Abstract
A precision magnetic float densitometer has been used to measure the densities of 0.1 molal LiCl, NaCl, KCl, RbCl, CsCl, NaF, KBr, Kl, and KNO3 aqueous salt solutions at one-degree intervals from 20° to 40° C. The densities have been fit to an equation of the form, dsoln = A + Bt + Ct2 + Dt3 with a maximum root-mean-square deviation of 4 p.p.m. The apparent molal volume, φV, and the apparent molal expansibility, φE, have been calculated for these solutions from the density data. The values obtained agree very well with those from the literature. The apparent molal expansibilities for these solutions, φE, have been equated to the infinite dilution values - i.e., φE = Ē°. The contributions to Ē° (salt) have been divided into ionic contributions. The expansibilities for the cations decrease in the order Na+ > K+ > Rb ∼ Cs+ > H+ > Li+ and the expansibilities for the anions increase in the order F- < Cl- ∼ Br- < I- < NO3-.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 330-333 |
| Number of pages | 4 |
| Journal | Journal of Chemical and Engineering Data |
| Volume | 13 |
| Issue number | 3 |
| State | Published - 1968 |
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- Chemistry(all)
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Apparent molal volumes of aqueous monovalent salt solutions at various temperatures. / Millero, Frank J; Drost-Hansen, Walter.
In: Journal of Chemical and Engineering Data, Vol. 13, No. 3, 1968, p. 330-333.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Apparent molal volumes of aqueous monovalent salt solutions at various temperatures
AU - Millero, Frank J
AU - Drost-Hansen, Walter
PY - 1968
Y1 - 1968
N2 - A precision magnetic float densitometer has been used to measure the densities of 0.1 molal LiCl, NaCl, KCl, RbCl, CsCl, NaF, KBr, Kl, and KNO3 aqueous salt solutions at one-degree intervals from 20° to 40° C. The densities have been fit to an equation of the form, dsoln = A + Bt + Ct2 + Dt3 with a maximum root-mean-square deviation of 4 p.p.m. The apparent molal volume, φV, and the apparent molal expansibility, φE, have been calculated for these solutions from the density data. The values obtained agree very well with those from the literature. The apparent molal expansibilities for these solutions, φE, have been equated to the infinite dilution values - i.e., φE = Ē°. The contributions to Ē° (salt) have been divided into ionic contributions. The expansibilities for the cations decrease in the order Na+ > K+ > Rb ∼ Cs+ > H+ > Li+ and the expansibilities for the anions increase in the order F- < Cl- ∼ Br- < I- < NO3-.
AB - A precision magnetic float densitometer has been used to measure the densities of 0.1 molal LiCl, NaCl, KCl, RbCl, CsCl, NaF, KBr, Kl, and KNO3 aqueous salt solutions at one-degree intervals from 20° to 40° C. The densities have been fit to an equation of the form, dsoln = A + Bt + Ct2 + Dt3 with a maximum root-mean-square deviation of 4 p.p.m. The apparent molal volume, φV, and the apparent molal expansibility, φE, have been calculated for these solutions from the density data. The values obtained agree very well with those from the literature. The apparent molal expansibilities for these solutions, φE, have been equated to the infinite dilution values - i.e., φE = Ē°. The contributions to Ē° (salt) have been divided into ionic contributions. The expansibilities for the cations decrease in the order Na+ > K+ > Rb ∼ Cs+ > H+ > Li+ and the expansibilities for the anions increase in the order F- < Cl- ∼ Br- < I- < NO3-.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000655460&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000655460
VL - 13
SP - 330
EP - 333
JO - Journal of Chemical & Engineering Data
JF - Journal of Chemical & Engineering Data
SN - 0021-9568
IS - 3
ER -