Transference numbers for ultra concentrated solutions of aqueous hydrochloric acid at 25°C |
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| Authors: | Arthur Davies Barry Steel |
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| Affiliation: | (1) Salisbury Site, South Australian College of Advanced Education, Salisbury East, South Australia, 5109;(2) Physical and Inorganic Chemistry Department, University of Adelaide, Adelaide, South Australia, 5000 |
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| Abstract: | Transference numbers of HCl(aq) solutions at 25°C, from 0.01 to 13.6 mol-kg–1(m) have been obtained by measuring the emf of cells with transference using hydrogen gas/platinum electrodes. Good agreement is obtained at concentrations up to 1 m with all previous data, and our results strongly corroborate those of King and Spiro over the 2–8m concentration range. The transference numbers of the hydronium ion fit the empirical equation,HHCl = 0.821 + 0.0457m1/2 – 2.476×10–2m – 1.90×10–4m2 – 1.45×10–5m3 the maximum deviation in THHCl being 0.003. |
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| Keywords: | Transference number hydrogen electrode hydrochloric acid concentrated solution |
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