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Potassium heptafluorotantalate is an intermediate in the industrial production of metallic tantalum. Its production involves leaching tantalum ores, such as columbite and tantalite, with hydrofluoric acid and sulfuric acid to produce the water-soluble hydrogen heptafluorotantalate. [2] Ta 2 O 5 + 14 HF → 2 H 2 [TaF 7] + 5 H 2 O
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(Sc x Ta 1-x ...
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.
Lithium tantalate is the inorganic compound with the formula Li Ta O 3. It is a white, diamagnetic, water-insoluble solid. The compound has the perovskite structure. It has optical, piezoelectric, and pyroelectric properties. Considerable information is available from commercial sources about this material. [2]
Tantalum(V) compounds (6 P) Pages in category "Tantalum compounds" The following 16 pages are in this category, out of 16 total. This list may not reflect recent ...
These arise from the salt metathesis reactions of sodium cyclopentadienide and tantalum pentachloride. An example of this is the first transition metal trihydride, Cp 2 TaH 3. More soluble and better developed are derivatives of pentamethylcyclopentadiene such as Cp*TaCl 4, Cp* 2 TaCl 2, and Cp* 2 TaH 3. [4] Tantalum Alkylidene Olefin Metathesis
Tantalocene trihydride, or bis(η 5-cyclopentadienyl)trihydridotantalum, is an organotanalum compound in the family of bent metallocenes consisting of two cyclopentadienyl rings and three hydrides coordinated to a tantalum center. Its formula is TaCp 2 H 3, and it is a white crystalline compound that is sensitive to air. [1]
When tantalum enrichment is observed, it is probably due to loss of more water-soluble elements in aerosols in the clouds. [87] Pollution linked to human use of the element has not been detected. [88] Tantalum appears to be a very conservative element in biogeochemical terms, but its cycling and reactivity are still not fully understood.