Producing Thallium (Tl)

Tl: Thallium

Crookes (UK) discovered in 1861, and Lamy (France) separated in 1862.

Abundance: 0.7%(in the earth's crust)

Thallium sulfate is recovered from residue of sulfide refinement.

TlSO4

Apply electric smelting

TlSO4 Tl + SO4