Absorption of pressurized methane in normal and supercooled p-xylene revealed via high-resolution neutron imaging.

Supercooling of liquids leads to peculiarities which are scarcely studied under high-pressure conditions. Here, we report the surface tension, solubility, diffusivity, and partial molar volume for normal and supercooled liquid solutions of methane with p-xylene. Liquid bodies of perdeuterated p-xylene (p-CD), and, for comparison, o-xylene (o-CD), were exposed to pressurized methane (CH, up to 101 bar) at temperatures ranging 7.