Agent Name

Iridium

CAS Number

7439-88-5

Formula

Ir

Major Category

Metals

Synonyms

Iridium, elemental

Category

Elements, Metallic

Description

Silver-white metal; [Hawley]

Sources/Uses

Used to harden platinum alloys for pen points, compass bearings, electrical contacts, laboratory ware, extrusion dies, and jewelry; [HSDB]

Comments

Iridium salts can cause immunologic, occupational contact urticaria; [Kanerva, p. 219] "The metals in this group [platinum, palladium, iridium, osmium, rhodium, and ruthenium] generally are nontoxic in the metallic state, but the soluble halide salts (particularly of Pt) and osmium tetroxide are highly reactive. Exposure to these elements results in hypersensitivity allergic reactions in susceptible individuals." [Sullivan, p. 911] See "Iridium-192."

Exposure Assessment
Explanatory Notes

mp = 2443 degrees C; [Hawley]

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Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure:

Activities

Activities with risk of exposure: