High-Purity Rhodium(IV) Oxide from Aure Chemical – Your Trusted Source
Rhodium(IV) oxide, RhO₂, CAS No. 12036-35-0, is a highly stable and active heterogeneous rhodium catalyst valued for its exceptional performance in oxidation and reduction processes. Supplied by Aure Chemical as a dark blue to black powder with high rhodium content (approximately 75–76% Rh), this thermally robust oxide exhibits outstanding activity in selective oxidation of alcohols, aldehydes, and hydrocarbons using molecular oxygen or air, as well as in hydrogenation and hydrogenolysis when reduced in situ. Its resistance to poisoning, high surface stability, and conductivity make it essential for industrial oxidation catalysis, automotive emission control, and electrocatalytic applications in energy conversion. RhO₂ is also used as a precursor for supported rhodium catalysts and in advanced materials research. Aure Chemical provides consistent particle size, high surface area options, and secure rhodium sourcing to ensure batch reproducibility and optimal performance in demanding catalytic and electrochemical systems worldwide.
Basic Information of Rhodium(IV) Oxide
Aure Chemical supplies Rhodium(IV) Oxide as a premium Rh(IV) heterogeneous catalyst with verified high rhodium content and exceptional purity for oxidation and reduction applications.
| CAS No. | 12036-35-0 |
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| EC No. | 234-846-9 |
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| Chemical Formula | RhO₂ |
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| Molecular Weight | 134.90 g/mol |
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| Appearance | Dark blue to black powder |
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| Odor | Odorless |
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| Melting point | Decomposes >1000 °C |
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| Boiling point | Not applicable (decomposes) |
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| Density | approx. 7.0 g/cm³ |
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| Solubility | Insoluble in water and most organic solvents; soluble in hot concentrated acids |
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| Nature (hazards) | May cause respiratory irritation, skin and eye irritation, harmful if inhaled as dust, toxic to aquatic life |
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| RIDADR | Not regulated (non-hazardous for transport under standard classifications; consult SDS for specific handling) |
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| Chemical Structure |  |
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Aure Chemical offers customizable options including purity grades, particle size distribution, surface area optimization, and supported forms (e.g., RhO₂ on alumina or carbon) to match your oxidation, electrocatalytic, or material requirements.
Primary Applications of Rhodium(IV) Oxide
Rhodium(IV) Oxide excels as a stable, high-performance heterogeneous catalyst and electrode material in oxidation and energy-related technologies.
Selective Oxidation Catalysis
Catalyzes efficient oxidation of alcohols to aldehydes/carboxylic acids and hydrocarbons using air or oxygen, delivering high selectivity in fine chemical and fragrance production.
Automotive Emission Control
Used in three-way catalysts for oxidation of CO and hydrocarbons, providing excellent thermal stability and poison resistance in high-temperature exhaust environments.
Electrocatalysis for Water Splitting
Functions as an efficient oxygen evolution reaction (OER) catalyst in alkaline and acid media, supporting green hydrogen production in electrolyzers.
Supported Catalyst Preparation
Acts as a Rh source for generating RhO₂ or reduced Rh on various supports for tailored oxidation, hydrogenation, and reforming catalysis in industrial processes.
Electrochemical Capacitors & Sensors
Provides pseudocapacitive behavior with high specific capacitance and cycling stability in supercapacitors and chemical sensors.
Advanced Materials Research
Enables synthesis of RuO₂/RhO₂ nanoparticles, thin films, or nanostructures for photoelectrocatalysis, electrochromics, and functional coatings.
Why Choose Aure Chemical for Your Rhodium(IV) Oxide Supply?
Partner with Aure Chemical for Rhodium(IV) Oxide to benefit from superior stability, customization flexibility, and secure precious metal supply tailored to your catalytic and electrochemical needs.
High Rhodium Content & Activity
Precise analytical control ensures consistent Rh content, optimal crystallinity, and high active surface area for maximum catalytic and electrochemical performance.
Custom Material Specifications
Tailored purity, particle morphology, surface area, and supported variants to perfectly align with your oxidation, electrolysis, or energy storage application.
Consistent Batch-to-Batch Reproducibility
Rigorous testing (ICP, XRD, BET, activity assays) guarantees low variation and predictable performance during scale-up and production.
Secure Rhodium Supply Chain
Responsible sourcing, strategic inventory management, and transparent pricing mitigate volatility and ensure long-term availability.
Technical & Regulatory Support
Expert team provides guidance on catalyst activation, electrode coating, performance optimization, and full documentation (COA, REACH, SDS) for seamless integration.
Hazards Classification
GHS Classification: Skin Irritation (Category 2); Eye Irritation (Category 2A); Specific Target Organ Toxicity, Single Exposure (respiratory) (Category 3); Aquatic Chronic (Category 3)
Hazard Statements: H315: Causes skin irritation; H319: Causes serious eye irritation; H335: May cause respiratory irritation; H413: May cause long lasting harmful effects to aquatic life
UN Number: Not regulated
Hazard Class: Not classified as hazardous for transport
Packing Group: Not applicable
GHS07: Exclamation mark (irritant, respiratory)
GHS09: Environment (aquatic hazard)
