CAS 7440-15-5 Rhenium powder (99.99%) PURATREM

Synonyms

I14-42280; Rhenium, foil, thickness 0.04 mm, length 1 m, coil width .8 mm; Rhenium, foil, thickness 0.04 mm, length 0.2 m, coil width .7 mm; Rhenium, foil, thickness 0.025 mm, length 5 m, coil width 0.76 mm; Rhenium, wire reel, 0.5m, diameter 0.25mm, annealed, 99.97%; Rhenium, wire reel, 1m, diameter 0.2mm, annealed, 99.97%; Rhenium, foil, thickness 0.125 mm, size 25 x 25 mm, purity 99.99%; Rhenium foil, 1.0mm (0.04in) thick; MFCD00011195; Rhenium, wire reel, 1m, diameter 0.15mm, annealed, 99.97%;

IUPAC Name

rhenium;

Molecular Weight

186.207g/mol

Molecular Formula

Re;

Canonical SMILES

[Re];

InChI

InChI=1S/Re;

InChI Key

WUAPFZMCVAUBPE-UHFFFAOYSA-N;

Storage

Flammables area

Covalently-Bonded Unit Count

EC Number

231-124-5

Exact Mass

186.956g/mol

Heavy Atom Count

Monoisotopic Mass

186.956g/mol

Topological Polar Surface Area

0A^2

UNII

7YHU292INY

Application

Rhenium powder (99.99%) PURATREM is designed to capitalize on the exceptional properties of rhenium for advanced technological applications. As a high-purity gray powder, it finds its primary use in electron tube and semiconductor industries, contributing significantly to electrical contacts and serving as a catalyst. Its remarkable ability to withstand extreme temperatures enhances its functionality in high-temperature thermocouples, improving the usability of tungsten and molybdenum alloys. In the realm of surface finishing, it is utilized in plating jewelry, medical instruments, high vacuum equipment, and mirror backings. The addition of small amounts of rhenium to iron forms highly durable and temperature-resistant steel, suited for applications requiring long-wearing electrical components such as switches and thermocouples. Its high melting point makes rhenium alloys ideal for rocket and missile engine components and the filaments of photographic flash lamps. Furthermore, rhenium serves as a standard in age measurement of the universe, thanks to the stable decay rate of its isotope (187Re). As a catalyst, rhenium on alumina spheres is employed in synthetic chemistry and ammonia synthesis. The combination of ductility, chemical resistance, and superior emission characteristics make rhenium an optimal choice for filaments in mass spectrographs and ion gauges. Its electrical contact properties, featuring excellent stability and resistance to wear, far outlast conventional platinum palladium contacts, marking it as a superior material for make-and-break switching applications.

December 12, 2024

Outstanding Quality for High-Temperature Applications

The Rhenium powder (99.99%) from Alfa Chemistry is indispensable for high-temperature research. Its stable, high-performance properties are ideal for developing durable electrical contacts in semiconductor applications and advanced alloy testing.