Ruthenium(IV) Oxide

Basic Information of Ruthenium(IV) Oxide

CAS No.	12036-10-1
EC No.	234-829-6
Chemical Formula	RuO₂
Molecular Weight	133.07 g/mol
Appearance	Dark blue to black powder
Odor	Odorless
Melting point	Decomposes >1200 °C
Boiling point	Not applicable (decomposes)
Density	approx. 6.97 g/cm³
Solubility	Insoluble in water and most organic solvents; soluble in fused alkalis or hot concentrated acids
Nature (hazards)	May cause respiratory irritation, skin and eye irritation, harmful if inhaled as dust, toxic to aquatic life
RIDADR	Not regulated (non-hazardous for transport under standard classifications; consult SDS for specific handling)
Chemical Structure

Primary Applications of Ruthenium(IV) Oxide

Ruthenium(IV) Oxide excels as a stable, high-performance heterogeneous catalyst and electrode material in oxidation and energy-related technologies.

1. Selective Oxidation of Alcohols & Hydrocarbons
   Catalyzes efficient oxidation of primary alcohols to aldehydes/carboxylic acids and hydrocarbons using air or oxygen, delivering high selectivity in fine chemical and fragrance production.

2. Dimensionally Stable Anodes (DSA) in Chlor-Alkali
   Serves as the active coating on titanium substrates for chlorine production, offering exceptional corrosion resistance, low overpotential, and long service life in industrial electrolysis.

3. Electrocatalysis for Water Splitting & Fuel Cells
   Functions as an efficient oxygen evolution reaction (OER) catalyst in PEM and alkaline water electrolyzers, and as a cathode material in direct methanol fuel cells with superior stability.

4. Electrochemical Capacitors & Supercapacitors
   Provides pseudocapacitive behavior with high specific capacitance and cycling stability in advanced energy storage devices and hybrid capacitor systems.

5. Supported Catalyst Preparation
   Acts as a Ru source for generating RuO₂ or reduced Ru on various supports (carbon, alumina, TiO₂) for tailored oxidation and hydrogenation catalysis in fine chemicals.

6. Advanced Materials & Nanotechnology
   Enables synthesis of RuO₂ nanoparticles, thin films, or nanostructures for sensors, electrochromic devices, and functional coatings requiring high conductivity and stability.

• High Ruthenium Content & Activity
  Precise analytical control ensures consistent Ru 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, electrochemical activity) guarantees low variation and predictable performance during scale-up and production.

• Secure Ruthenium 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