Product Description
1, silica, molecular formula: SiO2 • nH2O; Appearance: white granular or powder;
2, the nature of the product silica Bulk density 0.192-0.320, melting point 1750οC, porosity, internal large surface area, the raw rubber in the greater dispersion of power, with mixing fast, high strength. Chemical properties: silica is classified as inert material, has a high insulation, insoluble in water and acids and solvents, but soluble in caustic soda, and hydrofluoric acid, the high temperature without decomposition
.
Characteristic physico-chemical data:
Item Unit JINSIL 700 Standard
Appearance | White Powder or micro pearl | Standard |
Particle size d50 um |
1~2.5
|
ISO13320-1 |
BET m2/g |
180~200
|
GB/T 10722 |
CTAB m2/g |
175~195
|
GB/T23656 |
DBP cm3/100g |
220~300
|
HG/T 3072 |
SiO2(dry basis) % |
≥98.0
|
HG/T 3062 |
Heat Loss (2h/105°C) % |
4.0~8.0
|
HG/T 3065 |
Ignition Loss(Dry Basis)2h/1000°C % |
≤7.0
|
HG/T 3066 |
Soluble Salts % |
≤1.6
|
HG/T 3748 |
PH(5% Solution) |
5.0~8.0
|
HG/T 3067 |
Sieve analysis on 45um% |
≤0.5
|
HG/T 3064 |
300% stretching strength MPa |
≥5.5
|
HG/T 2404 |
Total Cu mg/kg |
≤10
|
HG/T 3068 |
Total Fe mg/kg |
≤500
|
HG/T 3069 |
Total Mn mg/kg |
≤40
|
HG/T 3070 |
Packaging & Shipping
Packing Size kg 10kgs bag, 350kgs bag, 700kgs bag.