Diatomite Filter Aid
Commodity：Diatomite Filter Aid
Alternate Name: Kieselguhr, Diatomite, Diatomaceous earth.
CAS#: 61790-53-2 (Calcined powder)
CAS#: 68855-54-9 (Flux-calcined powder)
Formula：SiO2
Structural Formula：
Uses：It can be used for brewing, beverage, medicine, refining oil, refining sugar, and chemical industry.
Specifications
|
Item |
Standard |
|
Appearance |
White /light yellow /pink white powder |
|
Permeability darcy |
0.07-0.15/0.15-0.25/0.6-1.30/1.40-2.70/2.50-3.50/ 3.50-5.00/5.00-6.50/6.50-8.00/8.00-12.00 |
|
Non-Silicon material |
≤25.0% |
|
SiO2 |
≥85% |
|
Al2O3 |
＜4.5% |
|
Fe2O3 |
≤1.5% |
|
CaO |
＜0.5% |
|
MgO |
＜0.4% |
|
Water soluble substances |
≤3.0% |
|
Loss on ignition |
≤0.5% |
|
Acid soluble substances |
≤3.0% |
|
Loss on drying |
≤3.0% |
|
PH |
6-8/8-11 |
|
Pb |
≤4.0mg/kg |
|
As |
≤5.0mg/kg |
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