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Samarium-149 is an observationally stable isotope of samarium (predicted to decay, but no decays have ever been observed, giving it a half-life at least several orders of magnitude longer than the age of the universe), and a product of the decay chain from the fission product 149 Nd (yield 1.0888%).
Bahasa Indonesia; Italiano; עברית ... Pages in category "Samarium compounds" The following 8 pages are in this category, out of 8 total. This list may not ...
Bahasa Indonesia; ... Pages in category "Samarium" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...
Bahasa Indonesia; Македонски ... Pages in category "Isotopes of samarium" The following 64 pages are in this category, out of 64 total. This list may not ...
Samarium(III) iodide is a yellow powder that is unstable in air and decomposes in water . [1] When heated with metallic samarium, it forms samarium diiodide: [4] 2SmI 3 + Sm → 3 SmI 2. Reduction by hydrogen also affords samarium diiodide upon heating: 2 SmI 3 + H 2 → 2 SmI 2 + 2 HI
Reduction of samarium(III) chloride with samarium metal in a vacuum at a temperature of 800 °C to 900 °C, or with hydrogen gas at 350 °C yields samarium(II) chloride: [1] 2 SmCl 3 + Sm → 3 SmCl 2 2 SmCl 3 + H 2 → 2 SmCl 2 + 2 HCl. Samarium(II) chloride can also be prepared by reducing samarium(III) chloride with lithium metal/naphthalene ...
The chemical element samarium was first isolated from a specimen of samarskite in 1879. Samarium was named after samarskite which was named for the Russian mine official, Colonel Vasili Samarsky-Bykhovets (1803–1870). [4] Samarskite-(Yb) was first described in 2004 for an occurrence in the South Platte Pegmatite District, Jefferson County ...
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