Rhodium(III) 2-Ethylhexanoate

Basic Information of Rhodium(III) 2-Ethylhexanoate

CAS No.	25470-96-6
EC No.	247-011-9
Chemical Formula	Rh₂(O₂CC₇H₁₅)₆
Molecular Weight	approx. 1076 g/mol
Appearance	Dark green to brownish viscous liquid or waxy solid
Odor	Slight carboxylic
Melting point	approx. 40–60 °C (softens)
Boiling point	Decomposes before boiling
Density	approx. 1.1–1.3 g/cm³
Solubility	Highly soluble in hydrocarbons, toluene, hexane, alcohols; insoluble in water
Nature (hazards)	May cause skin and eye irritation, harmful if swallowed or inhaled, toxic to aquatic life with long lasting effects
RIDADR	UN 3077, Environmentally hazardous substance, liquid, n.o.s. (Rhodium(III) 2-ethylhexanoate), Class 9, Packing Group III
Chemical Structure

Primary Applications of Rhodium(III) 2-Ethylhexanoate

Rhodium(III) 2-Ethylhexanoate serves as a highly soluble Rh precursor, enabling efficient rhodium incorporation in non-aqueous catalytic and materials processes.

1. Supported Rhodium Catalyst Preparation
   Used in organic-phase impregnation of carbon, alumina, or silica supports to create high-dispersion Rh catalysts for hydrogenation, hydroformylation, and automotive emission control.

2. Homogeneous Hydrogenation Catalysis
   Acts as a precursor for Rh species in selective hydrogenation of alkenes, alkynes, and carbonyls in hydrocarbon solvents, offering excellent activity in fine chemical synthesis.

3. Thin-Film & Coating Deposition
   Serves as a solution-based Rh source for spin-coating, dip-coating, or ink formulations to produce rhodium electrodes or catalytic films in microelectronics and sensors.

4. Organometallic Rhodium Complex Synthesis
   Enables preparation of mixed-ligand Rh complexes in non-polar media for mechanistic studies and functional organometallics in catalysis research.

5. Electrocatalyst Development for Energy Applications
   Facilitates synthesis of Rh-based electrocatalysts for oxygen reduction reaction (ORR) and hydrogen evolution in fuel cells and electrolyzers.

6. Advanced Materials & Nanotechnology
   Supports controlled reduction to generate rhodium nanostructures or functional coatings requiring high purity and controlled Rh loading.

• Accurate Rhodium Content Control
  Precise analytical verification ensures uniform Rh content, low impurities, and batch reproducibility for reliable precursor performance.

• Secure Precious Metal Sourcing
  Transparent, responsible rhodium procurement with inventory buffering to provide supply stability and competitive pricing.

• Technical Application Support
  Experienced specialists offer guidance on dissolution, reduction protocols, catalyst activation, and process optimization tailored to your applications.

• Full Regulatory Compliance
  Comprehensive COA, REACH, RoHS, and detailed SDS documentation to facilitate global operations and audits.

• Sustainability & Recycling Commitment
  Ethical sourcing practices and rhodium recovery/recycling programs aligned with ESG objectives and circular economy principles.

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: UN 3077

• Hazard Class: 9 (Miscellaneous dangerous substances and articles)

• Packing Group: III