LANTHANUM FLUORIDE (RE Element base)

LANTHANUM FLUORIDE (RE Element base) - Names and Identifiers

Name	Lanthanum(III) fluoride
Synonyms	LaF3 Lanthanumfluoride1 Lanthanumfluoride2 lanthanum trifluoride lanthanumfluoride(laf3) Lanthanum(III) fluoride Lanthanum fluoride (LaF3) LANTHANUM FLUORIDE (RE Element base) LanthanumfluorideanhydrousREOwhitepowder Lanthanum(III) fluoride anhydrous, powder
CAS	13709-38-1
EINECS	237-252-8
InChI	InChI=1/3FH.La/h3*1H;/q;;;+3/p-3
InChIKey	BYMUNNMMXKDFEZ-UHFFFAOYSA-K

LANTHANUM FLUORIDE (RE Element base) - Physico-chemical Properties

Molecular Formula	F3La
Molar Mass	195.9
Density	5.936g/mLat 25°C(lit.)
Melting Point	1493 °C
Boling Point	19.5°C at 760 mmHg
Water Solubility	Soluble in strong mineral acids. Insoluble in water.
Vapor Presure	922mmHg at 25°C
Appearance	powder
Specific Gravity	5.936
Color	White
Exposure Limit	ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stability	hygroscopic
Sensitive	Hygroscopic
Refractive Index	1.6029
Physical and Chemical Properties	White powder, density 5.936, melting point 1493 ℃, boiling point 2330 ℃, insoluble in water, insoluble in hydrochloric acid, nitric acid and sulfuric acid, but soluble in perchloric acid. Hygroscopic in the air, more stable. Generation of NH4F from ammonium fluoride? LaF3 insoluble double salt.
Use	Material for drawing lanthanum fluoride single crystal

LANTHANUM FLUORIDE (RE Element base) - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes.
UN IDs	3288
WGK Germany	3
TSCA	Yes
HS Code	28469033
Hazard Note	Hygroscopic
Hazard Class	6.1
Packing Group	III

LANTHANUM FLUORIDE (RE Element base) - Nature

Open Data Verified Data

white powder, density 936, melting point 1493 ℃, boiling point 2330 ℃, insoluble in water, insoluble in hydrochloric acid, nitric acid and sulfuric acid, but soluble in perchloric acid. Hygroscopic in the air, more stable. Generation of NH4 F.LaF3 insoluble double salt with ammonium fluoride.

Last Update：2025-06-10 22:55:16

LANTHANUM FLUORIDE (RE Element base) - Preparation Method

Open Data Verified Data

lanthanum oxide was dissolved in hydrochloric acid and diluted to 100-48% g/L (based on La2 03), and the solution was heated to 70-80 °c and precipitated with hydrofluoric acid. The precipitate was washed, filtered, dried, pulverized and vacuum dehydrated to give lanthanum fluoride.

Last Update：2022-01-01 11:05:06

LANTHANUM FLUORIDE (RE Element base) - Application

Open Data Verified Data

Scintillators, rare earth crystal laser materials, fluoride glass optical fibers and rare earth infrared glass for the preparation of modern medical image display technology and nuclear science requirements. In the illumination light source for the fabrication of arc lamp carbon electrodes. In chemical analysis for the manufacture of fluoride ion selective electrode. In the metallurgical industry for the manufacture of special alloys and electrolytic production of metal lanthanum.

Last Update：2025-08-19 16:24:40

LANTHANUM FLUORIDE (RE Element base) - Safety

Open Data Verified Data

toxicity and protection see cerium oxide products.

Last Update：2022-01-01 11:05:06

LANTHANUM FLUORIDE (RE Element base) - Reference Information

EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Application	lanthanum fluoride is mainly used for the preparation of scintillator and rare earth crystal laser materials required by modern medical image display technology and nuclear science, fluoride glass optical fiber and rare earth infrared glass, arc lamp carbon electrode of illumination light source, fluoride ion selective electrode in chemical analysis, and for the manufacture of special alloy, electrolytic production of metal Lanthanum and drawing lanthanum fluoride single crystal, etc. scintillators, rare earth crystal laser materials, fluoride glass optical fibers and rare earth infrared glass for the preparation of modern medical image display technology and nuclear science requirements. In the illumination light source for the fabrication of arc lamp carbon electrodes. In chemical analysis for the manufacture of fluoride ion selective electrode. In the metallurgical industry for the manufacture of special alloys and electrolytic production of metal lanthanum. materials used for drawing lanthanum fluoride single crystal widely used in the preparation and research of fluorinated glass.
toxicity	see cerium oxide products.
production method	chemical method lanthanum oxide is dissolved in hydrochloric acid and diluted to 100~150g/L (based on La2O3), the solution was heated to 70-80 °c and precipitated with 48% hydrofluoric acid. The precipitate was washed, filtered, dried, pulverized and vacuum dehydrated to give lanthanum fluoride.
category	toxic substances
flammability hazard characteristics	non-combustible; Toxic smoke containing lanthanum oxide and chloride generated in the fire scene; easy hydrolysis to produce hydrofluoric acid
storage and transportation characteristics	warehouse ventilation and low-temperature drying; Separate from food storage and transportation
fire extinguishing agent	carbon dioxide, sand