Terbium(III) fluoride

Terbium(III) fluoride is an inorganic compound with chemical formula TbF₃. It is hard to dissolve in water.[3] It can be produced by reacting terbium(III) carbonate and 40% hydrofluoric acid at 40°C.[4]

Terbium(III) fluoride

Names
Other names terbium trifluoride
Identifiers
CAS Number	13708-63-9
3D model (JSmol)	Interactive image
ChemSpider	75496
ECHA InfoCard	100.033.846
EC Number	237-247-0
PubChem CID	83673
CompTox Dashboard (EPA)	DTXSID8065589
InChI InChI=1S/3FH.Tb/h3*1H;/q;;;+3/p-3 Key: LKNRQYTYDPPUOX-UHFFFAOYSA-K
SMILES F[Tb](F)F
Properties
Chemical formula	TbF3
Molar mass	215.92
Melting point	1172℃[1]
Hazards
Lethal dose or concentration (LD, LC):
LD50 (median dose)	10 g/kg（rabbit）[2]
Related compounds
Other anions	terbium(III) chloride terbium(III) br/omide terbium(III) iodide
Other cations	gadolinium(III) fluoride dysprosium(III) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Uses

Terbium(III) fluoride is used for producing metallic terbium.[5]

2 TbF₃ + 3 Ca → 3 CaF₂ + 2 Tb

References

1. 无机化学丛书 第七卷 钪 稀土元素. 科学出版社. pp 212. 表 22.24 无水卤化物的物理常数.
2. 雷春文. 氟化钇、铽、镱和镨的卫生标准[J]. 稀土信息, 1995(Z1):27-27.
3. 氟化铽. Chemical Book. [2018-12-10]
4. 王亚军, 樊宏伟. 氟化铽的沉淀方法及组成研究[J]. 化学世界, 1999(11):575-578.
5. Schmidt, F. A., Peterson, D. T., & Wheelock, J. T. (1986). U.S. Patent No. 4,612,047. Washington, DC: U.S. Patent and Trademark Office.