Abstract
The ionization constant of ammonia has been determined by conductivity measurements and found to vary from 1.77×10−5 at 25°C to 1.3×10−6mol-kg−1 at 250°C. The pressure effect to 2000 bar has been measured and the ratio K2000/K1 is 6.8 at 25°C and 11 at 250°C. The standard molar volume change for the ionization at 1 bar, ΔV o 1 , changes from −28.8 at 25°C to −67 cm3-mol−1 at 250°C.
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Read, A.J. Ionization constants of aqueous ammonia from 25 to 250°C and to 2000 bar. J Solution Chem 11, 649–664 (1982). https://doi.org/10.1007/BF00650397
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DOI: https://doi.org/10.1007/BF00650397