Ruthenium

Formula
Ru
Structure
Description
Silvery-white metal,. Gray powder. Odorless.
Uses
Used as a substitute for platinum in jewelry.

Registry Numbers and Inventories.
CAS
7440-18-8
EC (EINECS/ELINCS)
231-127-1
S 22 24/25
UN (DOT)
3089
Merck
12,8452
Beilstein/Gmelin
16241 (G)
Swiss Giftliste 1
G-9583
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Ru
Formula mass
101.07
Melting point, °C
2310
Boiling point, °C
3900
Density
12.45 g/cm3 (20 C)
Solubility in water
Insoluble
Surface tension
2250 erg/cm2 (2310 C)
Thermal expansion
9.07E-5/K (20 C)
Heat of fusion
19.6 kJ/mol
Heat of vaporization
619.5 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Handling
Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
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. Remove all sources of ignition. Use a spark-proof tool.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. 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 creating a dust explosion.

Health.
Poison_Class
-
Exposure effects
   Ingestion
The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   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.

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