Iridium Powder



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


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: 02/10/2016
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. See safety data and research below and pricing/lead time above. 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

Diastereo- and Enantioselective Iridium Catalyzed Carbonyl (α-Cyclopropyl)allylation via Transfer Hydrogenation., Tsutsumi, Ryosuke, Hong Suckchang, and Krische Michael J. , Chemistry, 2015 Sep 7, Volume 21, Issue 37, p.12903-7, (2015)

Synthesis of Fluoroalkoxy Substituted Arylboronic Esters by Iridium-Catalyzed Aromatic C-H Borylation., Batool, Farhat, Parveen Shehla, Emwas Abdul-Hamid, Sioud Salim, Gao Xin, Munawar Munawar A., and Chotana Ghayoor A. , Org Lett, 2015 Sep 4, Volume 17, Issue 17, p.4256-9, (2015)

Blue-green emitting cationic iridium complexes with 1,3,4-oxadiazole cyclometallating ligands: synthesis, photophysical and electrochemical properties, theoretical investigation and electroluminescent devices., Wang, Zhen, He Lei, Duan Lian, Yan Jun, Tang Ruiren, Pan Chunyue, and Song Xiangzhi , Dalton Trans, 2015 Sep 28, Volume 44, Issue 36, p.15914-23, (2015)

Blue-green emissive cationic iridium(III) complexes using partially saturated strongly-donating guanidyl-pyridine/-pyrazine ancillary ligands., Hasan, Kamrul, Pal Amlan K., Auvray Thomas, Zysman-Colman Eli, and Hanan Garry S. , Chem Commun (Camb), 2015 Sep 25, Volume 51, Issue 74, p.14060-3, (2015)

Water-Soluble Iridium-NHC-Phosphine Complexes as Catalysts for Chemical Hydrogen Batteries Based on Formate., Horváth, Henrietta, Papp Gábor, Szabolcsi Roland, Kathó Ágnes, and Joó Ferenc , ChemSusChem, 2015 Sep 21, Volume 8, Issue 18, p.3036-8, (2015)

Enhanced Hydrogen Generation from Formic Acid by Half-Sandwich Iridium(III) Complexes with Metal/NH Bifunctionality: A Pronounced Switch from Transfer Hydrogenation., Matsunami, Asuka, Kayaki Yoshihito, and Ikariya Takao , Chemistry, 2015 Sep 21, Volume 21, Issue 39, p.13513-7, (2015)

Hematite-Based Solar Water Splitting in Acidic Solutions: Functionalization by Mono- and Multilayers of Iridium Oxygen-Evolution Catalysts., Li, Wei, Sheehan Stafford W., He Da, He Yumin, Yao Xiahui, Grimm Ronald L., Brudvig Gary W., and Wang Dunwei , Angew Chem Int Ed Engl, 2015 Sep 21, Volume 54, Issue 39, p.11428-32, (2015)

Water-soluble Ir(iii) complexes of deprotonated N-methylbipyridinium ligands: fluorine-free blue emitters., Coe, Benjamin J., Helliwell Madeleine, Sánchez Sergio, Peers Martyn K., and Scrutton Nigel S. , Dalton Trans, 2015 Sep 21, Volume 44, Issue 35, p.15420-3, (2015)

A Luminescent Cocaine Detection Platform Using a Split G-Quadruplex-Selective Iridium(III) Complex and a Three-Way DNA Junction Architecture., Ma, Dik-Lung, Wang Modi, He Bingyong, Yang Chao, Wang Wanhe, and Leung Chung-Hang , ACS Appl Mater Interfaces, 2015 Sep 2, Volume 7, Issue 34, p.19060-7, (2015)

Synthesis, characterization, photophysics and electrochemical study of luminescent iridium(III) complexes with isocyanoborate ligands., Chan, Kin-Cheung, Chu Wing-Kin, Yiu Shek-Man, and Ko Chi-Chiu , Dalton Trans, 2015 Sep 14, Volume 44, Issue 34, p.15135-44, (2015)