 |
| Menge: | |
|---|---|
DY8493
7722-88-5
231-767-1
H4O7P2.4Na
tetrasodium pyrophosphate
| Index name | Specification |
| Appearance | White powder |
| Assay | 96.5%min |
| P2O5 | 53.0%min |
| Water insoluble | 0.2%max |
| PH of 1% solution | 9.9 to 10.7 |
| Fluoride | 0.005%max |
| As | 0.0003%max |
| Loss on drying | 0.5%max |
| Heavy metal, as Pb | 0.001% |
| Index name | Specification |
| Appearance | White powder |
| Assay | 96.5%min |
| P2O5 | 53.0%min |
| Water insoluble | 0.2%max |
| PH of 1% solution | 9.9 to 10.7 |
| Fluoride | 0.005%max |
| As | 0.0003%max |
| Loss on drying | 0.5%max |
| Heavy metal, as Pb | 0.001% |