Potassium Hexachlororhodate(III) CAS 13845-07-3

High-Purity Potassium Hexachlororhodate(III) from Aure Chemical – Your Trusted Source

Potassium hexachlororhodate(III), K₃[RhCl₆], CAS No. 13845-07-3, is a highly soluble anionic rhodium(III) complex widely utilized as a convenient water-soluble precursor in rhodium chemistry. Supplied by Aure Chemical as dark red to reddish-brown crystalline powder with high rhodium content (approximately 20–22% Rh), this air-stable salt readily dissociates in aqueous or polar media to provide [RhCl₆]³⁻ ions. It serves as an efficient starting material for preparing rhodium precatalysts employed in hydrogenation, hydroformylation, hydrosilylation, and C–H activation reactions, as well as for synthesizing organometallic rhodium complexes and supported rhodium catalysts. Its excellent water solubility and controlled reactivity make it preferred over anhydrous RhCl₃ in aqueous-phase processes and scale-up applications in pharmaceuticals, fine chemicals, and catalysis research. Aure Chemical ensures precise Rh assay, low impurity levels, and secure rhodium sourcing to deliver reproducible performance for industrial and laboratory use worldwide.

Basic Information of Potassium Hexachlororhodate(III)

Aure Chemical provides Potassium Hexachlororhodate(III) as a premium-grade anionic Rh(III) precursor with verified rhodium content and exceptional purity for catalytic and synthetic applications.

CAS No.	13845-07-3
EC No.	237-569-5
Chemical Formula	K₃RhCl₆
Molecular Weight	484.46 g/mol
Appearance	Dark red to reddish-brown crystalline powder
Odor	Odorless
Melting point	Decomposes before melting (>300 °C)
Boiling point	Not applicable (decomposes)
Density	approx. 2.9–3.1 g/cm³
Solubility	Highly soluble in water (>500 g/L); soluble in methanol, ethanol
Nature (hazards)	Causes severe skin burns and eye damage, may cause allergic skin reaction, harmful if swallowed, toxic to aquatic life
RIDADR	UN 3288, Toxic solid, inorganic, n.o.s. (Potassium hexachlororhodate(III)), Class 6.1, Packing Group III
Chemical Structure

Aure Chemical offers customizable options including purity grades (99%+ Rh basis), controlled hydration, and moisture-protected packaging to suit your catalyst synthesis, aqueous-phase process, or research requirements.

Primary Applications of Potassium Hexachlororhodate(III)

Potassium Hexachlororhodate(III) functions as a water-soluble Rh(III) precursor, enabling efficient catalyst generation and rhodium incorporation in aqueous or polar-phase processes.

1. Wilkinson's Catalyst Preparation
   Serves as a convenient rhodium source for synthesizing Wilkinson's catalyst [RhCl(PPh₃)₃] in aqueous or alcoholic media, the benchmark for selective homogeneous hydrogenation in pharmaceutical production.

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

3. Hydroformylation & Carbonylation Catalysis
   Provides Rh(III) for preparing rhodium-based hydroformylation catalysts, enabling efficient conversion of alkenes to aldehydes in oxo-alcohol and specialty chemical manufacturing.

4. Organometallic Rhodium Complex Synthesis
   Acts as starting material for preparing Rh(III) and reduced Rh(I) complexes with phosphines, amines, or other ligands in homogeneous catalysis and materials research.

5. C–H Activation & Functionalization
   Facilitates Rh-catalyzed direct C–H arylation and borylation in aqueous media, supporting greener synthetic routes to functionalized molecules.

6. Aqueous-Phase & Green Catalysis
   Enables rhodium-catalyzed reactions in water, reducing organic solvent use and enabling environmentally friendlier processes in fine chemical and pharmaceutical production.

Why Choose Aure Chemical for Your Potassium Hexachlororhodate(III) Supply?

Select Aure Chemical as your reliable partner for Potassium Hexachlororhodate(III), delivering superior solubility, technical expertise, and stable rhodium supply for your Rh-based applications.

• Precise Rhodium Content & Purity
  Advanced quality assurance ensures accurate Rh assay, low residual impurities, and batch consistency for dependable catalyst or process performance.

• Secure Precious Metal Sourcing
  Transparent, responsible rhodium procurement with inventory management to ensure supply reliability and competitive pricing.

• Technical Process Support
  Dedicated specialists provide advice on dissolution, reduction protocols, catalyst activation, and aqueous-phase optimization for enhanced 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 goals and sustainable chemistry principles.

Hazards Classification

• GHS Classification: Skin Corrosion/Irritation (Category 1B); Serious Eye Damage (Category 1); Skin Sensitization (Category 1); Acute Toxicity, Oral (Category 4); Aquatic Chronic (Category 2)

• Hazard Statements: H314: Causes severe skin burns and eye damage; H317: May cause an allergic skin reaction; H302: Harmful if swallowed; H411: Toxic to aquatic life with long lasting effects

• UN Number: UN 3288

• Hazard Class: 6.1 (Toxic substances)

• Packing Group: III