| Synonyms | SALP |
| Definition | |
| Chemical name | Sodium trialuminium tetradecahydrogen octaphosphate tetrahydrate (A) or |
| Trisodium dialuminium pentadecahydrogen octaphosphate (B) |
| Einecs | 232-090-4 |
| Chemical formula | NaAl3H14(PO4)8 · 4H2O (A) |
| Na3Al2H15(PO4)8 (B) |
| Molecular weight | 949,88 (A) |
| 897,82 (B) |
| Assay | Content not less than 95,0 % (both forms) |
| Description | White odourless powder |
| Identification | |
A.Positive test for sodium, for aluminium and for phosphate | |
B.pH | Acid to litmus |
C.Solubility | Insoluble in water. Soluble in hydrochloric acid |
| Purity | |
| Loss on ignition | 19,5 %-21,0 % (A) } (750 oC-800 oC, 2h) |
| 15 %-16 % (B) } (750 oC-800 oC, 2h) |
| Fluoride | Not more than 25 mg/kg |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 4 mg/kg |
| Cadmium | Not more than 1 mg/kg |
| Mercury | Not more than 1 mg/kg |
