PVT properties of concentrated aqueous electrolytes. II. Compressibilities and apparent molar compressibilities of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 from dilute solution to saturation and from 0 to 50°C

Frank J Millero, J. Ricco, Donald R. Schreiber

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The relative sound velocities (U-U°) of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 solutions were measured from 0.05m to saturation and from 0 to 45°C. The sound speeds were combined with our earlier work and fitted to a function of molality and temperature to standard deviations within 0.3 m-sec-1. The adiabatic compressibilities, βs, were determined from the sound speeds and used to calculate adiabatic apparent molar compressibilities, Kφ{symbol},s, isothermal compressibilities, β, and apparent molar compressibilities, Kφ{symbol}, were determined from the adiabatic values using literature data for expansibilities and heat capacities. The values of Kφ{symbol} have been extrapolated to infinite dilution using an extended limiting law. The resulting K0 at various temperatures are in reasonable agreement with literature values. The results of this study have been combined with our earlier results to derive a secant bulk modulus equation of state for NaCl, Na2SO4, MgCl2, and MgSO4 solutions valid from 0 to 50°C and 0 to 1000 bar.

Original languageEnglish (US)
Pages (from-to)671-686
Number of pages16
JournalJournal of Solution Chemistry
Volume11
Issue number10
DOIs
StatePublished - Oct 1982

Fingerprint

Saturation (materials composition)
Magnesium Chloride
Compressibility
Electrolytes
compressibility
electrolytes
saturation
Temperature
Acoustic waves
acoustics
Acoustic wave velocity
Hot Temperature
acoustic velocity
bulk modulus
Equations of state
Dilution
Specific heat
dilution
standard deviation
equations of state

Keywords

  • compressibilities
  • equations of state
  • MgCl
  • MgSO
  • NaSO
  • NaCl
  • partial molar compressibilities
  • sound speeds

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

@article{80d13a759e824df09595f7a686de25d4,
title = "PVT properties of concentrated aqueous electrolytes. II. Compressibilities and apparent molar compressibilities of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 from dilute solution to saturation and from 0 to 50°C",
abstract = "The relative sound velocities (U-U°) of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 solutions were measured from 0.05m to saturation and from 0 to 45°C. The sound speeds were combined with our earlier work and fitted to a function of molality and temperature to standard deviations within 0.3 m-sec-1. The adiabatic compressibilities, βs, were determined from the sound speeds and used to calculate adiabatic apparent molar compressibilities, Kφ{symbol},s, isothermal compressibilities, β, and apparent molar compressibilities, Kφ{symbol}, were determined from the adiabatic values using literature data for expansibilities and heat capacities. The values of Kφ{symbol} have been extrapolated to infinite dilution using an extended limiting law. The resulting K0 at various temperatures are in reasonable agreement with literature values. The results of this study have been combined with our earlier results to derive a secant bulk modulus equation of state for NaCl, Na2SO4, MgCl2, and MgSO4 solutions valid from 0 to 50°C and 0 to 1000 bar.",
keywords = "compressibilities, equations of state, MgCl, MgSO, NaSO, NaCl, partial molar compressibilities, sound speeds",
author = "Millero, {Frank J} and J. Ricco and Schreiber, {Donald R.}",
year = "1982",
month = "10",
doi = "10.1007/BF00645335",
language = "English (US)",
volume = "11",
pages = "671--686",
journal = "Journal of Solution Chemistry",
issn = "0095-9782",
publisher = "Springer New York",
number = "10",

}

TY - JOUR

T1 - PVT properties of concentrated aqueous electrolytes. II. Compressibilities and apparent molar compressibilities of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 from dilute solution to saturation and from 0 to 50°C

AU - Millero, Frank J

AU - Ricco, J.

AU - Schreiber, Donald R.

PY - 1982/10

Y1 - 1982/10

N2 - The relative sound velocities (U-U°) of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 solutions were measured from 0.05m to saturation and from 0 to 45°C. The sound speeds were combined with our earlier work and fitted to a function of molality and temperature to standard deviations within 0.3 m-sec-1. The adiabatic compressibilities, βs, were determined from the sound speeds and used to calculate adiabatic apparent molar compressibilities, Kφ{symbol},s, isothermal compressibilities, β, and apparent molar compressibilities, Kφ{symbol}, were determined from the adiabatic values using literature data for expansibilities and heat capacities. The values of Kφ{symbol} have been extrapolated to infinite dilution using an extended limiting law. The resulting K0 at various temperatures are in reasonable agreement with literature values. The results of this study have been combined with our earlier results to derive a secant bulk modulus equation of state for NaCl, Na2SO4, MgCl2, and MgSO4 solutions valid from 0 to 50°C and 0 to 1000 bar.

AB - The relative sound velocities (U-U°) of aqueous NaCl, Na2SO4, MgCl2, and MgSO4 solutions were measured from 0.05m to saturation and from 0 to 45°C. The sound speeds were combined with our earlier work and fitted to a function of molality and temperature to standard deviations within 0.3 m-sec-1. The adiabatic compressibilities, βs, were determined from the sound speeds and used to calculate adiabatic apparent molar compressibilities, Kφ{symbol},s, isothermal compressibilities, β, and apparent molar compressibilities, Kφ{symbol}, were determined from the adiabatic values using literature data for expansibilities and heat capacities. The values of Kφ{symbol} have been extrapolated to infinite dilution using an extended limiting law. The resulting K0 at various temperatures are in reasonable agreement with literature values. The results of this study have been combined with our earlier results to derive a secant bulk modulus equation of state for NaCl, Na2SO4, MgCl2, and MgSO4 solutions valid from 0 to 50°C and 0 to 1000 bar.

KW - compressibilities

KW - equations of state

KW - MgCl

KW - MgSO

KW - NaSO

KW - NaCl

KW - partial molar compressibilities

KW - sound speeds

UR - http://www.scopus.com/inward/record.url?scp=0000353831&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000353831&partnerID=8YFLogxK

U2 - 10.1007/BF00645335

DO - 10.1007/BF00645335

M3 - Article

AN - SCOPUS:0000353831

VL - 11

SP - 671

EP - 686

JO - Journal of Solution Chemistry

JF - Journal of Solution Chemistry

SN - 0095-9782

IS - 10

ER -