Silica silicon dioxide

Product Efficacy:
No.1 Its PH is nearly neutral, and with stable chemical properties, it has no chemical reaction to elements like Cu, Fe, l and Co, etc., guaranteeing the efficacy of the formula.
No.2 With a low water content of less than 0.1%, the premix compound obtains a lower content of free water, preventing from discoloration and agglomeration
No.3 With a volume weight of 0.8g/cm3 or so, silica is close to that of most microelement additives, appropriate for mixing uniformity of premix in the process.
No.4 Silica can increase the fluidity of premix and is convenient for feeding of premix, reducing premix's residual in equipment.
No.5 Silica has low content of calcium, less than 1%, and with stable chemical properties, it has no reaction with acid or alkali
No.6 Silica has low content of iron, less than 50mg/kg, and it is not easy to be discolored in the post processing.
No.7 Obtaining fine granularity, silica is conducive to even distribution in the post processing.
No.8 Heavy metal contents are significantly lower than the one stipulated in national standard.


Indicator
Chemical name：Silicon dioxide
Formula：SiO2
Molecular weight：60.09
Appearance: White powder, anti-caking ,good fluidity

Physical and Chemical indicator：
Item Indicator
SiO2,% 96
rsenic(As)，mg/kg ≤3 mg/kg
Lead(Pb), mg/kg ≤5 mg/kg
Cadmium(Cd), mg/lg ≤0.5 mg/kg
Mercury(Hg), mg/kg ≤0.1mg/kg
Particle size 150 µm（100mesh) ≥95%
pH ≥6.0
Loss on drying ≤5%

Скачать видео