Precipitated silica, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide. The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications, such as RUBBERS AND TIRES, FOOD, FEED, SILICON RUBBER ,PLASTICS ect.
CERTIFICATE OF ANALYSIS | ||||||||
Product | PRECIPITATED SILICA SP-160 GRANULAR | |||||||
Model | SP-160GR | Batch No | 200612 | |||||
Produce date | 2020.06.12 | Test date | 2020.06.12 | |||||
Executive Standard | HG/T3061 | Quantity | sample | |||||
PERIOD OF VALIDITY | 12months | |||||||
Detection Rusult | ||||||||
No | Item | Taget | Result | Method | ||||
1 | Appearance | White Granular | White Granular | Visual | ||||
2 | SiO2 content(on wet basis) % | ≥90 | 93 | HG/T3062 | ||||
3 | 45μm(325mesh) residue % | ≤0.5 | -- | HG/T3064 | ||||
4 | Loss on heating % | 4.0-8.0 | 6.3 | HG/T3065 | ||||
5 | Loss on ignition % | ≤7.0 | 4.1 | HG/T3066 | ||||
6 | PH Value | 5.0-8.0 | 6.6 | HG/T3067 | ||||
7 | DBP (oil absorption value) cm3/g | 2.00-3.50 | 2.3 | HG/T3072 | ||||
8 | Salt as Na2SO4 % | ≤2.5 | 1.3 | GB25576 | ||||
9 | Specific surface area m2/g | 150-175 | 169 | GB/T10722 | ||||
10 | Total Iron(Fe) content mg/kg | ≤500 | 300 | HG/T3070 | ||||
11 | Particle size ≥900μm(≤20mesh)% | ≥80 | 87 | GB/T5917.1 | ||||
12 | Particle size ≤180μm(≥80mesh)% | ≤10 | 4 |