Ruthenium on alumina - Materials / Alfa Chemistry

NAVIGATION

Ruthenium on alumina

PRICE INQUIRY

Catalog Number

ACMA00003163

Product Name

Ruthenium on alumina

Category

Fuel Cell Catalysts

Description

Solid

IUPAC Name

ruthenium

Molecular Weight

101.1g/mol

Molecular Formula

Canonical SMILES

[Ru]

InChI

InChI=1S/Ru

InChI Key

KJTLSVCANCCWHF-UHFFFAOYSA-N

Melting Point

2334°C

Application

When heated in air at 500 to 700°C, ruthenium converts to its dioxide, RuO2, a black crystalline solid of rutile structure. A trioxide of ruthenium, RuO3, also is known; formed when the metal is heated above 1,000°C. Above 1,100°C the metal loses weight because trioxide partially volatilizes. Ruthenium also forms a tetroxide, RuO4, which, unlike osmium, is not produced by direct union of the elements.

Halogens react with the metal at elevated temperatures. Fluorine reacts with ruthenium at 300°C forming colorless vapors of pentafluoride, RuF5, which at ordinary temperatures converts to a green solid. Chlorine combines with the metal at 450°C to form black trichloride, RuCl3, which is insoluble in water. Ru metal at ambient temperature is attacked by chlorine water, bromine water, or alcoholic solution of iodine.

Ruthenium is stable in practically all acids including aqua regia. Fusion with an alkali in the presence of an oxidizing agent forms ruthenate, RuO42- and perruthenate, RuO4¯.

When finely-divided Ru metal is heated with carbon monoxide under 200 atm pressure, ruthenium converts to pentacarbonyl, Ru(CO)5, a colorless liquid that decomposes on heating to diruthenium nonacarbonyl, Ru2(CO)9, a yellow crystalline solid. Ruthenium reacts with cyclopentadiene in ether to form a sandwich complex, a yellow crystalline compound, bis(cyclopentadiene) ruthenium(0), also known as ruthenocene.

Storage

Flammables area

Complexity

Covalently-Bonded Unit Count

EC Number

231-127-1

Exact Mass

101.90434g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

Ruthenium