Agent Name

Copper(I) iodide

Alternative Name

Cuprous iodide

CAS Number

7681-65-4

Formula

Cu-I

Major Category

Metals

Synonyms

Copper iodide (CuI); Copper monoiodide; Copper(1+) iodide; Cuprous iodide; Hydro-Giene; Natural marshite; [ChemIDplus] UN3077

Category

Metals, Inorganic Compounds

Description

White to brownish-yellow solid; [Hawley] Insoluble in water; [Ullmann] White to light brown powder chunks with a weak odor; [Alfa Aesar MSDS]

Sources/Uses

Used in photography, light-sensitive papers, oil drilling (corrosion inhibitor), and to stabilize light and heat in polymers; Also used in cloud seeding and as a feed additive; Occurs in nature as marshite; [Ullmann] Used as a catalyst, ice-nucleating chemical, coating in cathode-ray tubes, temperature indicator (with mercuric iodide), nutritional supplement, bactericide, and oxidizing agent in lithium primary batteries; [HSDB]

Comments

A skin, eye, nose, and throat irritant; [HSDB] Acute copper poisoning after ingestion can cause liver injury, methemoglobinemia, and hemolytic anemia. Acute renal failure may result, secondary to massive hemoglobinuria. [Goldfrank, p. 1259] A skin and strong eye irritant; Harmful by ingestion; [Alfa Aesar MSDS] See "Copper."

Exposure Assessment
TLV (ACGIH)

1 mg/m3, as Cu [0.01 ppm, inhalable fraction and vapor (iodides)]

PEL (OSHA)

1 mg/m3, as Cu

MAK

0.01 mg/m3, respirable fraction (Cu inorg. Cmpds.)

IDLH (NIOSH)

100 mg/m3, as Cu

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Environmentally hazardous substances, solid, n.o.s."

Adverse Effects
Anemia

Anemia, Hemolytic

Hepatotoxin

Hepatotoxin, Secondary

Nephrotoxin

Yes

Methemoglobinemia

Methemoglobinemia, Secondary

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: