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931578

Sigma-Aldrich

Ruthenium(III) chloride hydrate

≥99.9% trace metals basis

Synonym(s):

Ruthenium trichloride, Trichlororuthenium hydrate

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About This Item

Linear Formula:
RuCl3 · xH2O
CAS Number:
Molecular Weight:
207.43 (anhydrous basis)
MDL number:
UNSPSC Code:
12352302
NACRES:
NA.21

Quality Level

Assay

≥99.9% trace metals basis

form

powder

impurities

≤1000.0 ppm (trace metals analysis)

solubility

acetone: soluble ((lit.))
ethanol: soluble
water: soluble

density

3.11 g/cm3

SMILES string

O.Cl[Ru](Cl)Cl

InChI

1S/3ClH.H2O.Ru/h3*1H;1H2;/q;;;;+3/p-3

InChI key

BIXNGBXQRRXPLM-UHFFFAOYSA-K

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General description

Ruthenium chloride hydrate is a dark brown or black solid often used as a powder. The hydrate is hygroscopic and is soluble in water, ethanol, acetone, and a wide range of polar organic solvents. The anhydrous form is insoluble.
Industrially, ruthenium trichloride hydrate is produced by dissolving ruthenium oxides in hydrochloric acid. The hydrated salt is obtained by recrystallization.

Application

Ruthenium chloride is most used as a precursor for the synthesis of ruthenium complexes. Our RuCl3·H2O with 99.9% trace metals purity is well-suited for applications in materials science. One common application of ruthenium trichloride hydrate is in the synthesis of ruthenium nanoparticles, which are used as catalysts or composited with other materials and used as co-catalysts for both oxygen and hydrogen evolution reactions. Researchers have used our ruthenium chloride hydrate to produce high-quality, catalytically active ruthenium nanoparticles and ruthenium oxide nanoparticles.
Another common application of ruthenium chloride hydrate is as a precursor for single-atom catalysts. For example, scientists have used ruthenium chloride hydrate for the synthesis of ruthenium single-atom-doped ZrO2 particles to catalyze nitrogen fixation and for the synthesis of ruthenium single-atom-doped MXenes to catalyze hydrogen evolution. A third common application of ruthenium chloride hydrate is in the synthesis of metal alloys, like PtRuIr, or PtRuFe, which are investigated for electrocatalysis, usually the oxidation of simple organics like methanol or formic acid.
For use in all these applications, also consider our higher-purity ruthenium chloride hydrate, 463779, with trace metals purity greater than 99.98%, which offers the best reproducibility and purity.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synthesis and Activities of Rutile IrO2 and RuO2 Nanoparticles for Oxygen Evolution in Acid and Alkaline Solutions
Lee, Y., Suntivich, J., et al.
The Journal of Physical Chemistry Letters, 3, 399?404-399?404 (2012)
Heteroatom-Mediated Interactions between Ruthenium Single Atoms and an MXene Support for Efficient Hydrogen Evolution
Ramalingam, V., et al.
Advanced Materials, 31, e1903841-e1903841 (2019)
Nitrogen Fixation by Ru Single-Atom Electrocatalytic Reduction
Tao, H., Choi, C., et al.
Chem, 5, 204-214 (2019)
Vinoth Ramalingam et al.
Advanced materials (Deerfield Beach, Fla.), 31(48), e1903841-e1903841 (2019-10-18)
A titanium carbide (Ti3 C2 Tx ) MXene is employed as an efficient solid support to host a nitrogen (N) and sulfur (S) coordinated ruthenium single atom (RuSA ) catalyst, which displays superior activity toward the hydrogen evolution reaction (HER).
Javeed Mahmood et al.
Nature nanotechnology, 12(5), 441-446 (2017-02-14)
The hydrogen evolution reaction (HER) is a crucial step in electrochemical water splitting and demands an efficient, durable and cheap catalyst if it is to succeed in real applications. For an energy-efficient HER, a catalyst must be able to trigger

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