The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.14187-32-7, Name is Dibenzo-18-crown-6, molecular formula is C20H24O6. In a Article，once mentioned of 14187-32-7, Product Details of 14187-32-7
The mechanism of facilitated membrane transport of salts through supported liquid membranes containing synthetic ionophores in o-nitrophenyl octyl ether has been studied with potassium perchlorate and dibenzo-18-crown-6.As a support the microporous polypropylene membranes Accurel and Celgard 2500 were tested.The diffusion of the crown ether and crown ether complex through the membrane phase depends only on the porosity of the membrane for Accurel and on the porosity as well as the tortuosity of the membrane for Celgard 2500.The transport rate is determined by diffusion of the crown ether complex through the membrane phase.Measurements of the flux as a function of the initial salt concentration show that the cation-crown ether complex and the anion are present in the membrane phase predominantly as free ions.The partition coefficient of dibenzo-18-crown-6 for the system o-nitrophenyl octyl ether/water has been determined to be 1920 +/- 370 but due to the large ratio of aqueous to membrane volume (VW/Vm = 1200), at equilibrium 40 molpercent of the initial carrier concentration is present in the aqueous phases.From the effect of carrier concentration on the flux it was concluded that in the membrane an average fraction of crown ether of 0.35 +/- 0.07 is complexed to a cation.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Product Details of 14187-32-7, you can also check out more blogs about14187-32-7