Rhodium(III) Acetylacetonate

Basic Information of Rhodium(III) Acetylacetonate

CAS No.	14284-92-5
EC No.	238-192-0
Chemical Formula	Rh(C₅H₇O₂)₃
Molecular Weight	398.20 g/mol
Appearance	Dark red to maroon crystalline powder
Odor	Odorless to slight characteristic
Melting point	260 °C (decomposes)
Boiling point	Sublimes ~220–240 °C under vacuum
Density	approx. 1.6–1.8 g/cm³
Solubility	Insoluble in water; soluble in chloroform, dichloromethane, toluene, acetone
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, solid, n.o.s. (Rhodium(III) acetylacetonate), Class 9, Packing Group III
Chemical Structure

Primary Applications of Rhodium(III) Acetylacetonate

Rhodium(III) Acetylacetonate excels as a volatile, halide-free Rh precursor for high-purity thin-film deposition and catalyst preparation in advanced technology sectors.

1. Chemical Vapor Deposition (CVD) & Atomic Layer Deposition (ALD)
   Serves as a standard precursor for depositing conformal, high-purity rhodium thin films, electrodes, or seed layers in microelectronics, DRAM capacitors, and interconnects.

2. Supported Rhodium Catalyst Preparation
   Used in solution impregnation or gas-phase methods to produce highly dispersed Rh on carbon, alumina, or oxide supports for hydrogenation, hydroformylation, and reforming catalysis.

3. Rhodium Nanoparticle & Nanostructure Synthesis
   Enables controlled thermal or chemical reduction to generate Rh nanoparticles, nanowires, or clusters for electrocatalysis, fuel cells, and biomedical nanotechnology.

4. Organometallic Complex & Materials Research
   Acts as a Rh(III) source for synthesizing mixed-ligand complexes, luminescent Rh compounds, or functional organometallics in academic and industrial R&D.

5. Electrocatalyst Development for Energy Applications
   Facilitates preparation of Rh-based catalysts for oxygen reduction reaction (ORR), hydrogen evolution, and alcohol oxidation in electrolyzers and fuel cells.

6. Thin-Film Electrodes & Sensors
   Supports deposition of Rh microelectrodes, catalytic surfaces, or conductive layers in chemical sensors, biosensors, and electrochemical devices.

• High Purity & Volatile Consistency
  Rigorous quality control ensures uniform Rh content, low impurities, and reproducible sublimation/decomposition behavior for reliable thin-film deposition.

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

• Technical Deposition Expertise
  Dedicated specialists offer guidance on precursor handling, CVD/ALD parameters, reduction protocols, and process optimization.

• Comprehensive Regulatory Compliance
  Full COA, REACH, RoHS, and detailed SDS documentation to facilitate integration into global electronics and catalysis operations.

• Sustainability Focus
  Ethical sourcing practices and rhodium recovery/recycling programs aligned with ESG requirements and sustainable materials development.

Hazards Classification

• GHS Classification: Acute Toxicity, Oral (Category 4); Skin Irritation (Category 2); Eye Irritation (Category 2A); Specific Target Organ Toxicity, Single Exposure (respiratory) (Category 3); Aquatic Chronic (Category 2)

• Hazard Statements: H302: Harmful if swallowed; H315: Causes skin irritation; H319: Causes serious eye irritation; H335: May cause respiratory irritation; H411: Toxic to aquatic life with long lasting effects

• UN Number: UN 3077

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

• Packing Group: III