Molybdenum Oxide
Molybdenum Trioxide, Molybdic Anhydride, MoO3, Molybdic Acid Anhydride
- CAS
- 1313-27-5
- EC
- 215-204-7
- Sectors
- Home Care & Industrial Cleaning, Coatings, Adhesives, Sealants & Elastomers, Lubricants & Metalworking
Molybdenum Oxide (CAS 1313-27-5) is a pale-yellow crystalline molybdenum compound, the trioxide form, supplied as a white to gray sublimed powder, that acts as an intermediate in molybdenum refining and is used in catalysts, glass coloring, ceramics, pigments and lubricants.
Typical Properties
| Molecular formula | MoO3 |
|---|---|
| Molecular weight | 143.94 g/mol |
| Form | Sublimed Powder |
| Color | White to gray |
| Odor | Odorless |
| Melting point | 795 °C |
| Boiling point | 1153 °C |
| Density | 4.69 g/cm³ @ Temp: 26 °C |
| Water solubility | 0.5 g/L (20 °C) |
| Flash point | 1155°C subl. |
| GHS signal word | Danger · Acute toxicity, Irritant / harmful, Health hazard |
| HS code | 28257000 |
| 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.
Molybdenum Oxide
Applications
Used in catalysts, glass coloring, and ceramics. In metallurgy, it improves corrosion resistance of steel alloys. Also applied in pigments and lubricants.
Safety & Risks
Low toxicity; avoid inhalation of dust. Handle with gloves and eye protection.
Packaging
Delivered in 25 kg fiber drums or PE-lined paper bags. Store cool, dry, and tightly sealed.