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CAS No 7439-88-5 , iridium

  • Name: iridium
  • Synonyms: (185ir)iridium; 7439-88-5;(190ir)iridium; IR; AG-G-95652; (188ir)iridium; (182ir)iridium; IRIDIUM ION; (184ir)iridium;iridium;
  • CAS Registry Number:
  • Transport: UN 1789
  • Melting Point: 2443 ºC
  • Boiling Point: 4500 ºC
  • Density: 1.05 g/mL at 25ºC
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 231-095-9
  • Molecular Weight: 192.217
  • InchiKey: GKOZUEZYRPOHIO-UHFFFAOYSA-N
  • InChI: InChI=1S/Ir
  • Risk Statements: S26
  • Molecular Formula: Ir
  • Molecular Structure:CAS No:7439-88-5 iridium
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7439-88-5 IRIDIUM BLACK; 3N (99.9%IR)

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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7439-88-5 100405 IRIDIUM BLACK

  • Germany chemcube UG [Manufacturer]
  • Tel: +49 (22 08) 7 75 04 06
  • Fax: +49 (22 08) 7 75 02 30 /
    +49 (32 12) 1 00 74 76
  • Address: chemcube UG
    Salierweg 1
    53859 Niederkassel
    Germany ,Germany
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7439-88-5 Catalysts, Iridium

  • China Hangzhou Sage Chemical Co., Ltd. [, Manufacturer]
  • Tel: +86-571-86818502
  • Fax: +86-571-86818503
  • Address: RM501 Tower A, New Youth Plaza, NO.8 Jia Shan Road, Hangzhou, Zhejiang 310014, ,ZhejiangChina
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7439-88-5 IRIDIUM

  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany ,Germany
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7439-88-5 Catalysts, Iridium

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7439-88-5 Catalysts, Iridium

  • China China Langchem Inc. []
  • Tel: +86-(21)-58956006
  • Fax: +86-(21)-58956100
  • Address: 514 Room, 1# Building, 88# Cailun Road, Zhangjiang High Tech Park, Shanghai 201203, ,China
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7439-88-5 Iridium

  • United States GFS Chemicals, Inc. [Manufacturer]
  • Tel: 800-858-9682/ 740-881-5501
  • Fax: 740-881-5989
  • Address: GFS Chemicals, Inc.
    P.O. Box 245
    Powell, OH 43065 ,United States
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7439-88-5 Catalysts, Iridium

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7439-88-5 (0639) IRIDIUM

  • Germany Fox Chemicals GmbH [Manufacturer]
  • Tel: +49.7240.927151/ +49.160.95781845 (Mobile)
  • Fax: +49.7240.927150
  • Address: Fox Chemicals GmbH
    Bockstalstr.10 A
    D-76327 Pfinztal-Germany ,Germany
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7439-88-5 IRIDIUM, SPONGE

  • United States ProChem, Inc. [Manufacturer]
  • Tel: 800-795-8788
  • Address: ProChem, Inc.
    826 Roosevelt Rd.
    Rockford IL 61109 ,United States
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References of iridium
Title: Iridium
CAS Registry Number: 7439-88-5
Literature References: Ir; at. wt 192.217; at. no. 77; valences 1, 3, 4; also 2, 5, 6. Group VIII (9). Two naturally occurring isotopes: 191 (38.5%); 193 (61.5%); artificial, radioactive isotopes: 182-190; 191; 192; 194-198. Occurrence in earth's crust about 0.001 ppm. Discovered in 1804 by Tennant. Occurs in nature in the metallic state, usually as a natural alloy with osmium (osmiridium); found in small quantities alloyed with native platinum (platinum mineral) or with native gold. Recovery and purification from osmiridium: Deville, Debray, Ann. Chim. Phys. 61, 84 (1861); from the platinum mineral: Wichers, J. Res. Natl. Bur. Stand. 10, 819 (1933). Reviews of prepn, properties and chemistry of iridium and other platinum metals: Gilchrist, Chem. Rev. 32, 277-372 (1943); W. P. Griffith, The Chemistry of the Rarer Platinum Metals (John Wiley, New York, 1967) pp 1-41, 227-312; Livingstone in Comprehensive Inorganic Chemistry vol. 3, J. C. Bailar Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 1163-1189, 1254-1274.
Properties: Silver-white, very hard metal; face-centered cubic lattice. mp 2450°; bp ~4500°. d420 22.65; highest sp gr of all elements. Specific heat 0.0307 cal/g/°C. Mohs' hardness 6.5. Pure iridium is not attacked by any acids including aqua regia; only slightly by fused (non-oxidizing) alkalies. It is superficially oxidized on heating in the air. Is attacked by fluorine and chlorine at a red heat; attacked by potassium sulfate or by a mixture of potassium hydroxide and nitrate on fusion; attacked by lead, zinc or tin. The powdered metal is oxidized by air or oxygen at a red heat to the dioxide, IrO2, but on further heating the dioxide dissociates into its constituents.
Melting point: mp 2450°
Boiling point: bp ~4500°
Density: d420 22.65
Use: In manufacturing crucibles; in hardening platinum; in making nibs for fountain-pen points.