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| Signal Word | Warning |
| Hazard Phrase Codes | H290, H351, H312, H302, H373, H319, H315, H317, H400 |
| Precaution Phrase Codes | P210, P220, P221, P280 |
| UN Number | 2923 |
| UN Packing Group | III |
| UN Class | 8 |
| UN Sub Risk | 6.1 |
Safety Data Sheets (SDS) are available for all of our products and can be downloaded below.
| Purity | >=99% |
| Sulphate | <=0.005% |
| Iron | <=0.001% |
| Water | <=0.3% |
| Heavy metals | <=0.0005% |


