| PH: | 6.0-7.0 | Shape: | Powder |
|---|---|---|---|
| Model Number: | H; HF254 ;G ; GF254 | CAS No.: | 112926-00-8 |
| EINECS No.: | 231-545-4 |
It is mainly used for pharmaceuticals, pesticides, Chinese herbal medicine, organic chemical products, food, food ingredients and trace of impurities of qualitative and quantitative analysis and some material purifying and preparing.
Thin layer chromatography silica gel is a white powder particle, the main ingredient is SiO2. It features uniform particle size, high purity, good adsorption and selectivity, stable product quality. Because of the special manufacturing process to make its surface has better hydroxyl activity. It has an irreplaceable role in analysis and detection.
According to the particle size can be divided into the following two classes:
Normal :10-40um high-efficacy:5-10um 3-10um
| ITEM | Specification | |||
| H | HF254 | G | GF254 | |
| Calcined gypsum(CaSO4°1/2H2O) % | —— | —— | 12-14 | 12-14 |
| chlorides(Cl-) %≤ | 0.02 | 0.02 | 0.02 | 0.02 |
| iron(Fe) %≤ | 0.02 | 0.02 | 0.02 | 0.02 |
| PH(100g/L water suspension) | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 |
| activity | Three colors separated | |||
|
H:high purity silica gel powder; HF254:high purity silica gel powder of contain fluorescent powder ; G:high purity silica gel powder of contain Calcined gypsum; GF254: high purity silica gel powder of contain fluorescent powder and Calcined gypsum
The “three colors” shown in the table refer to BI-methy1 yellow, sultan red and indigo. |
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500g/bottle(10kgs/carton)
1kg/bag (10kgs/carton, 10bags/carton)
5kgs/bag (20kgs/carton, 4bags/carton)
25kgs /bag (imported kraft coated woven)
25kgs/barrel (cardboard or polyethylene barrel or aluminum barrel)
Contact Person: Mrs. Zhang
