| Customization: | Available |
|---|---|
| CAS No.: | 137-40-6 |
| Formula: | C3h5o2na |
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| Index | FCC-V | E281 |
| APPEARANCE | White crystalline or crystalline powder | White crystalline hygroscopic powder, or a fine white powder |
| Content | 99.0-100.5(drying basis)% | min 99.0% (105C,2h) |
| pH (10 % aqueous solution) | --- | 7.5-10.5 |
| As | --- | max 0.0003% |
| Heavy metals | --- | max 0.001% |
| Alkalinity (as Na2CO3) | Passes test (about 0.15%) | |
| Loss on drying | max 1% | max 4%(105C,2h) |
| Water insoluble | --- | max 0.1% |
| Iron | max 0.003% | max 0.005% |
| Lead | max 0.0002% | max 0.0005% |
| Mercury | --- | max 0.0001% |
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