Product: Silica Gel for Beer
CAS NO: 112926-00-8
Molecular formula: mSiO2.nH2O
Properties:
A kind of non-crystalline micro-porous solid powder, its pore diameter is 8-16nm. Insoluble in water or any other solvent(except the caustic alkali and hydrofluoric acid). It does not react with any acid, alkali or salt. It is nontoxic, tasteless, flame-resisting and non-explosive. It possesses high stability under hot or cold atmosphere and is harmless to human body, mainly used in beer industry.
Application:
It has large specific surface area and numerous fine-pored stricture. It adsorbs the proteins which cause beer turbid and removes them through filtering, just within several minutes, thus prolonging beer storage period by 180-240 days and keeping beer from being cold muddy. It does not affect the beer foam or taste. Thanks to its superior physical and chemical properties, it does not have any adverse effect on the beer foam or taste. It generally recognized by the world beer industry. It helps improve the filter promoting effect. It is chemically stable, contains no beer soluble substances. Its surface area and porous structure are both superior to diatomite. It is a kind of idea filter promoter in aiding diatomite filter, making beer brighter and clearer.
Specification:
|
Items
|
Dry Gel
|
Wet Gel
|
|
SiO2(after ignition) (%)
|
96.0 min.
|
94.0 min.
|
|
Loss on Heating (%)
|
5 max.
|
-
|
|
Ignition loss(dry basis) (%)
|
8.5x.
|
-
|
|
Ignition loss (%)
|
-
|
70 max.
|
|
Lead(Pb) (mg/kg)
|
5.0 max.
|
-
|
|
Heavy metal(Pb) (mg/kg)
|
30 max.
|
30 max.
|
|
Arsenic(As) (mg/kg)
|
3.0 max.
|
3.0 max.
|
|
Soluble salt (%)
|
4.0 max.
|
-
|
|
Water soluble substance (%)
|
-
|
5.0 max.
|
|
Iron(Fe) (%)
|
15 or agreement
|
15 or agreement
|
|
Specific surface area (m2/g)
|
400 min.
|
400 min.
|
|
Pore volume (ml/g)
|
0.9-1.5
|
0.3-1.5
|
|
PH
|
4.0-9.5
|
2.0-5.0
|
|
D50 (μm)
|
8-21
|
7-21
|
|
