81Tl
Thallium
2 stable isotopes
Stable isotopes

Thallium isotopes: ²⁰³Tl · ²⁰⁵Tl

Enriched stable isotopes of thallium (Tl, Z = 81): 2 isotopes with enrichment up to 99.91 at.% (²⁰⁵Tl). Chemical form: oxide, metal. Packaging from milligrams; every lot comes with a passport stating its isotopic and chemical composition.

Isotopes2
Max. enrichment99.91 at.%
Chemical purity> 99.99%
Formoxide, metal

Isotopes, enrichment and purity

Chemical form: oxide, metal · chemical purity: > 99.99 %
IsotopeEnrichment, at.%
²⁰³Tl98.25
²⁰⁵Tl99.91

Enrichment is the atomic fraction of the target isotope, %. Data are given according to the producer’s specification; the exact composition of a lot is stated in its passport. Availability, packaging and price on request. Export of isotope products is subject to export control requirements.

Applications of the isotopes

²⁰³Tltarget for thallium-201 production (myocardial perfusion imaging) and thallium-204 (beta sources for thickness gauges)
²⁰⁵Tlresearch (neutrino physics, nuclear data)

Reference information on typical applications. Please confirm the suitability of the isotope for your task (enrichment, chemical form, quantity) in your request.

Other elements

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