content£º |
This is a white, high-purity reagent silica gel with uniform size. It is extensively used for analysis and separation of all kinds of natural and synthetic substances.
It is widely used in qualitative and quantitative analysis of the main ingredients or impurities in medicines, pesticides, herbal medicine, organic chemicals, 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 |
|
Calcined gypsum
(CaSO4.1/2H2O),% |
12.0-14.0 |
12.0-14.0 |
|
Chloride
(by Cl),% ¡Ü |
0.02 |
0.02 |
|
Iron(Fe),% ¡Ü |
0.020 |
0.020 |
|
pH (100g/L aqueous suspension) |
6.0-7.0 |
6.0-7.0 |
|
Sift remainder
(W=38¦Ìm),% ¡Ü |
8.0 |
8.0 |
|
Activity (1) |
Three colors separated |
Packing: 500 g net per plastic bottle.
Note:
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