Sodium Molybdate Dihydrate
Disodium Molybdate Dihydrate
- CAS
- 10102-40-6
- EC
- 600-158-6
- Sectors
- Water & Wastewater Treatment, Agriculture, Animal Nutrition
Sodium Molybdate Dihydrate (CAS 10102-40-6) is an inorganic molybdenum salt that appears as white crystals or powder, and it is used as a molybdenum source in fertilizers, as a corrosion inhibitor in water treatment, and in animal feed. It has a density of 2.37 g/mL, melting point 100°C (decomposes), and is highly soluble in water. Bulk density 1000-1400 kg/m³; stable under ambient conditions, produced by dissolving molybdenum trioxide in sodium hydroxide.
Typical Properties
| Molecular formula | H2O.1/2MoO4.Na |
|---|---|
| Molecular weight | 241.95 g/mol |
| Appearance | white crystals or powder |
| Form | Solid |
| Color | White |
| Melting point | 100 °C (dec.) |
| Density | 2.37 g/mL at 25 °C |
| Water solubility | 56 g/100 mL (O °C) |
| pH | 9-10 (840g/l, H2O, 20°C) |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 28417000 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Sodium Molybdate Dihydrate
Applications
Used as a molybdenum source in fertilizers to correct deficiencies, corrosion inhibitors in water treatment, catalysts in chemical synthesis, and in electrode materials for batteries; also in animal feed and metal finishing processes.
Safety & Risks
Moderate toxicity; irritates eyes, skin, and respiratory system upon contact or inhalation. Incompatible with strong reducers; releases molybdenum oxides on combustion. Not combustible; Hazard Class not specified, use PPE and ventilation.
Packaging
In 25kg bags or drums; store at 5-30°C in tightly sealed containers; rinse triply for recycling or puncture for disposal in landfills.