Molecular Formula:SiO2.nH2O

Appearance:white granular,power

Test Item:

Color:  reach or exceed the standard sample

Specific surface area(BET method),m2/g: 140-170

Eva poration loss(105C,2h),%: 4.0-7.0

Ignition loss (1000C),%: ≤5.0

PH value(10% suspension) :6.80-7.40

Percent content of SiO2, %:≥ 92

Content of Fe,mg/kg:  ≤350

NaSO4 content ,% :≤1.50

DBP absorption value,cm2/g :2.30-2.70

Siave residue(45um),%: ≤0.5

Mpa muduius 500%: ≥ 6.3

Mpa tensile strength :≥18

Elongation@break,% :≥675

Packing:25kg PP Bag or 300kg Bag as below picture

Standard: on HG/T 3081-1999

Main use: good transparent rubber product,shoe-making material,additive of plastic and polyester,cover of cable and electric wire,strenghthening agent of light colored rubber ,carrier of forage additive ,pigment additive.

Silane Coupling Agent use in rubber.

1.Promote bonding between filler and rubber

2.Wear-resistant agent for special rubber

3.Rubber processing modifier