## Abstract

Densities and sound velocities in 0.1 mol · kg^{-1}, 0.5 mol · kg^{-1}, and 1.0 mol · kg^{-1} sodium carbonate and sodium sulfate solutions were determined at 1 K temperature intervals in the 278.15 K to 323.15 K range. Measured quantities were expressed as polynomials of temperature, and these polynomials were used to evaluate the apparent molar volumes V_{2}, φ(T, m), the isobaric thermal expansibilities α(T, m), the product of temperature and the second-order derivatives of volume with respect to temperature T(∂^{2}V/ ∂T^{2})_{P, m} (changes in isobaric heat capacities with respect to pressure -(∂C_{p}/∂P)_{T, m}), the isentropic compressibilities κ_{s}(T, m), the isothermal compressibilities ∂_{T}(T, m), the apparent molar compressibilities K_{2}, φ(T, m), the isochoric thermal pressure coefficients (∂P/∂T)_{V, m}, the change of cubic expansion coefficients with pressure at constant temperature (∂α/∂P)_{T, m}, and the second-order derivatives of pressure with respect to temperature T(∂^{2}P/ ∂T^{2})V, m (changes in isochoric heat capacities with respect to volume (∂C_{V}/∂V) _{T, m}).

Original language | English |
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Pages (from-to) | 2550-2561 |

Number of pages | 12 |

Journal | Journal of Chemical and Engineering Data |

Volume | 54 |

Issue number | 9 |

DOIs | |

State | Published - 10 Sep 2009 |

## ASJC Scopus subject areas

- General Chemistry
- General Chemical Engineering

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^{-1}, and 1.0 mol · kg

^{-1}sodium carbonate and sodium sulfate solutions at temperatures from 278.15 K to 323.15 K'. Together they form a unique fingerprint.