Abstract
The relative sound speed of mixtures of aqueous solutions of NaCl-MgSO4 and MgCl2-Na2SO4 at I=0.1 and 0.5m have been determined at 5, 15, and 25°C and pressures to 1000 bars. The resulting sound speeds, adiabatic and apparent molal compressibilities have been compared to results estimated from binary solutions using an additivity principle - Young's rule. The estimated sound speeds agree with the measured values for the NaCl-MgSO4 system to ±0.15 m-sec-1 and for the Na2SO4-MgCL2 system to ±0.20 m-sec-1. The deviations increase with increasing ionic strength (±0.08 m-sec-1 at I=0.1 and ±0.25 m-sec-1 at I=0.5 m). The sound speed of seawater have also been estimated from 0 to 40°C, 0.1 to 0.7 ionic strength and 0 to 1000 bars. The estimates were found to be in good agreement (±0.4 m-sec-1) with the measured values. These results indicate that reasonable estimates of the adiabatic PVT properties of dilute mixtures of electrolyte solutions can be made using the additivity principle, without excess mixing terms.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 301-310 |
| Number of pages | 10 |
| Journal | Journal of Solution Chemistry |
| Volume | 14 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 1985 |
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Keywords
- adiabatic properties
- MgCl
- MgSO
- NaSO
- NaCl
- sea salts
- Speed of sound
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
The speed of sound in mixtures of the major sea salts. A test of Young's rule for adiabatic PVT properties. / Millero, Frank J; Chen, C. A.
In: Journal of Solution Chemistry, Vol. 14, No. 4, 04.1985, p. 301-310.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The speed of sound in mixtures of the major sea salts. A test of Young's rule for adiabatic PVT properties
AU - Millero, Frank J
AU - Chen, C. A.
PY - 1985/4
Y1 - 1985/4
N2 - The relative sound speed of mixtures of aqueous solutions of NaCl-MgSO4 and MgCl2-Na2SO4 at I=0.1 and 0.5m have been determined at 5, 15, and 25°C and pressures to 1000 bars. The resulting sound speeds, adiabatic and apparent molal compressibilities have been compared to results estimated from binary solutions using an additivity principle - Young's rule. The estimated sound speeds agree with the measured values for the NaCl-MgSO4 system to ±0.15 m-sec-1 and for the Na2SO4-MgCL2 system to ±0.20 m-sec-1. The deviations increase with increasing ionic strength (±0.08 m-sec-1 at I=0.1 and ±0.25 m-sec-1 at I=0.5 m). The sound speed of seawater have also been estimated from 0 to 40°C, 0.1 to 0.7 ionic strength and 0 to 1000 bars. The estimates were found to be in good agreement (±0.4 m-sec-1) with the measured values. These results indicate that reasonable estimates of the adiabatic PVT properties of dilute mixtures of electrolyte solutions can be made using the additivity principle, without excess mixing terms.
AB - The relative sound speed of mixtures of aqueous solutions of NaCl-MgSO4 and MgCl2-Na2SO4 at I=0.1 and 0.5m have been determined at 5, 15, and 25°C and pressures to 1000 bars. The resulting sound speeds, adiabatic and apparent molal compressibilities have been compared to results estimated from binary solutions using an additivity principle - Young's rule. The estimated sound speeds agree with the measured values for the NaCl-MgSO4 system to ±0.15 m-sec-1 and for the Na2SO4-MgCL2 system to ±0.20 m-sec-1. The deviations increase with increasing ionic strength (±0.08 m-sec-1 at I=0.1 and ±0.25 m-sec-1 at I=0.5 m). The sound speed of seawater have also been estimated from 0 to 40°C, 0.1 to 0.7 ionic strength and 0 to 1000 bars. The estimates were found to be in good agreement (±0.4 m-sec-1) with the measured values. These results indicate that reasonable estimates of the adiabatic PVT properties of dilute mixtures of electrolyte solutions can be made using the additivity principle, without excess mixing terms.
KW - adiabatic properties
KW - MgCl
KW - MgSO
KW - NaSO
KW - NaCl
KW - sea salts
KW - Speed of sound
UR - http://www.scopus.com/inward/record.url?scp=0003560087&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0003560087&partnerID=8YFLogxK
U2 - 10.1007/BF00644460
DO - 10.1007/BF00644460
M3 - Article
VL - 14
SP - 301
EP - 310
JO - Journal of Solution Chemistry
JF - Journal of Solution Chemistry
SN - 0095-9782
IS - 4
ER -