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. 2018 Aug 1;18(8):1023–1040. doi: 10.1089/ast.2017.1770

Table B2.

Per-Ion Activity Coefficients for Different Ionic Strengths

Ion I = 0 M I = 0.1 M
HSO3 1.0 0.770
SO32− 1.0 0.364
HS 1.0 0.762
S2− 1.0 0.377
OH 1.0 0.762
H+ 1.0 0.826