Search results
Results from the WOW.Com Content Network
Tantalum is a chemical element; it has symbol Ta and atomic number 73. Previously known as tantalium, [citation needed] it is named after Tantalus, a figure in Greek ...
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 ...
[119] [120] [121] For oral administration the toxicity is lower; a study with rats yielded a LD 50 after seven days of 940 mg/kg. [119] Compounds containing tantalum are rarely encountered in the laboratory, and it and its compounds rarely cause injury, and when they do, the injuries are normally rashes. [19]
Treatment of tantalum pentachloride with hexamethylbenzene (C 6 Me 6), aluminium, and aluminium trichloride gives [M(η 6-C 6 Me 6)AlCl 4] 2. [7] Tantalum-alkyne complexes [8] catalyze cyclotrimerizations. [9] [10] Some tantalum-alkyne complexes are precursors to allylic alcohols. [11] Tantalacyclopropenes are invoked as intermediates.
This altered zone, as sampled by Channel 1, contains the highest tantalum grades found to date in the exposed pegmatite. When considering the CIZ as outlined in Table 1, the total distance between ...
AOL
Today's Wordle Answer for #1264 on Wednesday, December 4, 2024. Today's Wordle answer on Wednesday, December 4, 2024, is CRYPT. How'd you do? Next: Catch up on other Wordle answers from this week.
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.