Precipitated silica for silicone rubber/silica/silica particles

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 engineer

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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
ProductPRECIPITATED SILICA  SP-160 GRANULAR 
ModelSP-160GRBatch No200612
Produce date2020.06.12Test date2020.06.12
Executive StandardHG/T3061Quantitysample
PERIOD OF VALIDITY12months 
Detection Rusult
NoItemTagetResultMethod
1AppearanceWhite GranularWhite GranularVisual
2SiO2 content(on wet basis)       %≥9093HG/T3062
345μm(325mesh) residue           % ≤0.5--HG/T3064
4Loss on heating                        % 4.0-8.06.3HG/T3065
5Loss on ignition                        % ≤7.04.1HG/T3066
6PH Value5.0-8.06.6HG/T3067
7DBP (oil absorption value)  cm3/g  2.00-3.502.3HG/T3072
8Salt as Na2SO4                                 %  ≤2.51.3GB25576
9Specific surface area            m2/g150-175169GB/T10722
10Total Iron(Fe) content        mg/kg≤500300HG/T3070
11Particle size ≥900μm(≤20mesh)%≥8087GB/T5917.1
12Particle size ≤180μm(≥80mesh)%≤104

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