THE SOLUBILITY ISOTHERM OF HYDROGEN IN WATER AT 217°C AND PARTIAL PRESSURES OF HYDROGEN FROM 0 TO 1065 P.S.I.A.

摘要

Hydrogen gas was dissolved in water at 217℃ over a range of partial pressures of hydrogen from 0 to 1065 p.s.i.a. This was accomplished by charging hydrogen and water into a stain¬less steel pressure vessel and allowing them to come to equilibrium in a constant temperature bath. The pressure vessel was so designed that the liquid phase could be isolated after equilibrium had been reached. The volume of gas dissolved in the water was then determined by expelling it into a calibrated expansion train. Samples of this gas were analysed in a mass spectrometer to determine whether the hydrogen had been enriched in deuterium. An enrichment factor of 2.0 was found at several partial pressures of hydrogen. The solubility isotherm is linear and passes through the origin.