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Potassium heptafluorotantalate is an inorganic compound with the formula K 2 [TaF 7]. It is the potassium salt of the heptafluorotantalate anion [TaF 7] 2−. This white, water-soluble solid is an intermediate in the purification of tantalum from its ores and is the precursor to the metal. [2]
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.
Tantalum pentoxide, also known as tantalum(V) oxide, is the inorganic compound with the formula Ta 2 O 5. It is a white solid that is insoluble in all solvents but is attacked by strong bases and hydrofluoric acid. Ta 2 O 5 is an inert material with a high refractive index and low absorption (i.e. colourless), which makes it useful for coatings ...
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
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 ...
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]
Anionic halide compounds of niobium are well known, owing in part to the Lewis acidity of the pentahalides. The most important is [NbF 7] 2−, an intermediate in the separation of Nb and Ta from the ores. [55] This heptafluoride tends to form the oxopentafluoride more readily than does the tantalum compound.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/(100 mL)), unless shown otherwise. The substances are listed in alphabetical order.