| Synonyms | Magnesiumdihydrogenphosphate; Magnesiumphosphate, monobasic; Monomagnesium orthophosphate |
| Definition |
|---|
| Einecs | 236-004-6 |
| Chemical name | Monomagnesiumdihydrogenmonophosphate |
| Chemical formula | Mg(H2PO4)2 nH2O (where n = 0 to 4) |
| Molecular weight | 218,30 (anhydrous) |
| Assay | Not less than 51,0 % after ignition calculated as P2O5 at the ignited basis (800 °C ± 25 °C for 30 minutes) |
| Description | White, odourless, crystalline powder, slightly soluble in water |
| Identification |
|---|
| Test for magnesium | Passes test |
| Test for phosphate | Passes test |
| MgO content | Not less than 21,5 % after ignition or at an anhydrous basis (105 °C, 4 hours) |
| Purity |
|---|
| Fluoride | Not more than 10 mg/kg (as fluorine) |
| Arsenic | Not more than 1 mg/kg |
| Lead | Not more than 1 mg/kg |
| Cadmium | Not more than 1 mg/kg |
| Mercury | Not more than 1 mg/kg |