A salt or compound containing fluorine and tantalum (a dense metal), used in specialized chemical and metallurgical applications.
Compound of 'fluoro-' plus 'tantalate' (a salt of tantalic acid), coined in 20th-century inorganic chemistry as tantalum compounds became industrially important.
Tantalum is one of the rarest and most corrosion-resistant metals on Earth, and fluotantalate compounds exploit both fluorine and tantalum's extreme reactivity to create compounds useful in nuclear and aerospace engineering.
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