Oxygen cryogenic properties

Oxygen see also Elements critical constants, 6-39 to 58 cryogenic properties, 6-131 electron configuration, 1-18 to 19 enthalpy of fusion, 6-119 to 128 enthalpy of vaporization, 6-101 to 118 history, occurrence, uses, 4-1 to 42 ionization energy, 10-203 to 205 isotopes and their properties, 11-56 to 253 magnetic susceptibility, 4-142 to 147 mean free path, 6-37... 

PCTFE plastic is compatible withHquid oxygen, remains ductile at cryogenic temperatures (16—22), and retains its properties when exposed to either uv or gamma radiation. PCTFE exhibits a refractive iadex of 1.43 (ASTM D542) and an amorphous sheet can provide over 90% transmittance. 

The cryogens encountered in greatest volume include oxygen, nitrogen, argon and carbon dioxide. Their physical properties are summarized in Table 8.4. 

The chemistry of uranium interacting with atmospheric components, like carbon, nitrogen, and oxygen, poses a formidable challenge to both experimentalists and theoreticians. Few spectroscopic observations for actinide compounds are suitable for direct comparison with properties calculated for isolated molecules (ideally, gas phase data are required for such comparisons). It has been found that even data for molecules isolated in cryogenic rare gas matrixes, a medium that is usually considered to be minimally perturbing, can... 

The remaining gas mixture now has the composition nitrogen 3.7 mol%, oxygen 1.0 mol%, methane 47.9 mol%, C02 47.4 mol%. The third heuristic in Table 3.1 applies try to match the products. The appropriate selector is sharp split . Table 3.8 present lists of characteristic properties. Potential methods are absorption, cryogenic distillation, molecular sieving, membranes and equilibrium adsorption. 

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