THE BEHAVIOR OF ELECTROLYTIC SOLUTIONS AT ELEVATED TEMPERATURES AS DERIVED FROM CONDUCTANCE MEASUREMENTS

Technical Report · Thu Jun 01 04:00:00 EDT 1961

DOI:https://doi.org/10.2172/4023726· OSTI ID:4023726

Wright, J. M.; Lindsay, Jr., W. T.; Druga, T. R.

Methods and techniques for measuring the conductances of reactor solutions at elevated temperatures and to interpret the results with electrolytic solution theories are discussed. Criteria applied to room-temperature conductances for determining complete ionization of 1-1 electrolytes were applied to the Noyes high-temperature conductance data obtdined on NaCl, HCl, KCl, NaOH, AgNO3, and H/sub 3/PO/sub 4/ solutions. lt was found that the first four electrolytes behave as strong electrolytes up through temperatures of 218, 218, 281, and 156 deg C, respectively. Application of the Bjerrum theory showed that, somewhat above each of these temperatures, these electrolytes begin to associate by ion-pair formation. H/sub 3/PO/sub 4/ solutions associated at room temperature and above. AgNO/sub 3/ solutions appeared to asscciate at all temperatures. The equivalent conductances and infinite dilution and the dissociation constants for each of the electrolytes were calculatsd. An apparatus was constructed and measurements were made on the conductances of LiOH and NH/sub 4/OH solutions over the temperature range of 100 to 520 deg F. Equivalent conductances at infinite dilution were calculated. The pH of reactor coolants using LiOH or NH/sub 4/OH was calculated from the disscciation constants for water, LiOH, and NH/sub 4/OH at elevated temperatures. (auth)

• Research Organization: Westinghouse Electric Corp. Bettis Atomic Power Lab., Pittsburgh
• DOE Contract Number: AT(11-1)-GEN-14
• NSA Number: NSA-15-024784
• OSTI ID: 4023726
• Report Number(s): WAPD-TM-204
• Country of Publication: United States
• Language: English

Related Subjects

ACIDITY
AMMONIUM COMPOUNDS
BEHAVIOR
BJERRUM METHOD
CHEMISTRY
COOLANTS
ELECTRIC CONDUCTIVITY
ELECTROLYSIS
ELECTROLYTES
HIGH TEMPERATURE
HYDROCHLORIC ACID
HYDROXIDES
INSTRUMENTS
IONIZATION
LITHIUM HYDROXIDES
MEASURED VALUES
PHOSPHORIC ACID
PLANNING
POTASSIUM CHLORIDES
REACTORS
SILVER NITRATES
SODIUM CHLORIDES
SODIUM HYDROXIDES
SOLUTIONS
TEMPERATURE
WATER