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HOME >> PRODUCT CENTER >>Precipitated Silica >> Silica used for silicon rubber
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Silica used for silicon rubber

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  • Product description

Silica for silicon rubber 

STANDARD: HG/T 3061-2009
CAS NO: 112926-00-8(7631-86-9)
EINECS No: 231-545-4
Product Description: The product has special physicochemical properties, thus it is the best transparent reinforcing additive. It can greatly increase the anti-aging property, rebound resilience and deformation resistance and other performances. 

Standard :DB35/T 1208-2011

Items

HCP 140C

HCP 160C

HCP 180C

Appearance

Super-fine Powder

BET specific surface area  m2/g

130-150

150-170

170-190

Silica(dry basis) %

≥ 96

Heating loss (105°C) %
加热减量

4.0-8.0

Loss on ignition (1000±25°C)%

≤7.0

 PH-value(10%aqueous solution)

5.0-8.0

DBP Oil Absorption Value cm3/g

2.0-3.5

45um sieve Residue %

≤ 0.5

Soluble salt (Na2SO4)%

≤ 1.5

Cu   mg/kg

≤ 30

Mn  mg/kg

≤ 50

Fe  mg/kg

≤ 300

Average grain diameter d50  μm

12-16

Technical properties



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