Terbium 99.9% 10 grams

Terbium 99.9% 10 grams

 

Allied Chemicals GmbH (AL-GMBH) is a leading Specialty Chemicals & Science Based Company in Germany. We deliver an extensive range of high quality Specialty Chemicals & Allied Products to several sectors.

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Available for sale here is Terbium 99.9% 10 grams:

Terbium is a chemical element with the atomic number 65 and chemical symbol Tb, classified as a rare-earth metal in the lanthanide series of the periodic table. It appears as a soft, silvery-gray metal that is malleable, ductile, and soft enough to be cut with a knife, with two known crystal modifications that transform at 1289°C.

Discovered in 1843 by Swedish chemist Carl Gustaf Mosander, terbium was isolated from yttrium compounds derived from the mineral yttria (yttrium oxide) found near the village of Ytterby, Sweden, after which the element is named.

It occurs naturally in minerals such as monazite (up to 0.03% terbia), xenotime, cerite, gadolinite, and euxenite (up to 1% terbia), from which it is extracted as a byproduct of rare-earth processing. Terbium has 37 known isotopes, with terbium-159 being the only stable isotope and comprising 100% of natural samples; its atomic mass is 158.92535 u.

Key physical properties include a melting point of 1356°C, a boiling point of 3123°C, and a density of 8.234 g/cm³ at room temperature, where it exists as a solid reasonably stable in air but prone to oxidation over time. Chemically, terbium is reactive with water and acids, forming salts, and it burns readily when ignited to produce terbia.

Notable applications leverage its optical and magnetic properties: terbium compounds, particularly green-emitting phosphors like terbium-doped yttrium aluminum garnet, are essential in fluorescent lamps, color television tubes, and LED displays as part of red-green-blue phosphor systems.

Additionally, sodium terbium borate is used in solid-state devices, and terbium oxide stabilizes zirconia in high-temperature fuel cells, while alloys with terbium enhance magnetostrictive materials for actuators and sensors in high-tech applications like lasers and batteries.

Terbium has no known biological role in living organisms and exhibits low toxicity, though inhalation or ingestion of its dust or compounds may cause fibrosis or irritation similar to other rare-earth metals; it is handled with standard precautions in laboratory settings.

As a critical rare-earth element, terbium’s supply is vulnerable due to concentrated global production, primarily in China (over 70% as of 2024), with recent export controls in 2025 underscoring its importance in modern technologies from renewable energy to electronics.

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