🔬 Discovery

Erbium

Erbio (Er, Z=68)

Date
1843 · confidence high
Place
Stockholm, Sweden
Credited to
Carl Gustaf Mosander
People
👤 Carl Gustaf Mosander1797–1858
Field
Matter & energy

What was discovered

Mosander separated erbia from Gadolin's yttria in the same series of studies that produced terbium.

Fourth element named after Ytterby.

What it led to

  • Erbium-doped fibre amplifiers (EDFA), the backbone of the Internet
  • Erbium lasers for dermatology and dentistry
  • Pink glass

Built on

  • Gadolin's yttria
  • Fractional precipitation

Made possible

  • EDFA amplifier
  • Er:YAG laser

Links