White Carbon Black(Hydrated Silica)

Our White Carbon Black is good quality and lower price for rubber products

Name:White Carbon Black(Hydrated Silica)

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.