CAS 37186-87-1 Platinum Iridium Alloy - Materials / Alfa Chemistry

NAVIGATION

Platinum Iridium Alloy

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Catalog Number

ACM37186871

CAS Number

37186-87-1

Product Name

Platinum Iridium Alloy

Structure

Category

Ceramic Materials

IUPAC Name

iridium;platinum

Molecular Weight

387.3g/mol

Molecular Formula

IrPt

Canonical SMILES

[Ir].[Pt]

InChI

InChI=1S/Ir.Pt

InChI Key

HWLDNSXPUQTBOD-UHFFFAOYSA-N

Application

The Platinum Iridium Alloy is designed to enhance mechanical properties and resist corrosion while maintaining workability, making it an essential material across various applications. By combining up to 20% iridium with platinum, the alloy maintains significant ductility, though higher iridium content may complicate fabrication. This alloy finds its use in non-standard thermocouples, electrical contacts, and electrodes in medical research due to its toughness and noncorrosive nature. For example, an alloy of 95% platinum and 5% iridium exhibits a Brinell hardness of 170, suited for jewelry production, while a 30% iridium composition offers a hardness of 400, applicable to surgical instruments. Additionally, the 80%-20% blend is ideal for magneto contact points, and the 90%-10% mixture serves well in the electric contacts of industrial control devices. The incorporation of iridium does not affect the platinum's color, and chemical reactivity varies with composition; for example, a 5% alloy dissolves easily in aqua regia, unlike a 30% alloy which dissolves more slowly.

Complexity

Covalently-Bonded Unit Count

Exact Mass

387.92772g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

platinum-iridium alloy;Pt-Ir alloy

Monoisotopic Mass

387.92772g/mol

Rotatable Bond Count

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