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Lead scandium tantalate (PST) is a mixed oxide of lead, scandium, and tantalum.It has the formula Pb(Sc 0.5 Ta 0.5)O 3.It is a ceramic material with a perovskite structure, [1] where the Sc and Ta atoms at the B site have an arrangement that is intermediate between ordered and disordered configurations, and can be fine-tuned with thermal treatment. [2]
The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal.It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides.
Many oxides of tantalum are called tantalates. They are viewed as derivatives of "tantalic acid", hypothetic compounds with the formulas Ta 2 O 5 ·nH 2 O [ 1 ] or HTaO 3 [ 2 ] ). Examples of such tantalates are lithium tantalate (LiTaO 3 ), lutetium tantalate (LuTaO 4 ), neodymium tantalate (NdTaO 4 ) and lead scandium tantalate (PST or Pb ...
With the addition of squarate or perchlorate, the tantalum complex dimerises in acetonitrile, with their respective chelating ligands bridging the Ta centres. These seven-coordinate complexes of the form TaMe 3 L 2 , where L is a bidentate monoanion, are markedly more thermally stable than their precursor, decomposing in the range 80 - 120°C.
The Codex Sinaiticus (Shelfmark: London, British Library, Add MS 43725), designated by siglum א [Aleph] or 01 (in the Gregory-Aland numbering of New Testament manuscripts), δ 2 (in the von Soden numbering of New Testament manuscripts), also called Sinai Bible, is a fourth-century Christian manuscript of a Greek Bible, containing the majority of the Greek Old Testament, including the ...
Leningrad/Petrograd Codex text sample, portions of Exodus 15:21-16:3. A Hebrew Bible manuscript is a handwritten copy of a portion of the text of the Hebrew Bible (Tanakh) made on papyrus, parchment, or paper, and written in the Hebrew language (some of the biblical text and notations may be in Aramaic).
Parker’s statements — in his remarks to Enlow and in his written opinion — are the latest examples of Republican politicians and elected officials embracing the Christian nationalist view ...
The Codex Gigas opened to the page with the distinctive portrait of the Devil from which the text received its byname, the Devil's Bible. [1]The Codex Gigas ("Giant Book"; Czech: Obří kniha) is the largest extant medieval illuminated manuscript in the world, at a length of 92 cm (36 in). [2]