... , such as Poland, Italy, Belgium,Turkey and precipitated silica Specification ItemValueAppearanceWhite granularLoss on drying 105 2h %4.0 ... g2.00-3.50SiO2 %≥90Na2SO4 %≤1.50General description: Precipitated silica with special physic-chemical properties, work as reinforcing ... transparent fillers highly valued in formulation of rubber-based blends. In particular, They lead to enhanced ...