Terbium chloride

  • Terbium(III) chloride
  • Terbium trichloride
Formula
Cl3Tb
Structure
Description
White orthorhombic crystals, hygroscopic.
Uses
Activator for green phosphors used in color TV tubes. Used in special lasers and as a dopant in solid-state devices

Registry Numbers and Inventories.
CAS
10042-88-3
EC (EINECS/ELINCS)
233-132-4
RTECS
WY9100000
RTECS class
Mutagen; Primary Irritant
Merck
13,9087
Beilstein/Gmelin
2248 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Cl3Tb
Formula mass
265.27
Melting point, °C
588
Density
4.35 g/cm3 (25 C)

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Decomposition
Hydrogen chloride gas.

Fire.
Fire fighting
Extinguish using Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.
Health
0
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
   Inhalation
Material may be irritating to mucous membranes and upper respiratory tract.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.