Molybdenum Oxide, Dioxo Molybdenum, Molybdic Anhydride, Molybdenum Trioxide, 1313‑27‑5

Molybdenum Oxide, Dioxo Molybdenum, Molybdic Anhydride, Molybdenum Trioxide, 1313‑27‑5

Molybdenum(VI) oxide (CAS 1313‑27‑5), also known as Molybdenum trioxide (MoO₃):

📑 Quick Facts

• CAS No: 1313‑27‑5

• Chemical Formula: MoO₃

• Molecular Weight: 143.94 g/mol

• Density: ~4.69 g/cm³

• Melting Point: ~795 °C (decomposes at higher temperatures)

• Packaging Types: 25 kg bags, drums, IBCs

• HS Code: 2825.90 (metal oxides, molybdenum compounds)

⚙️ Technical Properties

• Appearance: Yellow to green crystalline powder

• Solubility: Slightly soluble in water; soluble in alkalis and acids

• Crystal Structure: Orthorhombic (stable form at room temperature)

• Purity Grades: 99.0–99.99% (industrial vs. high‑purity grades)

🏭 Applications

• Metallurgy: Intermediate for molybdenum metal and alloys (steel hardening, corrosion resistance)

• Catalysis: Used in petroleum refining (hydrodesulfurization catalysts), oxidation reactions

• Pigments: Yellow coloration in ceramics and glass

• Electronics: Thin films for sensors, electrochromic devices

• Chemicals: Precursor for molybdenum salts (molybdates)

🔬 Production Methods / Sources

• Obtained by roasting molybdenum disulfide (MoS₂) concentrates

• Thermal decomposition of ammonium molybdate

• High‑purity MoO₃ produced via controlled crystallization and purification

📊 Sector Suitability Table

🧾 Other Names

• Molybdenum trioxide

• Molybdic anhydride

• Dioxomolybdenum(VI)

• MoO₃

🛡️ Safety & MSDS Summary

• GHS Pictograms: ⚠️ Irritant, 🌍 Environmentally hazardous

• Storage: Dry, sealed packaging, avoid moisture

• PPE: Gloves, goggles, dust mask/respirator

• Waste: Collect as heavy metal oxide waste, dispose via licensed facilities

🌍 Market & Commercial Information

• Purity Grades: 99%, 99.9%, 99.99%

• Packaging: 25 kg bags, 50 kg drums, 1000 kg IBCs

• Producer Regions: China, USA, Europe (major molybdenum refiners)

• Trade Names: Molybdic oxide, MoO₃

🧪 Quality & Analytical Data

• Tests: ICP‑OES (trace metals), XRD (phase), BET (surface area), particle size distribution

• Forms: Powder, nanopowder, thin‑film precursors

🌱 Environmental & Sustainability Aspects

• Waste Management: Classified as heavy metal oxide; requires controlled disposal

• Recycling: Recoverable from molybdenum scrap and spent catalysts

• Carbon Footprint: Moderate; depends on mining and refining of molybdenum ores