... UI (trifluoracetio acid). 0.8 0.6 0.4 0.2 0 The Journal of Organic Chemistry p, =-5.75 18.' y, 0 0.2 0.4 0.6 0.8 UI (trifluoracetic acid). ... and 10 is eq 11. An alternative form is given in eq 12. log (kPh,/kH) = PI'J'Iph + P'J (11) log (kPh,/kH) = PIt'JIph + (P/PI)'J] (12) ...