Densities and compressibilities of aqueous sodium carbonate and bicarbonate from 0 to 45°C

J. Peter Hershey, Sara Sotolongo, Frank J Millero

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The densities and the sound speeds of aqueous NaHCO3 and Na2CO3 solutions were measured from 0.05 to 1.0m and from 0 to 45°C. These data were fitted to functions of molality and temperature and were used to calculate the apparent molal volumes Vφ{symbol} and compressibilites κφ of these solutions. Polynomial expression for Vφ{symbol} and κφ as functions of molality and temperature have been determined. The partial molal volumes and compressibilities of these solutions and literature data have been used to determine the volume ΔV and compressibility Δκ changes for the ionization of carbonic acid in aqueous solutions. These values of ΔV and Δκ have been used to estimate the effect of pressure on the ionization constants for carbonic acid from 0 to 45°C. The calculated pressure coefficients are in good agreement with the measured values.

Original languageEnglish (US)
Pages (from-to)233-254
Number of pages22
JournalJournal of Solution Chemistry
Volume12
Issue number4
DOIs
StatePublished - Apr 1983

Fingerprint

sodium carbonates
Sodium Bicarbonate
Compressibility
carbonic acid
Density (specific gravity)
compressibility
carbonates
Carbonic Acid
Ionization
ionization
Pressure
Temperature
polynomials
aqueous solutions
temperature
acoustics
Polynomials
Acoustic waves
coefficients
estimates

Keywords

  • carbonic acid
  • compressibility
  • density
  • ionization
  • NaCO
  • NaHCO
  • partial molal volume
  • pressure effects
  • sound speed

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Densities and compressibilities of aqueous sodium carbonate and bicarbonate from 0 to 45°C. / Hershey, J. Peter; Sotolongo, Sara; Millero, Frank J.

In: Journal of Solution Chemistry, Vol. 12, No. 4, 04.1983, p. 233-254.

Research output: Contribution to journalArticle

Hershey, J. Peter ; Sotolongo, Sara ; Millero, Frank J. / Densities and compressibilities of aqueous sodium carbonate and bicarbonate from 0 to 45°C. In: Journal of Solution Chemistry. 1983 ; Vol. 12, No. 4. pp. 233-254.
@article{4f94b584bd594b19848c92d1e8907ac3,
title = "Densities and compressibilities of aqueous sodium carbonate and bicarbonate from 0 to 45°C",
abstract = "The densities and the sound speeds of aqueous NaHCO3 and Na2CO3 solutions were measured from 0.05 to 1.0m and from 0 to 45°C. These data were fitted to functions of molality and temperature and were used to calculate the apparent molal volumes Vφ{symbol} and compressibilites κφ of these solutions. Polynomial expression for Vφ{symbol} and κφ as functions of molality and temperature have been determined. The partial molal volumes and compressibilities of these solutions and literature data have been used to determine the volume ΔV and compressibility Δκ changes for the ionization of carbonic acid in aqueous solutions. These values of ΔV and Δκ have been used to estimate the effect of pressure on the ionization constants for carbonic acid from 0 to 45°C. The calculated pressure coefficients are in good agreement with the measured values.",
keywords = "carbonic acid, compressibility, density, ionization, NaCO, NaHCO, partial molal volume, pressure effects, sound speed",
author = "Hershey, {J. Peter} and Sara Sotolongo and Millero, {Frank J}",
year = "1983",
month = "4",
doi = "10.1007/BF00646199",
language = "English (US)",
volume = "12",
pages = "233--254",
journal = "Journal of Solution Chemistry",
issn = "0095-9782",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Densities and compressibilities of aqueous sodium carbonate and bicarbonate from 0 to 45°C

AU - Hershey, J. Peter

AU - Sotolongo, Sara

AU - Millero, Frank J

PY - 1983/4

Y1 - 1983/4

N2 - The densities and the sound speeds of aqueous NaHCO3 and Na2CO3 solutions were measured from 0.05 to 1.0m and from 0 to 45°C. These data were fitted to functions of molality and temperature and were used to calculate the apparent molal volumes Vφ{symbol} and compressibilites κφ of these solutions. Polynomial expression for Vφ{symbol} and κφ as functions of molality and temperature have been determined. The partial molal volumes and compressibilities of these solutions and literature data have been used to determine the volume ΔV and compressibility Δκ changes for the ionization of carbonic acid in aqueous solutions. These values of ΔV and Δκ have been used to estimate the effect of pressure on the ionization constants for carbonic acid from 0 to 45°C. The calculated pressure coefficients are in good agreement with the measured values.

AB - The densities and the sound speeds of aqueous NaHCO3 and Na2CO3 solutions were measured from 0.05 to 1.0m and from 0 to 45°C. These data were fitted to functions of molality and temperature and were used to calculate the apparent molal volumes Vφ{symbol} and compressibilites κφ of these solutions. Polynomial expression for Vφ{symbol} and κφ as functions of molality and temperature have been determined. The partial molal volumes and compressibilities of these solutions and literature data have been used to determine the volume ΔV and compressibility Δκ changes for the ionization of carbonic acid in aqueous solutions. These values of ΔV and Δκ have been used to estimate the effect of pressure on the ionization constants for carbonic acid from 0 to 45°C. The calculated pressure coefficients are in good agreement with the measured values.

KW - carbonic acid

KW - compressibility

KW - density

KW - ionization

KW - NaCO

KW - NaHCO

KW - partial molal volume

KW - pressure effects

KW - sound speed

UR - http://www.scopus.com/inward/record.url?scp=33947588008&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947588008&partnerID=8YFLogxK

U2 - 10.1007/BF00646199

DO - 10.1007/BF00646199

M3 - Article

AN - SCOPUS:33947588008

VL - 12

SP - 233

EP - 254

JO - Journal of Solution Chemistry

JF - Journal of Solution Chemistry

SN - 0095-9782

IS - 4

ER -