Evaluation of Water Activity in H2O–PEG400–PEG6000 Solutions between 318.15 and 348.15 K,Journal of Chemical & Engineering Data

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Evaluation of Water Activity in H2O–PEG400–PEG6000 Solutions between 318.15 and 348.15 K
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2018-03-21 00:00:00 , DOI: 10.1021/acs.jced.7b01126
Micaela G. Paulazzo ₁ , Francisco J. Passamonti ₁

Affiliation

The vapor pressure of H₂O(1)-polyethylene glycol 400(2)-polyethylene glycol 6000(3) solutions was evaluated experimentally in a temperature range between 318.15 and 348.15 K and in a broad range of concentrations. The dependence of the solvent activity on composition was evaluated and correlated by means of a polynomial expression, in terms of concentrations, volumetric and mass fractions, and temperature, obtaining in all cases standard deviations less than 0.0086 and 0.0106 for a₁(ϕ₂,ϕ₃,T) and a₁(w₂,w₃,T), respectively.

中文翻译：

在318.15至348.15 K之间的H ₂ O–PEG400–PEG6000溶液中水活度的评估

H ₂ O（1）-聚乙二醇400（2）-聚乙二醇6000（3）溶液的蒸气压在318.15和348.15 K之间的温度范围内和宽范围的浓度下进行了实验评估。上组合物的溶剂活动的依赖性进行评价的和相关的由多项式表达的手段，在浓度，体积和质量分数，和温度方面，在所有情况下获得的标准偏差小于0.0086和0.0106为一个₁（φ ₂， ϕ ₃，T）和a ₁（w ₂，w ₃，T）。

更新日期：2018-03-21

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