Elements · ← Os Osmium · Pt Platinum →
Ir Iridium
Basic facts
| Symbol | Ir |
|---|---|
| Atomic number | 77 |
| Standard atomic weight | 192.22 |
| Group | 9 |
| Period | 6 |
| Block | d-block |
| Category | Transition metal |
| Standard state | Solid |
| Discovered | 1803 |
Source: PubChem, Iridium (periodic table data, retrieved 2026-10-19). Group and period follow the standard 18-column periodic table.
Biotech uses & experiments
No dedicated element entries yet; the topics and entries below involve iridium.
Topics on this site about iridium
- Mass extinctions and recovery2 entries
Entries elsewhere on the site that mention iridium
Found by name, common compounds and chemical formulas in each entry.
- The asteroid hypothesis · Mass extinctions and recovery · 1980
- Rhodium and iridium anticancer complexes · Rhodium · 2012
Patents
Search Google Patents for iridium in biological and medical uses: all patents · recent applications (2022+)
A patent is a legal claim, not proof that something works. See the Patents page.