DETERMINATION OF CATION EXCHANGE CAPACITY OF EARTH MATERIALS USING A RADIOTRACER TECHNIQUE

TWO RADIOCHEMICAL METHODS WERE INVESTIGATED FOR DETERRMINING THE CATION EXCHANGE CAPACITY OF EARTH MATERIALS HAVING WIDE RANGE IN PHYSICOCHEMICAL PROPERTIES. THE FIRST METHOD ATTEMPTED WAS UNSUCCESSFUL BUT INVOLVED DETERMINATION OF THE RADIO-ACTIVITY OF A 22 SODIUM-SOIDUMOXYACETATE SOLUTION IN ISOTOPIC EQUILIBRIUM WITH A SODIUM-SATURATED MINERAL PHASE. THE LOGIC OF THIS METHOD IS PRESENTED IN ORDER TO ILLUSTRATE PRINCIPLES OF ISOTOPIC EXCHANGE IN MINERAL SYSTEMS. THE METHOD FINALLY ADOPTED IS BASED UPON DETERMINATION OF THE RADIOACTIVITY OF A SALT-FREE, SODIUM- SATURATED MINERAL SAMPLE PREPARED USING A RADIOACTIVE SODIUMOXYACETATE SOLUTION WITH A KNOWN 22SODIUM- SODIUMOXYACETATE COMPOSITION. THIS METHOD IS LESS TIME- CONSUMING AND MORE ACCURATE THAN THE CONVENTIONAL AMMONIUM ACETATE METHOD FOR CATION EXCHANGE CAPACITY DETERMINATIONS. /AUTHOR/

  • Supplemental Notes:
    • Rr 283, 12 PP
  • Authors:
    • Murrmann, R P
    • Reynolds, R C
    • LEGGETT, D
  • Publication Date: 1970-2

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Filing Info

  • Accession Number: 00237822
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 21 1970 12:00AM