Densities and apparent molar volumes of Na2SO4(aq) and K2SO4(aq) at temperatures from 298 K to 573 K and at pressures up to 30 MPa

M. Obšil; V. Majer; G. Hefter; V. Hynek

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Densities and apparent molar volumes of Na2SO4(aq) and K2SO4(aq) at temperatures from 298 K to 573 K and at pressures up to 30 MPa

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Densities and apparent molar volumes of Na2SO4(aq) and K2SO4(aq) at temperatures from 298 K to 573 K and at pressures up to 30 MPa

M. Obšil, V. Majer, G. Hefter and V. Hynek

Journal of Chemical and Engineering Data, Vol.42(1), pp.137-142

1997

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Abstract

Densities of Na2SO4(aq) and K2SO4(aq) have been measured by vibrating-tube densitometry at concentrations of 0.01 mol·kg-1 to 1.0 and 0.5 mol·kg-1, respectively, and at temperatures from 298.15 K to 572.7 K and pressures up to 30.7 MPa. Apparent molar volumes derived from these data were extrapolated using the Pitzer ion-interaction model to yield partial molar volumes of these electrolytes at infinite dilution. The two salts show similar behaviors over the whole range of conditions studied.

Details

Title: Densities and apparent molar volumes of Na2SO4(aq) and K2SO4(aq) at temperatures from 298 K to 573 K and at pressures up to 30 MPa
Authors/Creators: M. Obšil (Author/Creator)
V. Majer (Author/Creator)
G. Hefter (Author/Creator)
V. Hynek (Author/Creator)
Publication Details: Journal of Chemical and Engineering Data, Vol.42(1), pp.137-142
Publisher: American Chemical Society
Identifiers: 991005540954407891
Copyright: (c) American Chemical Society
Murdoch Affiliation: School of Chemical and Mathematical Science
Language: English
Resource Type: Journal article

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