Iridium

Formula
Ir
Structure
Description
Gray powder.
Uses
Substance is used in manufacturing crucibles.

Registry Numbers and Inventories.
CAS
7439-88-5
EC (EINECS/ELINCS)
231-095-9
UN (DOT)
3089
Merck
12,5098
Beilstein/Gmelin
16298 (G)
Swiss Giftliste 1
G-9573
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Ir
Formula mass
192.22
Melting point, °C
2443
Boiling point, °C
4500
Density
22.65 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. 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. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation.
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.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Remove all sources of ignition.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Zinc, halogens, sodium peroxide, lead, tin, interhalogens, potassium hydroxide, nitrate, potassium sulfate, fluorine, chlorine.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Material can spontaneously ignite (pyrophoric) when exposed to air at normal or slightly elevated temperatures. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Flammable solid. Extinguishing media: Use dry chemical to fight fire.
Fire potential
Flammable solid.
Hazards
This material in sufficient quantity and reduced particle size is capable of creatinga dust explosion.

Health.
Poison_Class
-
Exposure effects
   Ingestion
May cause irritation of the digestive tract. Expected to be a low ingestion hazard.
   Inhalation
Low hazard for usual industrial handling.
   Skin
Low hazard for usual industrial handling.
   Eyes
May cause eye irritation.

First aid
 
   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.
   Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
   Skin
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
3089
Response guide
Hazard class
4.1
Packing Group
II; III