Rhodium Carbonyl Chloride Dimer CAS 14523-22-9

High-Purity Rhodium Carbonyl Chloride Dimer from Aure Chemical – Your Trusted Source

Rhodium carbonyl chloride dimer, [Rh(CO)₂Cl]₂, CAS No. 14523-22-9, is a fundamental rhodium(I) carbonyl complex and one of the most important precursors in industrial rhodium catalysis. Supplied by Aure Chemical as bright red to orange-red crystalline powder with high rhodium content (approximately 47–48% Rh), this air-stable, volatile dimer features bridging chlorides and terminal carbonyl ligands. It serves as the primary starting material for preparing highly active rhodium catalysts used in hydroformylation (oxo process), carbonylation, hydrogenation, and hydrosilylation reactions essential to bulk chemical production, pharmaceutical intermediates, and fine chemicals. Its facile bridge cleavage and ligand substitution behavior enable rapid formation of mononuclear Rh(I) species in the presence of phosphines or other ligands, making it indispensable in both homogeneous catalysis and catalyst development. Aure Chemical ensures rigorous purity control, low residual impurities, and secure rhodium sourcing to deliver batch consistency and optimal catalytic performance in research and large-scale industrial applications worldwide.

Basic Information of Rhodium Carbonyl Chloride Dimer

Aure Chemical supplies Rhodium Carbonyl Chloride Dimer as a premium Rh(I) carbonyl precursor with verified rhodium content and exceptional purity for hydroformylation and carbonylation applications.

CAS No.	14523-22-9
EC No.	238-541-3
Chemical Formula	[Rh(CO)₂Cl]₂
Molecular Weight	388.76 g/mol
Appearance	Bright red to orange-red crystalline powder
Odor	Odorless (CO odor may develop upon decomposition)
Melting point	Decomposes before melting (~200 °C)
Boiling point	Not applicable (decomposes)
Density	approx. 2.4 g/cm³
Solubility	Insoluble in water; soluble in benzene, toluene, dichloromethane, chloroform
Nature (hazards)	Harmful if swallowed, may cause long lasting harmful effects to aquatic life, CO-releasing upon decomposition, air-sensitive in solution
RIDADR	Not regulated (not subject to transport regulations as hazardous material in many classifications)
Chemical Structure

Aure Chemical offers customizable options including purity grades (99%+ Rh basis), air-sensitive packaging under inert atmosphere, and tailored batch sizes to preserve stability for your catalysis or scale-up needs.

Primary Applications of Rhodium Carbonyl Chloride Dimer

[Rh(CO)₂Cl]₂ is a foundational Rh(I) precursor, readily converted to active mononuclear rhodium species for key industrial and synthetic catalytic processes.

1. Hydroformylation (Oxo Process) Catalysis
   Serves as the primary rhodium source for preparing highly active hydroformylation catalysts, enabling efficient conversion of alkenes to aldehydes in large-scale oxo-alcohol production for plasticizers and detergents.

2. Carbonylation & Acylation Reactions
   Used to generate rhodium carbonyl catalysts for carbonylation of alcohols to esters/acids and related acylation processes in fine chemical and pharmaceutical intermediate synthesis.

3. Organometallic Complex Synthesis
   Acts as starting material for preparing substituted rhodium carbonyl phosphine complexes (e.g., Wilkinson's catalyst analogs) and other Rh(I) species in coordination chemistry research.

4. Supported Rhodium Catalyst Preparation
   Employed in impregnation or thermal decomposition to deposit Rh on carbon, alumina, or silica supports for heterogeneous hydroformylation and hydrogenation catalysis.

5. Pharmaceutical & Fine Chemical Synthesis
   Applied in Rh-catalyzed carbonylation and reduction steps for key intermediates in API manufacturing, offering high selectivity and functional group compatibility.

6. Catalyst Development & Mechanistic Studies
   Serves as a standard Rh(I) source for ligand screening, in-situ catalyst generation, and mechanistic investigations in academic and industrial catalysis R&D.

Why Choose Aure Chemical for Your Rhodium Carbonyl Chloride Dimer Supply?

Partner with Aure Chemical for Rhodium Carbonyl Chloride Dimer to benefit from premium carbonyl reactivity, technical expertise, and secure rhodium supply for your catalytic applications.

• High Rhodium Content Consistency
  Rigorous analytical controls guarantee accurate Rh assay, minimal impurities, and batch-to-batch reproducibility for dependable catalytic performance.

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

• Technical Catalysis Support
  Dedicated specialists offer guidance on ligand substitution, catalyst activation, hydroformylation optimization, and scale-up for maximum efficiency.

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

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

Hazards Classification

• GHS Classification: Acute Toxicity, Oral (Category 4); Aquatic Chronic (Category 4)

• Hazard Statements: H302: Harmful if swallowed; 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