Abstract: A precipitated silica is disclosed. Said precipitated silica has a BET surface area of 165-195 m2/g; a CTAB surface area of 160-180 m2/g; a vicinal silanol content of 14 to 21%; a geminal silanol content of 2 to 4%; a total intrusion volume of 2 to 4 mL/g; a pore volume ratio (V2/V1) of 0.45 to 0.7; and a total pore area ranging from 52 to 70 m2/g.

Abstract: A process for preparing precipitated silica, is disclosed. The process includes preparing an aqueous solution of sodium silicate having a pH in a range of 10.6 to 10.8, simultaneously adding to said aqueous solution of sodium silicate, a sodium silicate solution, water and an acid in at least two phases to obtain a reaction mixture, wherein in an initial phase the sodium silicate solution, the water and the acid is added till the sodium ion concentration of the reaction mixture is in range of 0.13 normal to 0.57 normal and in a final phase the sodium silicate solution, the water and the acid is added till the sodium ion concentration of the reaction mixture is in a range of 0.3 to 0.9 normal; acidifying the reaction mixture with the acid to a pH in a range of 3 to 4.5, aging the reaction mixture to obtain precipitated silica and recovering the precipitated silica from the reaction mixture.

Abstract: A process for preparing precipitated silica, is disclosed. The process includes preparing an aqueous solution of sodium silicate having a pH in a range of 10.6 to 10.8, simultaneously adding to said aqueous solution of sodium silicate, a sodium silicate solution, water and an acid in at least two phases to obtain a reaction mixture, wherein in an initial phase the sodium silicate solution, the water and the acid is added till the sodium ion concentration of the reaction mixture is in range of 0.13 normal to 0.57 normal and in a final phase the sodium silicate solution, the water and the acid is added till the sodium ion concentration of the reaction mixture is in a range of 0.3 to 0.9 normal; acidifying the reaction mixture with the acid to a pH in a range of 3 to 4.5, aging the reaction mixture to obtain precipitated silica and recovering the precipitated silica from the reaction mixture.