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  • 1975-1979  (2)
  • 1
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The influence of HCl on the anodic behaviour of Fe and Ni in DMSO/1 M H2SO4 depends on the water content of the solution. In completely anhydrous solutions the current density at the same voltage is in no case enlarged and pittings are certainly not observed. At water contents in the range 2–50% the two metals show pitting corrosion, but the current density at the same voltage is much lower than in aqueous solutions. The true anodic polarization measured with an interrupting potentiostat is very high and probably caused by a salt layer. It may be the source of the inhibition effect of DMSO. Fe in DMF/1 M H2SO4 has a similar anodic behaviour depending on the HCl concentration, but the polarization in this anhydrous solvent is much lower. The inhibition effect also seems to be lower.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1572-8927
    Keywords: Osmotic coefficients ; ammonium thiocyanate ; activity coefficients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Osmotic and activity coefficients of ammonium thiocyanate determined by the isopiestic vapor pressure method are compared with the data recently reported by Covington and Matheson. Activity coefficients calculated using the Pitzer equation are now in much better agreement although a systematic difference is evident in the two sets of data.
    Type of Medium: Electronic Resource
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