Molybdenum Trioxide
Molybdic Anhydride, MoO3, Molybdenum(VI) Oxide.
- CAS
- 1313-27-5
- EC
- 215-204-7
- Sectors
- Oil, Gas & Energy, Home Care & Industrial Cleaning, Agriculture
Molybdenum Trioxide (CAS 1313-27-5) is an inorganic compound supplied as a white to gray sublimed powder, available in Technical Grade, that acts as a precursor for molybdenum metal and a key component in specialty catalysts, energy storage, and agricultural micronutrients. In the energy sector, it is increasingly used as an electrode material in lithium-ion batteries and as a high-performance catalyst in hydrodesulfurization. Its exceptional purity ensures high efficiency in chemical transformations and electronic applications. The product also serves as a critical micronutrient in the agricultural industry, facilitating nitrogen fixation in legume crops. Its consistent particle size and chemical stability make it ideal for inclusion in specialized fertilizer blends and animal feed additives.
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 Trioxide
Applications
- [Industrial Catalysis]: Used as a primary catalyst in the petroleum industry for removing sulfur from crude oil during refining.
- [Metallurgy]: Acts as an essential alloying agent in the production of high-strength, corrosion-resistant stainless steels.
- [Agriculture]: Provides molybdenum as a trace element to improve plant health and enhance the efficiency of nitrogen-fixing bacteria.
Safety & Risks
Classified as Eye Irrit. 2 and Carc. 2; suspected of causing cancer via inhalation. Wear HEPA Respirators, Safety Goggles, and Chemical-Resistant Gloves during handling.
Packaging
Available in 25 kg Fiber Drums, 50 kg Steel Drums, and 1000 kg Big Bags (FIBC).