Gadolinium

Formula
Gd
Structure
Description
Silvery to gray metal
Uses
Oxide in control rods of some nuclear power reactors.

Registry Numbers and Inventories.
CAS
7440-54-2
EC (EINECS/ELINCS)
231-162-2
RTECS
LW3850000
RTECS class
Tumorigen
Merck
12,4346
Beilstein/Gmelin
16286 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
Gd
Formula mass
157.25
Melting point, °C
1312
Boiling point, °C
3273
Vapor pressure, mmHg
0.01 (1600 C)
Density
7.886 g/cm3 (20 C)
Thermal expansion
1.05E-5/K (20 C)
Heat of vaporization
360.7 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Store under an inert atmosphere.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate safety goggles, protective clothing and gloves.
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
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
No data.
Incompatibilities
Keep away from strong acids, strong oxidizing agents, halogens, sulfur, phosphorus.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use extinguishing media most appropriate for the surrounding fire.
Hazards
Dusts at sufficient concentrations can form explosive mixtures with air.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
May cause irritation.
   Skin
May cause irritation.
   Eyes
May cause 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.
   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 lids. Get medical aid.

Transport.