White powder precipitated silica by selection of raw materials, with low iron raw materials. It can be dissolved by NaOH, HF. Other kinds of acid, water and organic solvents cannot dissolve the product. Resistance to high temperature, no combustion, goodinsulation,odourless properties.
SAI800 High Anti Yellowing Silica in Silicone Rubber
Low iron content with high transparent
Medium Partical Size: 10-14um and BET specific surface area 130-160 m²/g
Product Name
SiO2, Precipitated Silica, White Carbon, Silicon Dioxide, Conventional Silica Powder, Amorphous Precipitated Silica, Micro pearl precipitated silica
Chemical Properties
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.
Specifications
|
Items |
Specification |
|
Appearance |
White Powder |
|
BET specific surface area m2/g |
130-160 |
|
Salt As Na2SO4% Max |
0.7 |
|
SiO2 % Min |
98 |
|
Heating Loss at 105°C 2h % Max |
4.0-8.0 |
|
Ignition Loss at 1000°C h % Max |
7.0 |
|
pH Value(10% aqueous suspension) |
6.0-7.0 |
|
DBP absorption Value cm³/g |
2.0-2.7 |
| Total Fe mg/kg Max | 200 |
|
Medium Size(D50)µm |
10-14 |
Application
Widely used in various industries as additives, catalyst carriers, petrochemical, decolorizing agents, extinction agents, rubber reinforcements, plastic filling agents, ink thickeners, metal soft polishing agents, insulation fillers, Advanced daily cosmetics packing and spraying materials, medicine, environmental protection and other fields.
SAI800 take better reinforcement effect on high temperature vulcanized silicone rubber. It has high transparent, good antiyellowing effect, and good processability properties.
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