A method for evaluating the soil's effective cation exchange capacity and exchangeable base content using silver-thiourea
Measurement of the soil's in situ or effective cation exchange capacity (ECEC) is of major concern to professionals dealing with land disposal of cation-containing wastes. The ECEC is a measurement of the amount of excess negative charge a unit weight of soil will display under the environmental conditions experienced in the field. The measurement is accomplished by extracting all of the cations that would be released under field conditions using an unbuffered 0.01 M silver-thiourea solution and analyzing this extract for total calcium, magnesium, hydrogen, aluminum, potassium, and sodium. The ECEC then is calculated as the sum of these six cations in units of milliequivalents per 100 g of oven-dried soil.
- Research Organization:
- U.S. Army Environmental Hygiene Agency, Aberdeen Proving Ground, MD
- OSTI ID:
- 6271464
- Report Number(s):
- CONF-820132-
- Journal Information:
- Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States), Vol. STP-805; Conference: ASTM D-34 meeting, Orlando, FL, USA, 28 Jan 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
INDUSTRIAL WASTES
LAND POLLUTION CONTROL
UNDERGROUND DISPOSAL
SOILS
ION EXCHANGE
ION EXCHANGE MATERIALS
ALUMINIUM
CALCIUM
CATIONS
DEMETALLIZATION
EXTRACTION
HYDROGEN
MAGNESIUM
MEASURING METHODS
POTASSIUM
SILVER COMPOUNDS
SODIUM
SOIL CHEMISTRY
THIOUREA
ALKALI METALS
ALKALINE EARTH METALS
ANTITHYROID DRUGS
CARBONIC ACID DERIVATIVES
CHARGED PARTICLES
CHEMISTRY
CONTROL
DRUGS
ELEMENTS
HORMONE ANTAGONISTS
IONS
MANAGEMENT
MATERIALS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLLUTION CONTROL
SEPARATION PROCESSES
THIOUREAS
TRANSITION ELEMENT COMPOUNDS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
510200 - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)