Volume of supercooled water under pressure and the liquid-liquid critical point
Volume of supercooled water under pressure and the liquid-liquid critical point
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DOI：
10.1063/1.3487999
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发表时间：
2010-10-14
影响因子：
4.4
通讯作者：
Mishima, Osamu
中科院分区：
文献类型：
--
作者：
Mishima, Osamu
使用乳化水在约200-275 K和40-400 MPa下获得水(H2O)的体积。当压力高于大约 200 MPa 时，体积与温度的关系图显示出轻微向下凹的曲率。这与液-液临界点假说相一致，但与无奇点场景很难相容。当假设临界点存在于大约 50 MPa 和大约 223 K 时，实验体积和推导的压缩率由修正的 Fuentevilla-Anisimov 标度方程定性描述。 (C) 2010 年美国物理研究所。 [doi:10.1063/1.3487999]
The volume of water (H2O) was obtained at about 200-275 K and 40-400 MPa by using emulsified water. The plot of volume against temperature showed slightly concave-downward curvature at pressures higher than approximate to 200 MPa. This is compatible with the liquid-liquid critical-point hypothesis, but hardly with the singularity-free scenario. When the critical point is assumed to exist at approximate to 50 MPa and approximate to 223 K, the experimental volume and the derived compressibility are qualitatively described by the modified Fuentevilla-Anisimov scaling equation. (C) 2010 American Institute of Physics. [doi:10.1063/1.3487999]