Customization: | Available |
---|---|
Resource: | Natural |
Transport Package: | Bag |
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Item
|
Standard
|
Appearance
|
White crystalline powder
|
Clarity of solution
|
Positive
|
Assay(%)
|
clear
|
Loss on drying (%)
|
99.0-100.5
|
Residue on ignition(%)
|
≤0.40
|
Sulphate ash
|
≤0.10
|
Specific rotation
|
≤0.10
|
PH value(2% solution)
|
from +20.5+21.5
|
PH value(5% solution)
|
2.4-2.8
|
Heavy metals
|
2.1-2.6
|
Iron
|
≤3ppm
|
Copper
|
≤2 ppm
|
Total plate count
|
≤1000cfu/g
|
Arsenic
|
≤1 ppm
|
Mercury
|
≤1 ppm
|
Organic volatile impurities
|
Meets the requirements
|
Chloride(Cl%)
|
≤0.30
|
Melting poit(ºC)
|
about 190
|
Cadmium
|
≤1 ppm
|
Lead
|
≤2 ppm
|
Storage
|
in the shade
|
Packing
|
25kg/bag
|