Product: Silica Gel for Column-layer Chromatography
CAS NO: 112926-00-8
Molecular formula: SiO2
Properties:
White grains of homogeneous size.
Application:
Used for refinement of pertrol products removal of aromatic hydrocarbon material separation and refinement of traditional Chinese herbal medicine components, preparation of high purity substance, etc.
Specification:
|
Items
|
Quality
|
|
Industry grade
|
Reagent grade
|
|
Type 1
|
Type 2
|
Type 3
|
Type 4
|
Type 1
|
Type 2
|
Type 3
|
Type 4
|
|
Specific surface area (m2/g)
|
>450
|
380-550
|
300-450
|
<350
|
>450
|
380-550
|
300-450
|
<350
|
|
Pore Volume (ml/g)
|
0.35-0.5
|
0.6-0.8
|
0.8-1.0
|
>1.0
|
0.35-0.5
|
0.6-0.8
|
0.8-1.0
|
>1.0
|
|
Chlorides(Cl) (%)
|
-
|
0.02 max.
|
|
Iron(Fe) (%)
|
-
|
0.02 max.
|
|
PH value
|
Negotiable
|
Negotiable
|
|
Loss on Heating (%)
|
5 max.
|
5 max.
|
|
Size (μm)
|
Negotiable
|
Negotiable
|
|
Qualified size ration (%)
|
60 min.
|
60 min.
|
|
