Activation of Iraqi Bentonite Powder with H2SO4 and its ...
activation occurred when (10%) acid was used in clay mixture. 2 /g and ( ) m. 3 /g respectively for the crude bentonite, after the activation with (10%) acid these values changed to (200 m. 2 /g ) and ( m. 3 /g respectively. On the other ha) nd maximum surface area (350) m. 2 /g was obtained by using (70%) acid activation.