Song, Tangqiumei’s team published research in Journal of Chemical & Engineering Data in 2019-11-14 | 6482-24-2

Journal of Chemical & Engineering Data published new progress about Absorption. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Reference of 6482-24-2.

Song, Tangqiumei; Morales-Collazo, Oscar; Brennecke, Joan F. published the artcile< Solubility and Diffusivity of Oxygen in Ionic Liquids>, Reference of 6482-24-2, the main research area is oxygen solubility diffusivity ionic liquid gravimetry.

The solubility of O2 was measured gravimetrically in 16 ionic liquids (ILs) containing piperidinium, pyrrolidinium, ammonium, tetrahydrothiophenium, methyltriazabicyclodecene, or guanidinium cations paired with bis(trifluoromethanesulfonyl)imide, bis(perfluoroethylsulfonyl)imide, or perfluoropropanoyl(trifluoromethylsulfonyl)imide anions. The temperature dependence of the solubility was determined for eight of the ILs. Henry’ law constants were determined from the solubility data as well as standard enthalpies and entropies of absorption for systems with temperature-dependent data. Knowledge of these thermodn. properties is essential in guiding the structural design of ionic liquids for different applications involving O2. The O2 solubility did not follow any obvious trend with regard to IL structure or molar volume; instead, the dipole-quadrupole interactions are the primary driving forces for O2 dissolution in ionic liquids, as demonstrated by neg. standard enthalpies of absorption for all of the ILs. In addition, diffusion coefficients of O2 in the ILs as a function of temperature (293, 313, and 333 K) and applied O2 pressure (1, 3, and 5 MPa) were obtained by fitting the time-dependent absorption data to a widely used mass diffusion model. The diffusion coefficients of O2 in ionic liquids at 293 K and 1 MPa roughly correlate inversely with the pure IL viscosity, likely due to the relatively low and similar O2 solubilities under these conditions. As expected, O2 diffusivities increase with increasing temperature However, they also increase with increasing pressure, likely due to decreasing solution viscosity with increasing gas solubility

Journal of Chemical & Engineering Data published new progress about Absorption. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Reference of 6482-24-2.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem