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  • 1
    Electronic Resource
    Electronic Resource
    Calculation of liquid junction potentials for equilibrium studies (1982)
    s.l. : American Chemical Society
    Analytical chemistry 54 (1982), S. 2518-2524 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00251a025
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  • 2
    Electronic Resource
    Electronic Resource
    Fluoride standards in determination of equilibrium constants of metal ion-fluoride complexes (1984)
    s.l. : American Chemical Society
    Analytical chemistry 56 (1984), S. 749-752 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00268a035
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  • 3
    Electronic Resource
    Electronic Resource
    Improved apparatus and procedures for the measurement of solubility of rapidly equilibrating solid–liquid systems to 90 °C (1999)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 1481-1485 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An improved apparatus for measuring solubilities of solid–liquid systems at temperatures to 90 °C is described. The apparatus has a high capacity (up to 56 samples) and a long term temperature stability of ±3 mK. The design allows the saturated solution to be multiply sampled and microfiltered at the equilibration temperature, making it particularly suited to rapidly equilibrating systems. The reliability of the apparatus and sampling procedures were tested by measuring the solubilities of NaCl, Na2SO4, and Na2CO3 in water. The data obtained showed a routine precision of ±0.05% relative and agreed to within ±0.1% of recommended International Union of Pure and Applied Chemistry values. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1149610
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of annealing on infrared and thermal-effusion spectra of sputtered a-Si:H alloys (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 403-409 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Infrared spectroscopy and thermal effusion have been used to study the nature of the silicon-hydrogen bond in sputtered a-Si:H alloys. The samples were prepared by reactive sputtering under different deposition conditions to produce varying hydrogen contents. The Fourier transform infrared spectra have been analyzed using the simplex algorithm to deconvolute the component peaks. This technique has been applied separately to both the stretching- and bending-mode regions of the infrared absorption spectra. Studies have been made of the effects of annealing on both the infrared and the thermal evolution spectra of hydrogen. The results indicate a redistribution and transformation of different bonding configurations due to annealing. A comparative study is presented of the thermal-effusion spectra for partial and total degassing with the infrared spectra taken before and after each phase of degassing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350723
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  • 5
    Electronic Resource
    Electronic Resource
    Zinc electrowinning from acidic sulfate solutions: Part I: Effects of sodium lauryl sulfate (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 673-678 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The effects of sodium lauryl sulphate(SLS) in the presence and absence of antimony(iii) on the current efficiency, power consumption and polarization behaviour of zinc were determined. The surface morphologies and deposit crystallographic orientations were also evaluated. The results were compared with glue as the addition agent. The addition of sodium lauryl sulfate to the zinc sulfate solution increased current efficiency, reduced power consumption and improved the surface morphology. Maximum current efficiency and minimum power consumption were achieved on addition of 0.02mgdm−3 Sb with 1mgdm−3 sodium lauryl sulfate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018431619595
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  • 6
    Electronic Resource
    Electronic Resource
    The effects of 4-ethylpyridine and 2-cyanopyridine on zinc electrowinning from acidic sulfate solutions (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 738-744 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The effects of 4-ethylpyridine and 2-cyanopyridine on the electrowinning of zinc in the presence and absence of antimony have been studied. The results are compared with those of a common industrial additive, gum arabic. Addition of either compound reduced current efficiency, increased power consumption and lowered the surface quality of electrodeposited zinc. Both the additives showed similar polarization behaviour to gum arabic. Addition of 0.04mgdm−3 antimony increased current efficiency, reduced power consumption and altered the surface morphology and crystallographic orientations. Combinations of antimony with 4-ethylpyridine resulted in very good current efficiencies, and zinc morphology and quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018452224138
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of 2-picoline on zinc electrowinning from acidic sulfate electrolyte (1996)
    Springer
    Journal of applied electrochemistry 26 (1996), S. 1245-1252 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The behaviour of 2-picoline with and without antimony during electrowinning of zinc from acidic sulfate solutions was studied and was compared with that of gum arabic which is commonly used in industry as a levelling agent. The effects of these additives on current efficiency, power consumption, deposit quality, polarization behaviour, crystallographic orientation and surface morphology were determined. The addition of 2-picoline reduced current efficiency, increased power consumption and lowered the surface quality of electrowon zinc. Addition of antimony increased current efficiency, reduced power consumption and produced improved surface morphology and crystal orientations, (101) (112) (102) (103) (114) over a wide range of their combinations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00249926
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  • 8
    Electronic Resource
    Electronic Resource
    Zinc electrowinning from acidic sulphate solutions Part II: Effects of triethylbenzylammonium chloride (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 915-920 
    Details
    ISSN: 1572-8838
    Keywords: Zinc electrowinning ; antimony ; triethylbenzylammonium chloride ; current efficiency ; polarization ; morphology ; power consumption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The effects of triethylbenzylammonium chloride (TEBACl) on the electrowinning of zinc from acidic sulfate solutions have been studied in the presence and absence of antimony(iii). The factors considered included the current efficiency (CE), power consumption, polarisation behaviour, and the crystallographic orientations and surface morphology of the deposits. Compared with the traditional industrial additive, glue, the addition of TEBACl increased CE, reduced power consumption and improved the surface morphology. Maximum CE and minimum power consumption were obtained at 2mgdm−3 TEBACl and 0.01mgdm−3 Sb(iii). The exchange current density, Tafel slope and transfer coefficient were determined to elucidate the nature of the electrode reactions involved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003404130043
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  • 9
    Electronic Resource
    Electronic Resource
    The solvation of fluoride ions. I. Free energies for transfer from water to aqueous alcohol and acetonitrile mixtures (1988)
    Springer
    Journal of solution chemistry 17 (1988), S. 535-546 
    Details
    ISSN: 1572-8927
    Keywords: Fluoride ion ; solvation ; transfer free energies ; methanol ; ethanol ; ethyleneglycol ; acetonitrile
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The solubilities of NaF and LiF have been measured in mixtures of water with methanol, ethanol, ethylene glycol and acetonitrile over the whole composition range. Gibbs free energies of transfer of the fluoride ion from water to the mixed and pure solvents have been calculated from the solubility data via the tetraphenylarsonium tetraphenylborate assumption. The values so obtained indicate that the fluoride ion is preferentially solvated by water as a result of its strong hydrogen-bonding capabilities. Desolvation of the fluoride ion is especially marked in acetonitrile-rich solutions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00651461
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  • 10
    Electronic Resource
    Electronic Resource
    Conductivities of KF and CsF in methanol at 25°C (1996)
    Springer
    Journal of solution chemistry 25 (1996), S. 541-553 
    Details
    ISSN: 1572-8927
    Keywords: Potassium ; cesium ; fluoride ; halide ions and perchlorate ; methanol ; water ; molar conductivities ; ion association ; Gibbs energies of transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Electrolytic conductivities of KF and CsF in methanol solution have been determined at 25°C. The single ion molar conductivities of the fluoride ion, obtained from the two salts are in excellent agreement and indicate that the F− ion is highly solvated in methanol (MeOH). Combination of the present and literature data for related salts in both water and MeOH indicate that while the primary solvation of ions may be more extensive in H2O there is considerable enhancement of the secondary solvation sheath in MeOH. Recalculation of high precision literature conductivity data using a consistent mathematical approach indicates that ion pair formation constants for simple 1:1 electrolytes in MeOH are 1 or 2 orders of magnitude greater than in H2O. This is shown to be entirely due to the less favorable solvation of ions in MeOH, as the Gibbs energies of transfer of the neutral ion pairs MX from H2O to MeOH are also unfavorable. Calculations also show that ion association in MeOH is strongly influenced by coulombic interactions whereas in H2O short range interactions are generally more important.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00973084
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