The 25 ml sample of leather tanning industry was taken, pipetted and entered into 500 ml Erlenmeyer. Solution pH in each Erlenmeyer was arranged by adding HCl 0.1M and NaOH 0.1 M. pH variation used is 1, 2, 3, 4,5,6 and 7. In each solution, 5 g adsorbent is entered. It is shaken with shaker for 24 hour.