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- W2384207309 abstract "The adsorption of single and mixed normal aliphatio alcohols from dilute carbon tetraohloride solutions by silica gel has been determined. The experimental results of single alcohols (C_2～C_6,C_8) may be expressed by Langmuir equation. Careful study of the adsorption from the following binary and ternary mixed alcohols: C_4-C_8, C_5-C_8, C_4-C_5-C_8, indicates that the adsorption of any one alcohol is less than that of the alcohol from a solution of the alcohol alone. The Langmuir type equation for mixed adsorption may be used to represent the experimental data. Plotting of the corresponding (x/m)values gives straight lines with negative slopes which vary with the initial concentration of the alcohol displaced. This fact agrees with the assumption that the decrease of adsorption of individual solutes is due to the displaoement of the solvent with subsequent shift of equilibrium and not due to simple displaoement. Furthermore, the experimental results also show that: (1) At a given initial concentration of the displaced alcohol,the negative slopes of the straight lines are independent of the chain length of the displacing alcohols; (2) If the initial concentrations of displaced aloohols are controlled in order to make the adsorbed amount of different displaced alcohols identical with each other when it is present alone, the negative slopes of straight line for different displaced alcohols are identical too. From these results, we have suggested that the adsorbed layer is monomolecular and the alcohol molecules in the monolayer will be oriented in perpendicular to the surface, with the hydroxyl groups joined to the silica gel, and the hydrocarbon chains directed toward the bulk liquid. With this adsorption model the experimental results may be explained reasonably." @default.
- W2384207309 created "2016-06-24" @default.
- W2384207309 creator A5091519452 @default.
- W2384207309 date "1981-01-01" @default.
- W2384207309 modified "2023-09-23" @default.
- W2384207309 title "ADSORPTION FROM SOLUTIONS VI. ADSORPTION OF SINGLE AND MIXED NORMAL ALIPHATIC ALCOHOLS FROM CARBON TETRACHLORIDE SOLUTIONS BY SILICA GEL" @default.
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