Measurement and control of pH in hydrothermal solutions

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:245605

Wesolowski, D J; Palmer, D A; Mesmer, R E

Hydrogen-electrode concentration cells with liquid junction are routinely used to measure the pH of aqueous solutions from 0 to 300 C. Results include the dissociation constants of common acids and bases and the hydrolysis and complexation of metal ions in aqueous electrolytes over a wide range of salinities. Recently, we have utilized these cells to examine the sorption of H{sup +} on mineral surfaces, the solubility of minerals with continuous in situ pH measurement, and the thermal decompositon rates of organic acids.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 245605
• Report Number(s): CONF-950888-2; ON: DE96010659
• Resource Relation: Conference: International symposium on water-rock interaction, Vladivostok (Russian Federation), 13-28 Aug 1995; Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
58 GEOSCIENCES
54 ENVIRONMENTAL SCIENCES
PH VALUE
MEASURING INSTRUMENTS
HYDROTHERMAL SYSTEMS
CHEMICAL REACTIONS
TEMPERATURE RANGE 0273-0400 K
AQUEOUS SOLUTIONS
MINERALS
BRINES
ACID HYDROLYSIS