Cadmium: mode of occurrence in Illinois coal
Journal Article
·
· Science; (United States)
Portions of twenty-three representative samples of either face channel or drill cores of Illinois coal seams were ashed using high- and low-temperature procedures, then treated with the acid-digestion bomb technique for cadmium and zinc determinations by atomic absorption spectrophotometry. These results were compared to cadmium determinations done on selected ashed samples by anodic stripping voltammetry and neutron activation analysis. Sphalerite samples obtained from a high specific gravity fraction of a low temperature ash and an unashed coal sample were digested by nitric acid and analyzed for cadmium and zinc concentrations by atomic absorption. Results of analysis were: cadmium content ranged from 0.3 to 28 ppM and zinc content ranged from 18 to 300 ppM in ashed samples; zinc: cadmium rations in sphalerite samples suggest that most, if not all, of the cadmium in the coal is within sphalerite.
- OSTI ID:
- 6652999
- Journal Information:
- Science; (United States), Journal Name: Science; (United States) Vol. 181; ISSN SCIEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ACTIVATION ANALYSIS
ASHES
CADMIUM
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COAL
COAL DEPOSITS
COAL SEAMS
COMPARATIVE EVALUATIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
GREAT LAKES REGION
ILLINOIS
MATERIALS
METALS
MINERAL RESOURCES
MINERALS
NORTH AMERICA
RESIDUES
RESOURCES
SPECTROSCOPY
SPHALERITE
TEMPERATURE DEPENDENCE
USA
VOLTAMETRY
ZINC
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ACTIVATION ANALYSIS
ASHES
CADMIUM
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COAL
COAL DEPOSITS
COAL SEAMS
COMPARATIVE EVALUATIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
GREAT LAKES REGION
ILLINOIS
MATERIALS
METALS
MINERAL RESOURCES
MINERALS
NORTH AMERICA
RESIDUES
RESOURCES
SPECTROSCOPY
SPHALERITE
TEMPERATURE DEPENDENCE
USA
VOLTAMETRY
ZINC