Lanthanum fluoride

  • Tysonite
  • Lanthanum trifluoride
Formula
LaF3
Structure
Description
white hexagonal crystals, hygroscopic

Registry Numbers and Inventories.
CAS
13709-38-1
EC (EINECS/ELINCS)
237-252-8
Beilstein/Gmelin
1744 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
F3La
Formula mass
195.90
Melting point, °C
1491.85 - 1507.85
Boiling point, °C
2327
Vapor pressure, mmHg
0.00975 (1241 C)
Density
5.9360 g/cm3
Solubility in water
Insoluble
Thermal expansion
0.0000547/K
Heat of fusion
33.50 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.
Respirators
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong acids.
Decomposition
Hydrogen fluoride.

Fire.
Fire fighting
Wear approved SCBA in full pressure-demand and full protective gear. In case of fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Exposure effects
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
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.

Transport.