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| Signal Word | Danger |
| UN Number | N/R |
Safety Data Sheets (SDS) are available for all of our products and can be downloaded below.
| Purity; dried | >=99.00% |
| Sulphate | Complies BP |
| Iron | <=20ppm |
| Heavy Metals; as Pb | <=10ppm |
| Loss on drying | <=1.0% |
| Iodates | Complies BP |
| Thiosulphates, Barium | Complies BP |
| Nitrate,Nitrite,Ammonia | Complies BP |
| Solubility | Complies BP |
| Identity | Complies BP |
| Appearance of solution | Complies BP |


