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  • PAC, 1990, 62, 2167 (Glossary of atmospheric chemistry terms (Recommendations 1990))
  • PAC, 1984, 56, 567 (Physicochemical quantities and units in clinical chemistry with special emphasis on activities and activity coefficients (Recommendations 1983)
  • PAC, 2002, 74, 2169 (Measurement of pH. Definition, standards, and procedures (IUPAC Recommendations 2002))
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  • pH
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Source
  • PAC, 1996, 68, 957 (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996))
  • Green Book, 3rd ed.: IUPAC Quantities, Units and Symbols in Physical Chemistry. Third Edition, RSC Publishing, Cambridge 2007.
  • PAC, 1997, 69, 1007 (Reference value standards and primary standards for pH measurements in D2O and aqueousorganic solvent mixtures: New accessions and assessments (Technical Report))
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  • The quantity pH is defined in terms of the activity of hydrogen(1+) ions (hydrogen ions) in solution: pH = − lg[a(H+)] = − lg [m(H+) γ_m(H+) / m0], where a(H+) is the activity of hydrogen ion (hydrogen 1+) in aqueous solution, H+(aq), γ_m(H+) is the activity coefficient of H+(aq) (molality basis) at molality m(H+), and m0 = 1 mol kg −1 is the standard molality. [IUPAC Gold Book]
  • The quantity pH is defined in terms of the activity of hydrogen(1+) ions (hydrogen ions) in solution: pH = − lg[a(H+)] = − lg [m(H+) γ_m(H+) / m0], where a(H+) is the activity of hydrogen ion (hydrogen 1+) in aqueous solution, H+(aq), γ_m(H+) is the activity coefficient of H+(aq) (molality basis) at molality m(H+), and m0 = 1 mol kg −1 is the standard molality. [IUPAC]
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  • 2024-09-12 Changed [IUPAC Gold Book] attribution to [IUPAC] and added license and rights fields.
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