Potassium Ruthenate CAS 31111-21-4

High-Purity Potassium Ruthenate from Aure Chemical – Your Trusted Source

Potassium ruthenate, K₂RuO₄, CAS No. 31111-21-4, is a powerful Ru(VI) oxidant precursor widely used in selective organic transformations and ruthenium chemistry. Supplied by Aure Chemical as green to dark green crystalline solid or stabilized alkaline aqueous solutions with controlled ruthenium content (typically 30–35% Ru in solution form), this compound serves as an efficient source of ruthenate(VI) species for dihydroxylation of alkenes, oxidation of alcohols to carbonyls, and cleavage of 1,2-diols to carbonyl compounds under mild conditions. It offers superior selectivity compared to osmium-based oxidants and is particularly valuable in carbohydrate chemistry, natural product synthesis, and pharmaceutical intermediate preparation. Potassium ruthenate can also be used catalytically with co-oxidants or as a precursor for preparing other ruthenium catalysts. Aure Chemical provides stabilized formulations to minimize decomposition, low impurity levels, and secure ruthenium sourcing to ensure safe handling, batch consistency, and optimal oxidative performance in laboratory and industrial applications worldwide.

Basic Information of Potassium Ruthenate

Aure Chemical supplies Potassium Ruthenate as a premium Ru(VI) oxidant precursor with verified ruthenium content and controlled stability for selective oxidation applications.

CAS No.	31111-21-4
EC No.	250-476-9
Chemical Formula	K₂RuO₄
Molecular Weight	243.18 g/mol
Appearance	Green to dark green crystalline solid or green alkaline solution
Odor	Odorless
Melting point	Decomposes before melting (>300 °C)
Boiling point	Not applicable (decomposes)
Density	approx. 3.0–3.2 g/cm³ (solid); solution density varies
Solubility	Soluble in water (forms alkaline solutions); insoluble in most organic solvents
Nature (hazards)	Strong oxidizer, causes severe skin burns and eye damage, harmful if swallowed or inhaled, toxic to aquatic life, may cause fire or explosion
RIDADR	UN 3139, Oxidizing solid, n.o.s. (Potassium ruthenate), Class 5.1, Packing Group I (solid); UN 3085 for solutions
Chemical Structure

Aure Chemical offers customizable options including solid crystals, stabilized alkaline solutions (e.g., 0.5–5% Ru), concentration specification, and specialized packaging for safe handling and storage.

Primary Applications of Potassium Ruthenate

Potassium Ruthenate is a powerful Ru(VI) oxidant, delivering high selectivity and functional group compatibility in key oxidative transformations.

1. Syn-Dihydroxylation of Alkenes
    Catalyzes stereospecific cis-dihydroxylation of olefins under mild conditions, providing efficient access to 1,2-diols in carbohydrate, steroid, and natural product synthesis.

2. Oxidative Cleavage of 1,2-Diols
    Selectively cleaves vicinal diols to carbonyl compounds (aldehydes or ketones), offering a mild alternative to periodate oxidation in complex molecule degradation and synthesis.

3. Alcohol Oxidation to Carbonyls
    Enables selective oxidation of primary alcohols to aldehydes and secondary alcohols to ketones, often catalytically with co-oxidants, in fine chemical and pharmaceutical intermediate preparation.

4. Precursor for Ruthenium Catalysts
    Serves as a stable Ru(VI) source for preparing ruthenium metathesis, hydrogenation, or oxidation catalysts through reduction or ligand exchange in advanced synthetic applications.

5. Natural Product & Pharmaceutical Synthesis
    Applied in selective oxidation steps and structural modifications of complex molecules, offering excellent chemoselectivity and mild reaction conditions.

6. Analytical & Structural Chemistry
    Used as a selective oxidant in analytical procedures and as a staining agent in electron microscopy for biological samples requiring high-resolution contrast.

Why Choose Aure Chemical for Your Potassium Ruthenate Supply?

Partner with Aure Chemical for Potassium Ruthenate to access premium oxidative selectivity, safe stabilized formulations, and secure ruthenium supply for your synthetic needs.

• Stabilized & High-Quality Formulations
   Carefully prepared solid or stabilized alkaline solutions minimize decomposition and hazards while maintaining full oxidative potency and consistency.

• Precise Ruthenium Content Control
   Accurate assay and low impurity profiles guarantee consistent Ru concentration and reproducible performance across batches.

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

• Technical Application Support
   Dedicated specialists offer guidance on safe handling, co-oxidant selection, reaction optimization, and scale-up for maximum selectivity and yield.

• Regulatory & Sustainability Compliance
   Full COA, REACH, RoHS, SDS documentation and ruthenium recycling programs aligned with global standards and ESG commitments.

Hazards Classification

• GHS Classification: Oxidizing Solids (Category 1); Skin Corrosion (Category 1A); Serious Eye Damage (Category 1); Acute Toxicity, Oral (Category 3); Acute Toxicity, Inhalation (Category 3); Aquatic Acute (Category 1); Aquatic Chronic (Category 1)

• Hazard Statements: H271: May cause fire or explosion; strong oxidizer; H314: Causes severe skin burns and eye damage; H301 + H331: Toxic if swallowed or if inhaled; H410: Very toxic to aquatic life with long lasting effects

• UN Number: UN 3139

• Hazard Class: 5.1 (Oxidizing substances)

• Packing Group: I