Table F.2 The relationship Kd(HA)/Kd(HA.A-) for Ioxynil (pKa = 3.96) ω pH 1.0 0.50 0.100 0.050 0.010 0.001 0.0001 2 1.0 1.0 1.0 1.0 1.0 1.0 1.0 3 1.0 1.1 1.1 1.1 1.1 1.1 1.1 4 1.0 1.4 1.9 2.0 2.1 2.1 2.1 5 1.0 1.8 5.7 7.7 10.8 11.8 12.0 6 1.0 2.0 9.2 17.1 52.8 99.7 109.4 7 1.0 2.0 9.9 19.7 91.7 523.5 989.0 8 1.0 2.0 10.0 20.0 99.1 916.5 5230.6 9 1.0 2.0 10.0 20.0 99.9 991.0 9164.3 10 1.0 2.0 10.0 20.0 100.0 999.1 9909.6 11 1.0 2.0 10.0 20.0 100.0 999.9 9990.9