Samarium trifluoride Chemical Properties

Melting point:

1306 °C

Boiling point:

2323 °C

Density 

6,928 g/cm³

solubility 

reacts with H2O

form 

Fine Crystalline Powder

Specific Gravity

6.928

color 

Slightly yellow

Water Solubility 

Soluble moderately in strong mineral acids. Insoluble in water.

Sensitive 

Hygroscopic

Crystal Structure

YF3 type

crystal system

Nogata

Space group

Pnma

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.668	0.706	0.441	90	90	90	0.208

Exposure limits

ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3

Stability:

hygroscopic

CAS DataBase Reference

13765-24-7(CAS DataBase Reference)

EPA Substance Registry System

Samarium fluoride (SmF3) (13765-24-7)

Safety Information

Hazard Codes 

Xi,T

Risk Statements 

36/37/38-32-23/24/25

Safety Statements 

37/39-26-45-36/37/39

RIDADR 

UN 3288

Hazard Note 

Irritant

TSCA 

TSCA listed

HazardClass 

6.1

PackingGroup 

III

HS Code 

28469000

MSDS

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Samarium trifluoride Usage And Synthesis

Uses

Samarium Fluoride has specialized uses in glass, phosphors, lasers, and thermoelectric devices. Samarium-doped Calcium Fluoride crystals were used as an active medium in one of the first solid-state lasers designed and constructed. These magnets are found in small motors, headphones, and high-end magnetic pickups for guitars and related musical instruments.

Chemical Properties

Samarium (III) fluoride is a yellow solid or odourless powder and slightly hygroscopic. It is insoluble in water. Workers should avoid open flame, moisture, and strong acids.

Uses

Samarium(III) fluoride is used as laboratory reagent, in optical glasses, structural ceramics, catalysts, electrical components and photo-optical material. It has specialized uses in phosphors, lasers, and thermoelectric devices.

Synthesis

In FK3000 enamel reaction tank, add 1000L of samarium chloride solution with the concentration of 0.23mol/L, the samarium chloride solution is heated to 93??, add 300L of ammonium bicarbonate solution with the concentration of 2.5mol/L, the precipitation reaction is completed in 3 hours, the heat preservation aging is completed in 1 hour, washing, filtration, and then get the samarium carbonate and samarium carbonate alkaline precipitate, in which the weight ratio of samarium carbonate to samarium carbonate alkaline is 4:1; in 1000L fluoride transformation tank, add 130L of water, and then make the precipitation into slurry with paddle under stirring condition. Add 130L water in 1000L fluoride transformation tank, modulate samarium carbonate and samarium carbonate precipitate into slurry, add 40% hydrofluoric acid 40kg fluoride into the slurry under stirring, fluoride temperature at 20??, control the endpoint acidity pH value of 1.5~2.0, and then continue to stir for 1 hour, then wash, filter, and centrifugal drying of samarium fluoride precipitate, and then dry in drying kiln at 200??. The samarium fluoride precipitation was washed, filtered, centrifuged and dried in the drying kiln at 200?? for 12 hours, and the center particle size of samarium fluoride product was 30.06μm.

Samarium trifluoride(13765-24-7)Related Product Information

• SAMARIUM
• SAMARIUM 2,4-PENTANEDIONATE
• SAMARIUM(III) ACETYLACETONATE DIHYDRATE
• SAMARIUM BROMIDE HEXAHYDRATE
• SAMARIUM CARBONATE
• Samarium oxide
• SAMARIUM(III) HYDROXIDE HYDRATE
• SAMARIUM CHLORIDE
• SAMARIUM CARBONATE
• Samarium nitrate
• SAMARIUM SULFATE
• SAMARIUM OXALATE
• SAMARIUM SULFATE
• SAMARIUM OXALATE
• SAMARIUM(III) CHLORIDE HEXAHYDRATE
• SAMARIUM BROMIDE
• SAMARIUM BORIDE
• SAMARIUM NITRATE, 99.9%