Overview
High crystallinity vanadium oxide (V₂O₅) is a chemically stable, inorganic compound primarily used in industrial applications due to its catalytic and electrochemical properties. It is produced through calcination or hydrothermal methods to achieve high purity and defined crystal structures. As a transition metal oxide, it exhibits unique redox behavior, making it valuable in energy storage and chemical processes. Its high crystallinity ensures consistent performance in demanding environments, such as sulfuric acid production or lithium-ion batteries.
Physical and Chemical Properties
Vanadium oxide appears as a yellow-orange crystalline powder with a density of 3.35 g/cm³. It melts at 690°C and decomposes at 1750°C, demonstrating exceptional thermal stability. The compound is slightly soluble in water but dissolves readily in acidic or alkaline solutions. Its semiconductor properties and layered crystal structure facilitate electron transfer, which is critical for catalytic reactions. The high crystallinity minimizes defects, enhancing conductivity and reactivity in applications like oxidative dehydrogenation.
Main Applications
V₂O₅ is widely used as a catalyst in sulfuric acid production and petroleum refining, where it accelerates SO₂ oxidation. In energy storage, it serves as a cathode material in lithium-ion and flow batteries due to its multi-electron redox capability. Additional uses include chemical synthesis (e.g., maleic anhydride production) and ceramics, where it acts as a colorant or flux. Its photocatalytic properties are also explored for environmental remediation, such as pollutant degradation.
Safety and Storage
Vanadium oxide is toxic upon inhalation or ingestion, causing respiratory and gastrointestinal irritation. Workers must wear NIOSH-approved respirators, gloves, and eye protection. Avoid skin contact and maintain airborne levels below OSHA’s PEL (0.05 mg/m³ for V₂O₅ dust). Store in sealed containers away from moisture, reducing agents, and organic materials. In case of spills, use HEPA-filter vacuums or wet methods to prevent dust dispersion. Dispose of waste per local hazardous material regulations.
B2B Procurement Guide
When sourcing high crystallinity V₂O₅, prioritize suppliers with ISO certification and batch-specific COAs (Certificates of Analysis). Key specifications include purity (≥99%), crystallite size (XRD-verified), and trace metal content (e.g., Fe, Na <100 ppm). Bulk pricing is volume-dependent, with discounts for orders exceeding 1 metric ton. Opt for pelletized forms to reduce dust hazards during handling. For battery-grade material, request electrochemical performance data, such as cycling stability and capacity retention.
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