This is made from chosen wood chips and physically activated by steam. It has the characteristics of strong adsorption, rapid filtration, high purity; and excellent performance of large surface area, pore volume, stability, etc.
This is usually applied to getting rid of pyrogen in infusion & injection; decolorizing and refining medicines & chemical reagents; and decoloring and purifying vitamin, aginomoto & other food additives. It is often used as carrier of catalyzer as well.
It conforms to the standard of Chinese Pharmacopoeia 2015, Volume 4.
|
|
|
767-1AW
|
767-2AW
|
767-9AW
|
|
Quinine sulfate adsorption
|
≥ mg/g
|
120
|
120
|
120
|
|
Methylene blue adsorption
|
≥ ml/g
|
160
|
150
|
140
|
|
PH value
|
|
4.5-7.5
|
4.5-7.5
|
4.5-7.5
|
|
Loss on drying
|
≤ %
|
5
|
5
|
10
|
|
Chloride
|
≤ %
|
0.05
|
0.02
|
0.1
|
|
Sulfate
|
≤ %
|
0.05
|
0.01
|
0.05
|
|
Sulfide
|
|
No reaction
|
No reaction
|
No reaction
|
|
Cyanide
|
|
No reaction
|
No reaction
|
No reaction
|
|
Ferric salt content
|
≤ %
|
0.01
|
0.01
|
0.02
|
|
Dissolved in ethanol
|
≤ mg
|
8
|
8
|
8
|
|
Dissolved in acid
|
≤ mg
|
8
|
8
|
8
|
|
Residue on ignition
|
≤ %
|
1
|
1
|
3
|
|
Uncarbonized matter
|
|
Uncolored
|
Uncolored
|
Uncolored
|
|
Heavy metal
|
≤ ppm
|
30
|
30
|
30
|
|
Water soluble zinc salt
|
≤ %
|
0.002
|
0.005
|
0.005
|
