Basic information
- CAS
13709-38-1- Standard SMILES
[F-].[F-].[F-].[La+3]- InChIKey
BYMUNNMMXKDFEZ-UHFFFAOYSA-K- Molecular formula
- F3La
- Average molar mass
- 195.9007 g/mol
- Monoisotopic mass
- 195.901572
Overview
See also: Lanthanum trifluoride (preferred).
Names & identifiers
- Preferred name
- fluoride, fluoride, La, fluoride
- IUPAC
- lanthanum(3+) trifluoride
- English name
- Lanthanum Fluoride
- Molecular formula
- F3La
- Molecular weight
- 195.9
Names & synonyms
F3LaSCHEMBL125133fluoride, fluoride, La, fluorideBYMUNNMMXKDFEZ-UHFFFAOYSA-KSBB091936AKOS024256509L0436NS00085997F006706LaF3LANTHANUM(III) FLUORIDEanthanum(III) fL
Show more names
LANTHANUM FLUORIDELanthanumfluoride2Lanthanumfluoride1Lanthanum FlourideLanthanum trifluorideLANTHANUMFLUORIDE,LUMPlanthanumfluoride(laf3)
Database identifiers
- CAS
13709-38-1- PubChem CID
- 9837037
- Nikkaji
- J96.334H
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 4
- Formal charge
- 0
- Complexity
- 0
Physicochemical properties
- Melting point
- 1493 °C · 1493 °C
- Density
- 5.936 g/mL · 5.936 g/mL at 25 °C(lit.)
- refractive index
- 1.6029 · 1.6029
- solubility
- 2 O, · insoluble in H2O, acid solutions
- form
- powder
- color
- White
- Specific Gravity
- 5.936 · 5.936
- Water Solubility
- Soluble in strong mineral acids. Insoluble in water.
- Sensitive
- Hygroscopic
- Crystal Structure
- 3 type · LaF3 type
- crystal system
- Three sides
- Space group
- 3 c1 · P3c1
- Lattice constant
- a/nm
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319
- Precautionary statements
- 264 · P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Safety data
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- 3288
- hs_code
- 28469033
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- hazard_note
- Hygroscopic
- safety_code
- 22-24/25
- hazard_class
- 6.1
- Storage Class
- 11 - Combustible Solids
- packing_group
- III
- Hazard statements
- H315-H319
- REACH Registrations
- Active
- Precautionary statements
- P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Chemistry & industry
Applications
DescriptionLanthanum trifluorides (chemical formula: LaF3) is a kind of high-melting, ionic compound of lanthanum and fluorine. It is a component of the multimetal fluoride glass such as ZBLAN. It is majorly used as a solid membrane electrode for manufacturing the into fluoride sensitive (F-1) Ion-selective probes. It also has applications in fiber optics, fluorescent lamps and radiation applications. Lanthanum fluoride can also be doped with Nd3+ and has special applications as a scintillating material.
UsesLanthanum fluoride is used in phosphor lamp coating. Mixed with other rare earths, it is used in carbon arc electrodes and lasers. Also, the fluoride is used in the production of lanthanum metal, an intermediate step in the manufacture of high purity metal. Lanthanum fluoride, is mainly applied in specialty glass, water treatment and catalyst, and also as the main raw materials for making Lanthanum Metal. Lanthanum Fluoride (LaF3) is an essential component of a heavy Fluoride glass named ZBLAN. This glass has superior transmittance in the infrared range and is therefore used for fiber-optical communication systems. Mixed with Europium Fluoride, it is also applied in the crystal membrane of Fluoride ion-selective electrodes.
UsesLanthanum fluoride, anhydrous is employed extensively in the preparation and study of fluoride glasses.
UsesLanthanum fluoride is a white powder used to coat the inside of phosphorus lamps and lasers.
Preparation methods
PreparationLanthanum fluoride may be precipitated by adding hydrofluoric acid to an aqueous solution of lanthanum nitrate or chloride: La(NO3)3 + 3HF → LaF3 + 3HNO3 The compound also can be made by heating lanthanum oxide with ammonium fluoride in hydrofluoric acid at 300 to 400°C. Ammonium fluoride released in the reaction sublimes at this temperature: La2O3 + 6NH4F•6HF → 2LaF3 + 6NH4F↑ + 3H2O↑ Anhydrous lanthanum fluoride also may be made by passing dry hydrogen fluoride over lanthanum oxide. This process, however, produces trace amounts of lanthanum oxyfluoride, LaOF. Highly purified material may be obtained by passing dry purified HF over molten fluoride in a platinum crucible.
Related reactions
18 records
Compound notes
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