Element 73 · Transition Metal
Tantalum
Tantalum makes the capacitors in your smartphone — small, reliable, and once associated with conflict mineral concerns.
Element Facts
SYMBOL
Ta
ATOMIC NO.
73
ATOMIC WEIGHT
180.95
CATEGORY
Transition Metal
PERIOD
Period 6
GROUP
Group 5
Historical Uses
Tantalum was discovered in 1802 by Swedish chemist Anders Gustaf Ekeberg in minerals from Sweden and Finland. He named it after Tantalus, the figure from Greek mythology condemned to stand in a pool of water that receded whenever he tried to drink — a metaphor for the frustrating difficulty of dissolving tantalite mineral in acid.
For much of the 19th century, tantalum was confused with niobium, which had been discovered at almost the same time. The two elements are chemically very similar and naturally occur together. In 1866, Swiss chemist Jean Charles Galissard de Marignac finally demonstrated they were distinct elements by careful chemical separation.
Early 20th century applications included tantalum wire for incandescent lamp filaments (before tungsten proved superior) and surgical instruments. Its complete biocompatibility — the human body does not react to tantalum — made it ideal for surgical sutures, bone repair plates, and skull reconstruction. The modern tantalum industry is dominated by capacitors used in electronics: tantalum electrolytic capacitors are compact, reliable, and found in virtually every smartphone, laptop, and medical device.
Overview
Tantalum is element 73, a hard, blue-grey transition metal with extreme corrosion resistance and high melting point. Most tantalum production comes from coltan ore (columbite-tantalite), with significant supply previously from conflict zones in Central Africa — now subject to strict supply chain due diligence under the EU Conflict Minerals Regulation.
Current Uses
Tantalum capacitors in smartphones, laptops, and high-reliability electronics — small, stable, and irreplaceable. Aerospace superalloys for jet engine turbine blades. Surgical implants and medical instruments (excellent biocompatibility). Chemical plant equipment.
Not Commercially Viable for Scrap
Why QuickStop Metals doesn’t buy Tantalum:
Tantalum recovery from spent capacitors is performed only by specialist e-waste processors. The metal exists at very small percentages in finished electronics. No general scrap market.
Price Context
Tantalum prices around $250–400/kg with strong supply chain due diligence requirements.