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- Iridium (Ir) Metal Synonyms:
iridio, iridium, elemental, iridium (IV) ion, iridium ion, iridium sponge, iridium, ion(Ir4 ), CAS#7439-88-5, iridium pieces, iridium powder, iridium shot, iridium slug, iridium foil, iridium ingot, iridium target, iridium wire, iridium rod
- Iridium (Ir) Metal Designations:
Chemical Name: Iridium
Chemical Formula: Ir
Iridium, a precious metal, has an appearance similar to platinum in that it is white but with a slightly yellowish tint. Iridium, the most corrosion-resistant metal known, is very hard, brittle, and has a low ductility, making it difficult to machine, form, or work. Its' principle use is as a hardening agent for platinum, though it is frequently found in crucibles and other high temperature devices.
- Iridium (Ir) Metal Chemical Properties Available:
99.9%
Pieces, shot, slug, foil, ingot, target, wire, rod
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Atomic Number
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77
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Molecular Weight (g/mol.)
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192.2
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Apparent Density (g/cm3)
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22.65
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Poisson Ratio
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o.26
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Specific Heat @0°C (cal/g-°C)
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.031
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Melting Point (°C)
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2454
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Boiling Point (°C)
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5300
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Thermal Conductivity (cal/s-cm°C)
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.35
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Vickers Hardness
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500 annealed
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Young's Modulus
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528 GPa
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Electrical Resistivity (20 °C)
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47.1 nΩ·m
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Magnetic Ordering
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paramagnetic
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Color
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white
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Crystallography
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cubic structure, face centered
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1) The tip of gold pens, crucibles and special containers. The high melting point, hardness and corrosion resistance of iridium and its alloys determine most of its applications.
2) Corrosion and heat resistance makes iridium an important alloying agent. It is mainly used is as a hardening agent in Platinum alloys, Used in treating prostate and other cancers by high dose radiation therapy, Used in the manufacture of crucibles, special containers and other apparatus resistant to intense heat, Alloyed with Platinum to make heavy duty electrical contacts such as high performance technically advanced spark plugs for use in the automotive and aviation industries, As a catalyst to produce acetic acid.
Drums or to customer specification meeting DOT regulations
Listed. For further information please call the E.P.A. at +1.202.554.1404
CAS# 7439-88-5
3089
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