Iridium(III) Acetate

Basic Information of Iridium(III) Acetate

CAS No.	52705-52-9
EC No.	258-048-9
Chemical Formula	Ir(CH₃COO)₃
Molecular Weight	398.39 g/mol (anhydrous basis)
Appearance	Dark green to brownish powder or hydrated solid
Odor	Slight acetic acid-like
Melting point	Decomposes before melting (>200 °C)
Boiling point	Not applicable (decomposes)
Density	approx. 2.2–2.5 g/cm³
Solubility	Soluble in water, alcohols, acetic acid; moderately soluble in acetone
Nature (hazards)	Causes skin and eye irritation, may cause allergic skin reaction, harmful if swallowed or inhaled, toxic to aquatic life
RIDADR	UN 3077, Environmentally hazardous substance, solid, n.o.s. (Iridium(III) acetate), Class 9, Packing Group III
Chemical Structure

Primary Applications of Iridium(III) Acetate

Iridium(III) Acetate serves as a reactive Ir(III) precursor, readily convertible to active iridium species for catalytic and materials processes.

1. Homogeneous Hydrogenation Catalysis
   Acts as a precursor for Ir catalysts in selective hydrogenation of alkenes, alkynes, and carbonyls, offering high activity in pharmaceutical intermediate synthesis.

2. Supported Iridium Catalyst Preparation
   Used in impregnation or precipitation to deposit Ir on carbon, alumina, silica, or oxide supports, yielding efficient hydrogenation and reforming catalysts for fine chemicals.

3. C–H Activation & Functionalization
   Facilitates Ir-catalyzed direct C–H borylation, silylation, and arylation, providing atom-economical routes to functionalized molecules in drug discovery.

4. Thin-Film & Coating Deposition
   Serves as a solution-based Ir source for depositing iridium or iridium oxide films via spin-coating or electrodeposition in microelectronics and sensors.

5. Organometallic Complex Synthesis
   Enables preparation of mixed-ligand Ir complexes for mechanistic studies, luminescent materials, and functional organometallics in academic and industrial R&D.

6. Electrocatalysis & Energy Applications
   Supports synthesis of Ir-based electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution in water splitting and fuel cell technologies.

• Consistent Iridium Content & Purity
  Precise analytical verification ensures uniform Ir content, low residual impurities, and batch reproducibility for reliable precursor performance.

• Secure Precious Metal Sourcing
  Transparent, responsible iridium 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 iridium 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