minimized by adding hydroxylamine hydrochloride and boiling the test solution to reduce the iron.
- OSTI ID:
- 6949322
- Report Number(s):
- ASTM-D-2333; ANSI-N-158-1973
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACCURACY
ACTINIDES
CHEMICAL ANALYSIS
ELEMENTS
INDUSTRIAL WASTES
LIQUID WASTES
METALS
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROPHOTOMETRY
STANDARDS
THORIUM
WASTES
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACCURACY
ACTINIDES
CHEMICAL ANALYSIS
ELEMENTS
INDUSTRIAL WASTES
LIQUID WASTES
METALS
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROPHOTOMETRY
STANDARDS
THORIUM
WASTES