Strontium 99.9%

Strontium 99.9%

Allied Chemicals GmbH (AL-GMBH) is a leading Specialty Chemicals & Science Based Company in Germany. With over 20 years of experience supplying to the manufacturing industry internationally, we deliver an extensive range of high quality Specialty Chemicals & Allied Products to several sectors.

The chemical preparation of all our products are synthesized. These substances possesses sterile effect, so you must be fully aware of what you are purchasing hence there’s no prejudice involved in the offer and acceptance.

Available for sale here is Strontium 99.9% :

Strontium is a chemical element with the symbol Sr and atomic number 38, classified as an alkaline earth metal in group 2 of the periodic table. It appears as a soft, silvery-white metallic solid at room temperature, though it rapidly tarnishes to a yellowish oxide upon exposure to air due to its high reactivity, and it ignites spontaneously in moist air while reacting vigorously with water to produce strontium hydroxide and hydrogen gas.

Strontium was first identified in 1790 by Adair Crawford from the mineral strontianite found near Strontian, Scotland, with the element isolated in its metallic form by Humphry Davy through electrolysis in 1808.

It occurs naturally at low concentrations in the Earth’s crust (approximately 0.0384% by mass, ranking 15th in abundance among elements), primarily in the minerals celestite (strontium sulfate) and strontianite (strontium carbonate), with commercial production dominated by mining celestite in countries like China, Spain, and Mexico.

The element’s applications leverage its chemical properties, including the production of vivid red flames in pyrotechnics from strontium salts, incorporation into zinc-manganese ferrites for permanent magnets, and alloying with aluminum and magnesium for aircraft components due to enhanced creep resistance. Medically, the beta-emitting radioisotope strontium-89 treats bone pain in metastatic cancer by localizing in bone tissue analogous to calcium.

This strontium doesn’t glow in ampule at all. Pure strontium metal is exceptionally difficult to get it to stay metallic looking. The high-end glove boxes where it’s prepared may boast of oxygen levels in the parts per billion range, which is all well and good, but the metal is also tarnished by traces of nitrogen and carbon dioxide – two gases which are not chased away with the same gusto as they don’t present a problem for most metals. Of course, “most” being the keyword here… strontium is extremely sensitive to basically anything else.

Strontium is a soft, silvery-white alkaline earth metal that rapidly tarnishes in moist air, forming a yellow oxide layer on its surface. Its density at 20 °C is 2.64 g/cm³, making it lighter than many common metals like iron or copper. The element melts at 777 °C and boils at 1382 °C under standard pressure.

Strontium adopts a face-centered cubic crystal structure at room temperature, with a lattice parameter of approximately 6.086 Å. The metallic atomic radius is about 215 pm, reflecting its position in group 2 of the periodic table, where atomic sizes increase down the group due to additional electron shells.[8] It is malleable and ductile, though its softness limits practical mechanical applications without alloying.

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