Iridium Powder

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(2N) 99% Iridium Powder IR-M-02-P Pricing
(3N) 99.9% Iridium Powder IR-M-03-P Pricing
(4N) 99.99% Iridium Powder IR-M-04-P Pricing
(5N) 99.999% Iridium Powder IR-M-05-P Pricing


Molecular Weight 192.22
Appearance Gray powder
Melting Point 2466 °C
Boiling Point 4130 °C
Density 22.56 g/cm3
Thermal Expansion

6.4 µm/(m·K)

Poisson Ratio 0.26
Vickers Hardness 1760 MPa
Young's Modulus 528 GPa
Tensile Strength 2000 MPa
Thermal Conductivity 1.47 W/m ·K
Electronegativity 2.2 Paulings
Specific Heat 133 J/kg ·K
Heat of Vaporization 564 kJ/mol
Heat of Fusion 41.12 kJ/mol

Health & Safety Information

Signal Word Danger
Hazard Statements H228-H319
Hazard Codes F,Xi
Risk Codes 13455
Safety Statements 16-26
RTECS Number N/A
Transport Information UN 3089 4.1/PG 2
WGK Germany 3

View and Print SDS


Date Accessed: 05/04/2016
Date Revised: 05/15/2015


Product Name: Iridium Powder

Product Number: All applicable American Elements product codes, e.g. IR-M-02-P, IR-M-03-P, IR-M-04-P, IR-M-05-P

CAS #: 7439-88-5

Relevant identified uses of the substance: Scientific research and development

Supplier details:
American Elements
1093 Broxton Ave. Suite 2000
Los Angeles, CA 90024
Tel: +1 310-208-0551
Fax: +1 310-208-0351

Emergency telephone number:
Domestic, North America +1 800-424-9300
International +1 703-527-3887


Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2016 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY.


Ultra High Purity Metal PowdersAmerican Elements specializes in producing high purity Iridium Powder with the smallest possible average grain sizes for use in preparation of pressed and bonded sputtering targets and in Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Nanoparticles also produce very high surface areas. Our standard powder particle sizes average in the range of - 325 mesh, - 100 mesh, 10-50 microns and submicron (< 1 micron). We can also provide many materials in the nanoscale range. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar, or plate form, as well as other machined shapes and through other processes such as nanoparticles and in the form of solutions and organometallics. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. We also produce Iridium as rod, ingot, pieces, pellets, disc, granules, wire, and in compound forms, such as oxide. Other shapes are available by request.



Chemical Identifiers

Formula Ir
CAS 7439-88-5
Pubchem CID 23924
MDL MFCD00011062
EC No. 231-095-9
Beilstein Registry No. N/A
InchI Identifier InChI=1S/Ir

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Iridium products. Iridium (atomic symbol: Ir, atomic number: 77) is a Block D, Group 9, Period 6 element with an atomic weight of 192.217. The number of electrons in each of iridium's shells is [2, 8, 18, 32, 15, 2] and its electron configuration is [Xe] 4f14 5d7 6s2. Iridium Bohr ModelThe iridium atom has a radius of 136 pm and a Van der Waals radius of 202 pm. Iridium was discovered and first isolated by Smithson Tennant in 1803. In its elemental form, Iridium has a silvery white appearance. Iridium is a member of the platinum group of metals.Elemental Iridium It is the most corrosion resistant metal known and is the second-densest element (after osmium). It will not react with any acid and can only be attacked by certain molten salts, such as molten sodium chloride. Iridium is found as an uncombined element and in iridium-osmium alloys. Iridium's name is derived from the Greek goddess Iris, personification of the rainbow, on account of the striking and diverse colors of its salts.

Recent Research

Immobilization and electrochemical properties of ruthenium and iridium complexes on carbon electrodes., Gupta, Ayush, Blakemore James D., Brunschwig Bruce S., and Gray Harry B. , J Phys Condens Matter, 2016 Mar 9, Volume 28, Issue 9, p.094002, (2016)

Ultrafast excited state dynamics of iridium(iii) complexes and their changes upon immobilisation onto titanium dioxide layers., Tschierlei, Stefanie, Neubauer Antje, Rockstroh Nils, Karnahl Michael, Schwarzbach Patrick, Junge Henrik, Beller Matthias, and Lochbrunner Stefan , Phys Chem Chem Phys, 2016 Mar 23, (2016)

Analytically useful blue chemiluminescence from a water-soluble iridium(iii) complex containing a tetraethylene glycol functionalised triazolylpyridine ligand., Smith, Zoe M., Kerr Emily, Doeven Egan H., Connell Timothy U., Barnett Neil W., Donnelly Paul S., Haswell Stephen J., and Francis Paul S. , Analyst, 2016 Mar 21, Volume 141, Issue 7, p.2140-4, (2016)

Luminescent Iridium(III) Cyclometalated Complexes with 1,2,3-Triazole "Click" Ligands., Connell, Timothy U., White Jonathan M., Smith Trevor A., and Donnelly Paul S. , Inorg Chem, 2016 Mar 21, Volume 55, Issue 6, p.2776-90, (2016)

Real-time tracking mitochondrial dynamic remodeling with two-photon phosphorescent iridium (III) complexes., Huang, Huaiyi, Yang Liang, Zhang Pingyu, Qiu Kangqiang, Huang Juanjuan, Chen Yu, Diao JiaJie, Liu Jiankang, Ji Liangnian, Long Jiangang, et al. , Biomaterials, 2016 Mar, Volume 83, p.321-31, (2016)

Iridium(I) NHC/Phosphine Catalysts for Mild and Chemoselective Hydrogenation Processes., Kerr, William John, Mudd Richard J., and Brown Jack A. , Chemistry, 2016 Feb 8, (2016)

Phosphorescence quenching of fac-tris(2-phenylpyridyl)iridium(iii) complexes in thin films on dielectric surfaces., Ribierre, J C., Ruseckas A, Staton S V., Knights K, Cumpstey N, Burn P L., and Samuel I D. W. , Phys Chem Chem Phys, 2016 Feb 7, Volume 18, Issue 5, p.3575-80, (2016)

Capturing HBCy2 : Using N,O-Chelated Complexes of Rhodium(I) and Iridium(I) for Chemoselective Hydroboration., Drover, Marcus W., Schafer Laurel L., and Love Jennifer A. , Angew Chem Int Ed Engl, 2016 Feb 5, (2016)