|
Particle Morphology |
|
Item |
Unit |
BP |
EP |
USP |
FCC |
E332 |
GB1886.74-2015 |
|---|---|---|---|---|---|---|---|
Description |
/ |
White or colorless crystalline granules or powder, hygroscopic. Freely soluble in water, insoluble in ethanol. |
White or colorless crystalline granules or powder, hygroscopic. Freely soluble in water, insoluble in ethanol. |
/ |
White or colorless crystalline granules or powder, very hygroscopic in moist air. 1g dissolves in 0.5ml water, practically insoluble in ethanol. |
/ |
White or colorless crystalline granules or powder |
Identification |
/ |
Passes test |
Passes test |
Passes test |
Passes test |
/ |
/ |
Clarity & Color of Solution |
/ |
Passes test |
Passes test |
/ |
/ |
/ |
/ |
Alkalinity |
/ |
Passes test |
Passes test |
Passes test |
Passes test |
/ |
Passes test |
Assay |
% |
99.0～101.0 |
99.0～101.0 |
99.0～100.5 |
99.0～100.5 |
≥99.0 |
99.0～100.5 |
Transmittance |
% |
/ |
/ |
/ |
/ |
/ |
≥95.0 |
Water Content |
% |
4.0～7.0 |
4.0～7.0 |
/ |
/ |
/ |
/ |
Loss on Drying |
% |
/ |
/ |
3.0～6.0 (180℃, 4h) |
3.0～6.0 |
≤6.0 |
3.0～6.0 |
Sodium |
% |
≤0.3 |
≤0.3 |
/ |
/ |
/ |
/ |
Readily Carbonizable Substances |
/ |
Not deeper than standard |
Not deeper than standard |
/ |
/ |
/ |
≤1.0 |
Sulfates |
ppm |
≤150 |
≤150 |
/ |
/ |
/ |
≤150 |
Chlorides |
ppm |
≤50 |
≤50 |
/ |
/ |
/ |
≤50 |
Oxalates |
ppm |
≤300 |
≤300 |
/ |
/ |
≤100 |
≤300 |
Iron |
ppm |
/ |
/ |
/ |
/ |
/ |
≤5.0 |
Calcium |
ppm |
/ |
/ |
/ |
/ |
/ |
≤200 |
Lead |
ppm |
/ |
/ |
/ |
≤2 |
≤1 |
≤2.0 |
Arsenic |
ppm |
/ |
/ |
/ |
/ |
≤1 |
≤1.0 |
Mercury |
ppm |
/ |
/ |
/ |
/ |
≤1 |
/ |
Tartrates |
ppm |
/ |
/ |
Passes test |
/ |
/ |
/ |
pH |
/ |
/ |
/ |
/ |
/ |
7.5～9.0 |
/ |
Water Insoluble Substances |
/ |
/ |
/ |
/ |
/ |
/ |
Passes test |
* The above technical parameters are typical reference ranges. Actual test results are subject to the official Certificate of Analysis (COA) accompanying each batch of product.