An Experimental Study of the pVTx Properties for Aqueous Solutions of Ammonia Focusing on the Maximum Density Region
An Experimental Study of the pVTx Properties for Aqueous Solutions of Ammonia Focusing on the Maximum Density Region
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DOI：
10.1007/s10765-005-8590-7
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发表时间：
2005-11
影响因子：
2.2
通讯作者：
K. Oguchi;Y. Ibusuki
中科院分区：
文献类型：
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作者：
K. Oguchi;Y. Ibusuki
利用定容装置对氨水溶液（NH_3-H_2O混合物）的压力-体积-温度-组成（pVTx）特性进行了实验研究，重点研究了温度为253 ~ 309 K，压力为0.47 ~ 16.93MPa，密度为950 ~ 1007 kg · m-3，氨的摩尔分数为0 ~ 0.1436。本文首次对氨水溶液的最大密度行为进行了实验研究，现有的状态方程不能充分反映最大密度附近的pVTx特性。
An experimental study of the pressure–volume–temperature-composition (pVTx) properties for the aqueous solution of ammonia, namely NH3–H2O mixtures, has been conducted with the use of a constant-volume apparatus, especially focusing on the maximum density behavior, in the range of temperatures from 253 to 309 K, pressures from 0.47 to 16.93 MPa, densities from 950 to 1007 kg · m−3and compositions from 0 to 0.1436 mole fraction of ammonia. The behavior of the maximum densities for the aqueous solution of ammonia has been investigated for the first time by the present experimental study, and the available equations of state do not represent thepVTxproperties of the present measured data adequately near the maximum density region.