Iridium (version 1)
Iridium (Version 1) - Periodic Table of Videos

Introduction
This video from the Periodic Table of Videos series discusses iridium, a dense metal known for its high melting point and significant industrial applications, particularly in catalysis.
Main Points
- Properties of Iridium:
- Iridium is a dense, very heavy metal, although the sample shown is a sponge-type, making it lightweight and finely divided.
- It is situated at the bottom of the group that includes cobalt and rhodium.
- Catalytic Applications:
- Iridium is used in various catalysts, sometimes outperforming rhodium.
- An example mentioned is the replacement of rhodium with iridium in chemical plants, leading to increased production without additional infrastructure.
- This process is known as "de-bottlenecking," a term used by chemical engineers to describe increasing output without expanding physical plant size.
- Handling the Sample:
- The video shows the iridium sample in a glass ampule, highlighting its sponge-like texture.
- The material’s lightness is emphasized as it flows inside the vial, demonstrating its finely divided form.
Conclusion
The video highlights the unique properties and significant industrial applications of iridium, particularly in catalysis. The replacement of rhodium with iridium in certain processes exemplifies the metal's efficiency and economic benefits in chemical production.