Silica Gel for Thin-layer Chromatography
Use
Extensively used for analysis and separation of various natural and synthetic substances. It is widely used for the qualitative and quantitative analysis of the main ingredients or small amount of impurities in medicines, pesticides, Chinese herbal medicines, organic chemical products, petrochemical products, cereals and foods, as well as for the purification and preparation of some substances.
Thin-layer Type H silica gel may also be used as the carrier of dry cleaning agents.
Technical Data
ITEM |
H |
HF254 |
Typical values |
||
Superior |
First |
Superior |
First |
H |
|
Calcined gypsum(CaSO4.1/2H2O),% |
- |
- |
- |
- |
-- |
Chloride (by Cl),% ≤ |
0.02 |
0.02 |
0.02 |
0.02 |
0.015 |
Iron(Fe),% ≤ |
0.015 |
0.020 |
0.015 |
0.020 |
0.003 |
pH (100g/L aqueous suspension) |
6.0-7.0 |
6.0-7.0 |
6.0-7.0 |
6.0-7.0 |
6.3 |
Sift remainder (W=38μm),% ≤ |
4.0 |
8.0 |
4.0 |
8.0 |
2.3 |
Activity (1) |
Three colors separated |
ITEM |
G |
GF254 |
Typical values |
||
Superior |
First |
Superior |
First |
G |
|
Calcined gypsum (CaSO4.1/2H2O),% |
12.0-14.0 |
12.0-14.0 |
12.0-14.0 |
12.0-14.0 |
12.9 |
Chloride (by Cl),% ≤ |
0.02 |
0.02 |
0.02 |
0.02 |
0.017 |
Iron(Fe),% ≤ |
0.015 |
0.020 |
0.015 |
0.020 |
0.003 |
pH (100g/L aqueous suspension) |
6.0-7.0 |
6.0-7.0 |
6.0-7.0 |
6.0-7.0 |
6.4 |
Sift remainder (W=38μm),% ≤ |
4.0 |
8.0 |
4.0 |
8.0 |
2.4 |
Activity (1) |
Three colors separated |
* The "three colors" shown in the table refer to BI-methyl yellow, sultan red and indigo.
Packaging: 500 g net per plastic bottle.