A series of hydrothermal diamond anvil cell experiments was conducted to constrain the equilibrium distribution of molecular H2 between H2O-saturated sodium aluminosilicate melts and H2O at elevated temperatures (600–800 °C) and pressures (317–1265 MPa). The distribution of H2 between the silicate liquid and the aqueous fluid was achieved through real-time monitoring of the H-H stretching vibration under in situ conditions using Raman vibrational spectroscopy. Results show that the solubility of H2 in silicate melts saturated with H2O decreases as the temperature increases, with control exerted by the mole fraction of H2O in the melt. The dissolution of H2 in the hydrous silicate melts appears to follow Henrian behavior, resembling that of an inert, neutral non-polar species. To express species solubility as a function of temperature (T in K) an empirical equation was developed:

中文翻译：

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硅酸盐熔体中的分子 H2


进行了一系列水热金刚石砧池实验，以限制在高温 （600-800 °C） 和压力 （317-1265 MPa） 下 H2O 饱和铝硅酸钠熔体和 H2O 之间的分子 H2 平衡分布。通过使用拉曼振动光谱在原位条件下实时监测 H-H 拉伸振动，实现了 H2 在硅酸盐液体和水流体之间的分布。结果表明，H2 在用 H2O 饱和的硅酸盐熔体中的溶解度随着温度的升高而降低，其控制作用是熔体中 H2O 的摩尔分数。H2 在含水硅酸盐熔体中的溶解似乎遵循亨利行为，类似于惰性、中性非极性物质的行为。为了将物质溶解度表示为温度（T in K）的函数，开发了一个经验方程：