Iridium Oxide Powder

Iridium Oxide Powder

Iridium Oxide Powder

Introduction:

Iridium oxide powder is a highly stable and inert compound of iridium, a rare and precious metal in the platinum group. Iridium oxide is typically produced by the oxidation of iridium metal at high temperatures in the presence of oxygen. It can also be synthesized by the reaction of iridium salts with oxidizing agents.

Iridium oxide is a black to dark brown powder that is known for its remarkable chemical stability, electrochemical properties, and high catalytic activity. It is one of the most inert materials in nature and is resistant to corrosion, making it valuable in harsh environments. The compound is particularly renowned for its use in electrochemical processes, such as catalysis and electrode applications, and it plays a key role in various advanced technologies.

Properties:

Physical Properties:

Color: Iridium oxide powder is typically black to dark brown.

Density: It has a high density of about 22.4 g/cm³.

Melting Point: Iridium oxide has a high melting point around 1,800°C, contributing to its thermal stability.

Solubility: It is insoluble in most acids, but it dissolves in aqua regia (a mixture of hydrochloric and nitric acid).

Conductivity: Iridium oxide has high electrical conductivity, which makes it effective in electronic applications.

Chemical Properties:

Stability: Iridium oxide is chemically inert and resistant to corrosion in most environments, including in aqua regia.

Electrocatalytic Activity: Iridium oxide exhibits excellent electrocatalytic activity, particularly for oxygen evolution reactions (OER), making it ideal for use in electrochemical processes.