Product Identification

Product Name

Cuprous iodide

Synonyms

Copper iodide
Copper monoiodide
Cuprous iodide
Hydro-Giene
Iodocopper
Natural marshite

CAS

7681-65-4

Formula

CuI

Molecular Weight

190.44

EINECS

231-674-6

Merck

13,2692

Beilstein/Gmelin

13694 (G)

Physical and Chemical Properties

Appearance

Odorless tan or off-white solid.

Solubility in water

Insoluble

Melting Point

602

Boiling Point

1290

Vapor Pressure

100 (656 C)

Density

5.62 g/cm3

Usage

Used as a catalyst in organic reactions.

Refractive Index

2.033

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Do not store in direct sunlight. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

Dust is irritating to the respiratory tract.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.

Hazards

Irritating hydrogen iodide or iodine vapors may form in fire.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

UN (DOT)

2074

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

Increased temperature may be noted in some cases. Abnormally low blood pressure may occur. Mental status may be depressed. Cretinism and goiter have been reported in children whose mothers were taking iodides.

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Substance is noncombustible. May form very sensitive, explosive metallic compounds. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

15

Incompatibilities

Oxidizing agents, alkali metals, potassium, acetylene.

Stability

Stable under normal temperatures and pressures.

Decomposition

Hydrogen iodide, iodine.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2074

Hazard Class

6.1

Packing Group

III

HS Code

2827 60 00