Customization: | Available |
---|---|
CAS No.: | 7758-02-3 |
EINECS: | 231-830-3 |
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item |
pharmaceutical grade |
phtography grade |
reagent grade 3 |
industrial grade |
content% ≥ |
99.0 |
99.0 |
98.0 |
98.0 |
aqueous solution reaction |
qualified passed |
qualified passed |
qualified passed |
|
chloride(Cl)% ≤ |
0.2 |
0.5 |
0.5 |
1.0 |
sulfate(SO4)% ≤ |
0.005 |
0.005 |
0.005 |
|
Ferrym(Fe)% ≤ |
0.0002 |
0.0002 |
0.0002 |
0.005 |
bromate(Bro3)% ≤ |
0.005 |
0.003 |
0.003 |
|
iodide(I)% ≤ |
qualified passed |
0.01 |
0.01 |
|
heavy metal(Pb)% ≤ |
0.0002 |
0.0001 |
0.0005 |
|
(As) ≤ |
0.0005 |
|||
loss on drying% ≤ Loss on |
0.5 |
0.5 |
0.5 |
1.0 |
water insoluble% ≤ |
qualified |
0.01 |
0.01 |
|
reference standard |
1995-CHINA Pharmacopeia |
ZBG85001-88 |
GB1277-77 |
GB1277-77 |