Ammonium Molybdate Tetrahydrate 99.3% AR
Confirms to USP
Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate
Product Code. |
00220 |
Grade |
AR |
Purity |
99.3% |
CAS No. |
12054-85-2 |
Molecular Formula |
(NH4)6Mo7O24.4H2O |
Molecular Weight |
1235.90 |
H.S.Code |
2841.70900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White crystalline |
Odour |
Odorless |
| pH value |
5 - 5.5 |
Melting point/ Freezing point [°C] |
90°C |
Boiling point [°C] |
190°C |
| Density [g/cm3] |
2.498 |
Solubility in water [% weight] |
43 g / 100 cc cold water |
Packaging
Specification
| Appearance | White crystalline powder |
| Assay | 99.3-101.8% |
| Assay (as MoO3) | 81 - 83% |
| Identity | To pass as per USP |
| Insoluble matter | Max 0.005% |
| Chloride (Cl) | Max 0.002% |
| Arsenate, phosphate, silicate ( PO4) | Max 0.001% |
| Nitrate (NO3) | Passes test (about 0.003%) |
| Phosphate (PO4) | Max 0.0005% |
| Heavy metals (by ICP-OES) | Max 0.001% |
| Magnesium (Mg) | Max 0.005% |
| Sodium (Na) | Max 0.01% |
| Potassium (K) | Max 0.01% |
| Sulphate (SO4) | Max 0.02% |
| Magnesium & alkali salts | Max 0.02% |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338