Literature data for the volumetric properties of aqueous solutions of zinc sulfate have been compiled and compared with extensive recently available measurements. A semi-empirical Pitzer model has been derived from these data that reproduces the apparent molar volumes and compressibilities of zinc sulfate solutions with good accuracy to near-saturation concentrations (m ≲ 3.0 mol·kg^–1) over the temperature range 293.15 ≤ T/K ≤ 393.15 and at pressures up to 10 MPa, using standard volumes, V°, obtained by additivity of ionic values from the literature. By including the dependence of V° on the compressibility of pure water, the model was able to predict apparent molar volumes with good accuracy even up to 100 MPa at 298 K. Of potential use for engineering applications, imposition of the inequality (∂²V_ϕ/∂T²)_p,m < 0 to the Pitzer model has created the possibility of physically reasonable extrapolations to temperatures well beyond the parameterization range.

中文翻译：

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体积为Pitzer模型的硫酸锌水溶液，温度在293.15至393.15 K，压力高达10 MPa时达到近饱和浓度

硫酸锌水溶液的体积特性的文献数据已被整理，并与近期广泛的测量结果进行了比较。半经验模型皮特泽已经从这些数据再现的硫酸锌溶液的表观摩尔体积和可压缩以良好的精度来接近饱和浓度（衍生米≲3.0摩尔公斤· ^-1）的温度范围内293.15≤ Ť / K≤393.15，并且在最高10 MPa的压力下，使用标准体积V °（通过文献中离子值的加和获得）。通过包括V的依赖性°上的纯水的可压缩性，该模型能够在298K的潜在用途至100MPa预测精度良好表观摩尔体积甚至高达工程应用，不等式的拼版（∂ ² V _φ /∂ Ť ²）Pitzer模型的_p，m <0已为物理上合理地外推到远远超出参数设置范围的温度提供了可能性。