Lanthanum hydroxide

  • Lanthanum(III) hydroxide
  • Lanthanum trihydroxide
Formula
H3LaO3
Structure
Description
White amorphous solid

Registry Numbers and Inventories.
CAS
14507-19-8
EC (EINECS/ELINCS)
238-510-2
26 27 36/37/39 45
UN (DOT)
3262
Beilstein/Gmelin
24298 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
H3LaO3
Formula mass
189.93
Density
4.28 g/cm3
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing. Faceshield (8-inch minimum).
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
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.
Incompatibilities
Strong acids.
Decomposition
Nature of decomposition products not known.

Fire.
Fire fighting
Extinguish using Dry chemical powder. Carbon dioxide. Water Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
-
 
Flammability
0
 
 
Reactivity
1
 

Health.
Exposure effects
Corrosive. Causes burns.
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician immediately.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.

Transport.
UN number
3262
Response guide
Hazard class
8
Packing Group
II