effectiveness of furfural as an organic inhibitor in 5 percent hydrochloric acid which is used in acid pickling of steel was evaluated. lungmuir, frumkin and flory-huggins isotherms [1, 2] were used to determine the parameters of effective adsorption, free energy and entropy of adsorption. furfural indicated an inhibition less than 17 percent in concentrations of 0.001 mole per liter for a dura...

The Flory–Huggins (FH) isotherm first appeared in the literature of water contaminant adsorption mid-2000s. It has come into limelight and received considerable attention recent years, large part due to regular coverage review articles. Here, we point out that a linear form FH is incompatible with original nonlinear version. We show conclusively was destroyed beyond recognition by linearization...

– A tensile blob construction for branched structures is used to explain structural sizes larger than the strand length, as observed in neutron scattering data from equilibrium swollen networks. Under this model, equilibrium swollen networks display a base structural size, the “gel tensile blob” size, ξ, that follows the scaling relationship ξ ∼ l/(1/2−χ)P , where l is the monomer length, χ is ...

Using a vibrating tube density meter, the densities and speeds of sound 1,2-dichloroethane, methyl tert-butyl ether, diisopropyl diethyl ether were measured at T = 278.15 to 333.15 K atmospheric pressure. The three binary mixtures (1,2-dichloroethane + ethers) also experimentally determined. Redlich–Kister data treatment partial molar volume applied excess mixtures. To conclude, Prigogine–Flory...

Obecnie obserwowane są znaczne zmiany klimatu w Arktyce i Antarktyce. Wzrost średniej temperatury powietrza latach 1979-2019 był trzykrotnie wyższy niż średnia globalna. W Antarktyce największe ocieplenie występuje rejonie Półwyspu Antarktycznego. Polska również uczestniczy monitorowaniu warunków pogodowych na południowym Spitsbergenie Stacji im. S. Siedleckiego Hornsundzie oraz H. Arctowskiego...