Nitrogen cryogenic properties

Cryogenic nitrogen plants, 17 275-278 Cryogenic properties, of Teflon PFA resins, 18 333t... 

Mechanical Properties. Table 2 shows the physical properties of Teflon PEA (22,23). At 20—25°C the mechanical properties of PEA, EEP, and PTEE are similar differences between PEA and EEP become significant as the temperature is increased. The latter should not be used above 200°C, whereas PEA can be used up to 260°C. Tests at Hquid nitrogen temperature indicate that PEA performs well in cryogenic appHcations (Table 3). 

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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