77 Ir 192.217

Iridium

transition metal · Group 9 · Period 6

USGS 2025 DOE 3 section(s) thin

Atomic properties

Atomic number
77
Z
Atomic weight
192.217[1]
g/mol
Density
22.56 g/cm³
at STP
Melting point
2466 °C
at 1 atm
Boiling point
4428 °C
at 1 atm
Crystal structure
FCC
Electron config.
[Xe] 4f¹⁴ 5d⁷ 6s²
Oxidation states
+3, +4
most common

Market data

No tradeable futures market for Ir on Yahoo / Stooq. Live market data is not available; pricing in this page is based on contract reference figures from the source documents.

Commercial forms & specifications

Product FormChemical FormulaMolecular WeightTypical PurityPrice Range (USD/g)Main Applications
Iridium Sponge/PowderIr192.22 g/mol99.9-99.99%$180-250Catalyst precursor, alloys
Iridium Black (Fine Powder)Ir192.22 g/mol99.9%$200-280Catalysts, electrodes
Iridium WireIr192.22 g/mol99.9-99.95%$250-350Spark plugs, thermocouples
Iridium Sheet/FoilIr192.22 g/mol99.9%$300-400Crucibles, electrodes
Iridium CruciblesIr192.22 g/mol99.9%$350-500Crystal growth, high-temp processing
Iridium OxideIrO₂224.22 g/mol99.9%$220-320Electrochromics, electrodes
Chloroiridic AcidH₂IrCl₆·6H₂O514.99 g/mol99%$150-200Catalyst preparation, plating
Ir-Pt Alloy (10% Ir)Ir₀.₁Pt₀.₉194.74 g/mol avg99.95%$80-120Thermocouples, jewelry
Ir-Ru AlloyVariableVariable99.9%$180-250Electrical contacts
Iridium PelletsIr192.22 g/mol99.9-99.99%$200-300Sputtering targets, evaporation
Iridium NanoparticlesIr192.22 g/mol99.9%$800-1500Catalysis research, sensors
Iridium ChlorideIrCl₃298.58 g/mol99%$180-250Catalyst precursor

Suppliers by country

🇿🇦 South Africa

CompanyProduct FormsSpecialties
Anglo American PlatinumSponge, powder, refined metalPrimary producer from PGM ores, integrated refining
Impala PlatinumSponge, powder, saltsPGM mining and refining, iridium recovery
Sibanye-StillwaterRefined iridium, powderPGM producer, recycling capabilities

🇷🇺 Russia

CompanyProduct FormsSpecialties
Norilsk NickelSponge, powder, refined formsWorld's largest palladium producer, significant iridium output

🇬🇧 United Kingdom

CompanyProduct FormsSpecialties
Johnson MattheyAll forms, compounds, alloys, fabricated productsPGM refining, catalyst manufacture, recycling

🇩🇪 Germany

CompanyProduct FormsSpecialties
HeraeusWire, sheet, crucibles, compoundsHigh-purity products, custom fabrication
BASF (Catalysts Division)Catalyst-grade powder, compoundsIndustrial catalysts, chemical processing

🇯🇵 Japan

CompanyProduct FormsSpecialties
Tanaka KikinzokuWire, powder, compounds, targetsElectronics applications, high-purity products
Furuya MetalCrucibles, wire, sheetUltra-high purity iridium, crystal growth applications

🇺🇸 United States

CompanyProduct FormsSpecialties
Sabin Metal CorporationRecycled iridium, refined productsPGM recovery and refining
Engelhard (BASF)Catalyst materials, compoundsIndustrial catalysts

🇨🇳 China

CompanyProduct FormsSpecialties
Jinchuan GroupPowder, refined metalPGM refining from nickel operations
Sino-Platinum MetalsCompounds, powder, wireSecondary refining, catalyst recycling

Market demand by product form

ApplicationAnnual Demand (kg)% of TotalKey RegionsGrowth Rate (CAGR)
Electrical/Electronics3,50042%Asia (65%), Americas (20%)4.8%
Chemical/Electrochemical2,10025%Europe (35%), Asia (40%)6.2%
Spark Plugs1,50018%Japan (40%), USA (25%)3.5%
Crucibles & Lab Equipment7509%Global distribution5.1%
Other Industrial4506%Various4.0%

Moles per kilogram

Product FormFormulaMW (g/mol)Moles/kg
Iridium MetalIr192.225.20
Iridium(IV) OxideIrO₂224.224.46
Iridium(III) ChlorideIrCl₃298.583.35
Chloroiridic Acid (hydrated)H₂IrCl₆·6H₂O514.991.94
Hexachloroiridate(IV)(NH₄)₂IrCl₆441.012.27

References

No citations on this page yet. References will appear here once enrichment runs.

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Coverage notes

The following sections are thin or absent in the source document for this element. They will be filled by enrichment passes (NIST atomic, OSHA/NIOSH safety, USGS / IAI environmental).