Ruthenium(III) chloride hydrate Chemical Properties

Melting point:

>300°C

Density 

3.11 g/cm3

storage temp. 

Store at +5°C to +30°C.

solubility 

Water (Slightly)

form 

Powder

color 

Dark brown to black

PH

<2 (H2O, 20℃)Aqueous solution

Water Solubility 

soluble

Sensitive 

Hygroscopic

Merck 

14,8302

Stability:

hygroscopic

CAS DataBase Reference

14898-67-0(CAS DataBase Reference)

Safety Information

Hazard Codes 

C

Risk Statements 

34-52/53-22

Safety Statements 

26-36/37/39-45-61

RIDADR 

UN 3260 8/PG 2

WGK Germany 

2

RTECS 

VM2650000

TSCA 

Yes

HS Code 

2843 90 90

HazardClass 

8

PackingGroup 

III

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Ruthenium(III) chloride hydrate Usage And Synthesis

Chemical Properties

Ruthenium(III) chloride hydrate appears as dark brown to black powder. It cannot dissolve in cold water or carbon disulfide, but it can decompose in hot water. It is also insoluble in ethanol, but it can dissolve in hydrochloric acid. When combined with potassium iodide solution, it forms a precipitate of iodide. When reacted with hydrogen sulfide, it forms a precipitate of ruthenium trisulfide. It can react with ammonia, potassium cyanide, and potassium nitrite to form corresponding ammonia, cyanide, and nitroso complexes. It can also be reduced to blue divalent ruthenium ions by sodium amalgam or titanium trichloride.

Uses

Oxidation.Ruthenium(III) chloride hydrate is used as a catalyst for alkyne functionalization and oxidation reactions. It is used as key raw materials for the preparation of various ruthenium-based catalysts, including Grubbs? catalysts. It is utilized in the preparation of nanoparticulate ruthenium-aluminum oxyhydroxide catalyst, which is efficient for dehydrogenation of alcohols to the corresponding aldehydes. It is also involved in the synthesis of 2-ethyl-3-methylquinolines from primary aromatic amines and triallylamine.

Application

Ruthenium hydrated oxide, prepared from RhCl3 when deposited on titania nanotubes can  be used as a catalyt system for selective oxidation of alcohols by oxygen.

Preparation

Ruthenium(III) chloride hydrate can be synthesized by directly combining ruthenium metal and chlorine at high temperature. Alternatively, adding hydrochloric acid to ruthenium hydroxide and subsequently evaporating, concentrating, and crystallizing the mixture can also produce the desired compound.

General Description

Ruthenium(III) chloride hydrate, also called Ruthenium(III) trichloride hydrate, is widely used as a starting material in Ruthenium chemistry. It is used in the determination of sulfites, the manufacture of chlororuthenates, and as an electrode coating material.

Purification Methods

Dissolve the salt in H2O, filter and concentrate to crystallisation in the absence of air to avoid oxidation. Evaporate the solution in a stream of HCl gas while being heated just below its boiling point until a syrup is formed and finally to dryness at 80-100o and dried in a vacuum over H2SO4. When heated at 700o in the presence of Cl2 the insoluble -form is obtained [Grube in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1598 1965, Carlsen et al. J Org Chem 46 3936 1981].

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