Ammonium molybdate tetrahydrate
SIGALD/431346 - ACS reagent, 99.98% trace metals basis
Synonym: Ammonium heptamolybdate tetrahydrate; Molybdic acid ammonium salt tetrahydrate
CAS Number: 12054-85-2
Empirical Formula (Hill Notation): H24Mo7N6O24 · 4H2O
Molecular Weight: 1235.86
EC Number: 234-320-9
MDL Number: MFCD00167059
Linear Formula: (NH4)6Mo7O24 · 4H2O
Product Type: Chemical
| agency | suitable for SM 5210 |
| anion traces | chloride (Cl-): ≤0.002% |
| nitrate (NO3-): passes test | |
| phosphate (PO43-): ≤5 ppm | |
| sulfate (SO42-): ≤0.02% | |
| assay | 81.0-83.0% MoO3 basis |
| 99.98% trace metals basis | |
| cation traces | heavy metals: ≤0.001% (as lead) |
| Mg and allied cations: ≤0.01% | |
| density | 2.498 g/mL at 25 °C (lit.) |
| description | for inorganic trace analysis |
| form | powder |
| grade | ACS reagent |
| impurities | ≤0.005% insolubles |
| InChI | 1S/7Mo.6H3N.10H2O.18O/h;; |
| InChI key | FIXLYHHVMHXSCP-UHFFFAOYSA |
| Quality Level | 200 ![]() |
| reaction suitability | reagent type: catalyst core: molybdenum |
| SMILES string | N.N.N.N.N.N.O.O.O.O.O=[Mo |
| Application: | Ammonium molybdate tetrahydrate may be used in the following processes: • As a precursor in the generation of calcium molybdate (CaMoO4) spherulites. • Synthesis of porous carbon-supported molybdenum dioxide (MoO2). • Preparation of Iodine-iodide-molybdate solution to determine glucose level by glucose oxidase method. • Preparation of polymer bulk heterojunction solar cells. • As a precursor in the synthesis of Mo-N-codoped TiO2 (titanium dioxide). • Synthesis of MoBi2S5 (molybdenum bismuth sulphide) thin films. |
| Application: | Applied in the ultrasonic synthesis of phase-pure praseodymium molybdate, Pr2Mo3O12. Reagent used for oxidation of sulfides to sulfonyls. |
| Features and Benefits: | Meets A.C.S. reagent specificatons. |
| General description: | Ammonium molybdate tetrahydrate (AMT) is a molybdenum salt. Study of its extraction from nickel-molybdenum (Ni–Mo) ore by direct hydrometallurgical method has been reported. Its degradation by combustion to form elemental molybdenum powder using metallic reducers has been investigated. |
| Packaging: | 50, 250 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 81.0-83.0% MoO3 basis; 99.98% trace metals basis |
| Density | 2.498 g/mL at 25 °C (lit.) |
| UNSPSC | 12161600 |

