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7440-27-9 - Terbium foil, 0.025mm (0.001in) thick, 99.9% (REO) - 12431 - Alfa Aesar

12431 Terbium foil, 0.025mm (0.001in) thick, 99.9% (REO)

CAS Number

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Terbium foil, 0.025mm (0.001in) thick, 99.9% (REO)


Chemical Properties

≈0.13g/25x25mm, Packaged under argon
Insoluble in water.


Terbium foil is used in the semiconductor industry as a dopant. It is also used in Physical Vapor Deposition (PVD) processes, including thermal and electron-beam (e-beam) evaporation, for the preparation of thin films.


Hygroscopic. Air sensitive. Incompatible with halogens.

Literature References

S.Lahiri; D.Nayak; A.Ramaswami; S.Manohar. Production and separation of carrier-free lutetium, ytterbium and thulium radionuclides from 75 MeV 12C6+ irradiated terbium foil target. Journal of Radioanalytical and Nuclear Chemistry. 2000, 243, (3), 701-705


E.Lebowitz; M.W.Greene. The production of 157dy for medical use. The International Journal of Applied Radiation and Isotopes. 1971, 22, (12), 791-790

GHS Hazard and Precautionary Statements

Hazard Statements: H228-H260

Flammable solid. In contact with water releases flammable gases which may ignite spontaneously.

Precautionary Statements: P210-P231+P232-P280-P240-P241-P233-P370+P378c-P335+P334-P402+P404-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Handle under inert gas. Protect from moisture. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. Keep container tightly closed. In case of fire: Use for extinction: CO2, sand, extinguishing powder. Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. Store in a dry place. Store in a closed container. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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