LANTHANUM HYDROXIDE
Synonym(s):Lanthanum hydroxide;Lanthanum trihydroxide;Lanthanum(III) hydroxide
- CAS NO.：14507-19-8
- Empirical Formula: H3LaO3
- Molecular Weight: 189.93
- MDL number: MFCD00016160
- EINECS: 238-510-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-04 14:24:40
What is LANTHANUM HYDROXIDE?
Chemical properties
white, amorphous precipitate; absorbs CO2 [MER06]
Physical properties
White amorphous solid; decomposes on heating; insoluble in water.
The Uses of LANTHANUM HYDROXIDE
Lanthanum hydroxide is used to prepare other lanthanum salts.
The Uses of LANTHANUM HYDROXIDE
Lanthanum(III) hydroxide is used in three way catalyst, glass, ceramic and electronic industry.
Preparation
Lanthanum hydroxide is precipitated by adding excess of caustic soda, caustic potash or ammonia to an aqueous solution of a La3+ salt, such as LaCl3, La(NO3)3 or La(SO4)3:
La3+ + 3OHˉ → La(OH)3
.
Flammability and Explosibility
Non flammable
Properties of LANTHANUM HYDROXIDE
| Melting point: | decomposes [STR93] |
| Density | 4.27[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Powder |
| color | White |
| Water Solubility | Insoluble in water. Soluble in strong acids. |
| Solubility Product Constant (Ksp) | pKsp: 18.7 |
| CAS DataBase Reference | 14507-19-8(CAS DataBase Reference) |
| EPA Substance Registry System | Lanthanum hydroxide (La(OH)3) (14507-19-8) |
Safety information for LANTHANUM HYDROXIDE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P310:Immediately call a POISON CENTER or doctor/physician. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for LANTHANUM HYDROXIDE
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