The deformation of the electrocapillary curve due to adsorption of organic molecules

Kelsh, D.J.

doi:10.31274/rtd-180817-4116

Cited by 2 publications

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“…The phenol in 0.1-N perchloric acid system was chosen because a complete investigation of the electrocapillary properties of this system had been done in this laboratory by n. Kelsh (23,30). The maximum surface concentration, t , was evaluated from max As would be expected, the electrocapillary curves calculatoc] from the interfacial ripple data assuming E=0 agreed quite well with the reference data at the lower concentrations;…”

Section: Introductionmentioning

confidence: 82%

“…The development of a method for studying liquid-liquid interfaces obviously necessitates the choice of an interfacial system for experimentation. A liquid-liquid interface which has previously received much attention (1,7,8,10,11,15,20,23,26,27,(30)(31)(32)(33)(51)(52)(53)(54)(55)(56)(57), and is of interest because of its unique properties is the interface between an aqueous electrolyte solution, containing a surfactant and mercury.…”

Section: Please Notementioning

confidence: 99%

“…Another The interface between electrolyte solutions and mercury has long been investigated by chemists and physicists (1,1,8,10,11,15,20,23,25,27,30,32,33,40,41,(51)(52)(53)(54)(55)(56)(57). Excellent reviews are available summarizing these investigations (10,20).…”

Section: Intermediate Surface Behaviormentioning

confidence: 99%

“…Now we have a simple model for the surface tension behavior during changes in polarization. This simple model is at best approximate for a system in which no adsorption occurs, but may be suitable for treatment of the zero elasticity limiting behavior of interfacial ripples (where again surfactant is absent), Adsorption at the aqueous solution-mercury interface has been shown to be potential dependent (10,11,20,23,26,27,30,32). This implies that the surface coverage and elastic modulus will change with the polarization of the interface.…”

Section: Ecmmentioning

confidence: 99%

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Propagation characteristics of interfacial ripples at the polarized aqueous solution-mercury interface

Bierwagen

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1968Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy. 15 4 3 2 , A.K +A_K +A_K +A,K+A^ E = -J --i ± y.) (45) K CgK +C2K +C,K+Cq with the coefficients Ai and Ci defined as follows; = -ito (p+p') (ym+y'ra') / A^ = [4yy'mm'-iw(y+y')(p+p')], A^ = 4(y^m+y ^m ), A^ = [4yy'+ i^(y'm'+ym) ] , ^4 = CQ = (p+p'), Ci = i(y'm'+ym), C; = ^^W+V'), and 2 C3 = -Y/O) . This formula involves no approximations, and covers the entire range of E. Let us consider equation 44 for the case E-»-N, and solve the equation for y. This leads to the following formula : GVAL GVAL (see Figure 5, Appendix B) was written to generate interfacial tension values at arbitrary voltages from coefficients of a polynomial fit to electrocapillary curves produced by a program, ECl, written by D. Broadhead^. The procedure used was to input interfacial tensionvoltage values into ECl, and then take the polynomial fit from this program into GVAL, which will then calculate Y values at any voltage desired. The program was written because some of the reference interfacial tension values were measured at 100 mv. intervals, while during much of the interfacial ripple experimentation, the data were measured at 25 mv. intervals. CALB CALB (see Figure 6, Appendix B) was programmed to fit the ripple generator amplitude response at constant electrical input-frequency data, and to generate coefficients from this fit. The main purpose of the program was to catalogue and arrange amplitude-frequency data to be fed into sub routine OPLSPA. This subroutine, available at the ISU computer library, is written to take an array of dependent ^D. Brcadhead, unpublished results.

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Section: Introductionmentioning

confidence: 82%

Section: Please Notementioning

confidence: 99%

Section: Intermediate Surface Behaviormentioning

confidence: 99%

Section: Ecmmentioning

confidence: 99%

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Propagation characteristics of interfacial ripples at the polarized aqueous solution-mercury interface

Bierwagen

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“…The interface between electrolyte solutions and mercury has long been investigated by chemists and physicists (1,1,8,10,11,15,20,23,25,27,30,32,33,40,41,(51)(52)(53)(54)(55)(56)(57). Excellent reviews are available summarizing these investigations (10,20).…”

Section: The Mercury-solution Interface Introductionmentioning

confidence: 99%

Propagation characteristics of interfacial ripples at the polarized aqueous solution-mercury interface

Bierwagen

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The deformation of the electrocapillary curve due to adsorption of organic molecules

Abstract: The cell 41 Dropping mercury electrode 4-3 Procedure 44 EXPERIMENTAL RESULTS 4g Electrocapillary Data 4g Differential Double Layer Capacitance Data 4g DISCUSSION 84

Cited by 2 publications

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Propagation characteristics of interfacial ripples at the polarized aqueous solution-mercury interface

Propagation characteristics of interfacial ripples at the polarized aqueous solution-mercury interface

Propagation characteristics of interfacial ripples at the polarized aqueous solution-mercury interface

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