THERMODYNAMICS OF ADSORPTION. BARIUM SULPHATE--WATER SYSTEM

ADSORPTION ISOTHERMS FOR THE SYSTEM BARIUM SULFATE-WATER AT THREE TEMPERATURES HAVE BEEN OBTAINED. THERMODYNAMIC STUDY OF THESE DATA REVEALS THAT PART OF THE FREE ENERGY DECREASE IN THE ADSORPTION PROCESS INVOLVES CHANGES IN THE PARTIAL MOLAL FREE ENERGY OF THE ADSORBENT. FROM THE THREE ISOTHERMS DIFFERENTIAL AND INTEGRAL HEATS OF ADSORPTION WERE DERIVED AND COMPARED WITH NEW CALORIMETRIC DETERMINATIONS OF THE SAME THERMODYNAMIC FUNCTIONS. IN BOTH KINDS OF MEASUREMENTS EXACTLY THE SAME SYSTEM AND EXACTLY THE SAME MATERIALS WERE USED. /PCA/

• Authors:
  • Wu, Y C
  • Copeland, L E
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Adsorption; Barium; Free energy; Isotherms; Sulfates; Thermodynamics; Water
• Old TRIS Terms: Barium compounds
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213581
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 141
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM