Thermodynamic and kinetic properties of natural brines

Frank J Millero

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The physical chemistry of natural brines made up of mostly NaCl has been studied over the years. In this article, the work on the thermodynamics and kinetics of processes in NaCl brines will be examined. The importance of ionic interactions of the processes will be stressed. This will include the pressure-volume-temperature and physical-chemical properties of NaCl and other brine salts from 0 to 6 m, 0 to 200°C, and 0 to 1,000 bar applied pressures. Acid-base, gas-liquid, solid-liquid, and ion-complex formation processes in NaCl are examined. Equations that can be used to estimate the equilibria in NaCl are given. Pitzer models are discussed that can be used to estimate ionic equilibria in brines. The oxidation of Fe(II) and Cu(I) with O2 and H2O2 and the reduction of Cu(II) with H2O2 in NaCl are examined in terms of ionic complexes of metals with OH- and CO32-. The oxidation of H2S with O2 and H2O2 is also examined in NaCl media. Equations are given that can be used to estimate the effect of ionic interactions on kinetic processes in NaCl.

Original languageEnglish (US)
Pages (from-to)7-41
Number of pages35
JournalAquatic Geochemistry
Volume15
Issue number1-2
DOIs
StatePublished - 2009

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brines
Brines
thermodynamic properties
thermodynamics
Thermodynamics
oxidation
kinetics
liquid
Kinetics
estimates
brine
Physical chemistry
chemical property
Oxidation
physical chemistry
Coordination Complexes
Liquids
liquids
salt
chemical properties

Keywords

  • Brines
  • Kinetics
  • PVT properties
  • Redox
  • Sodium chloride
  • Thermodynamics

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Thermodynamic and kinetic properties of natural brines. / Millero, Frank J.

In: Aquatic Geochemistry, Vol. 15, No. 1-2, 2009, p. 7-41.

Research output: Contribution to journalArticle

Millero, Frank J. / Thermodynamic and kinetic properties of natural brines. In: Aquatic Geochemistry. 2009 ; Vol. 15, No. 1-2. pp. 7-41.
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