Indium powder assay [Indium content test]

Detection/Consultation (Wang Li)
In 1999, Reich and Richter of Germany used spectroscopic methods to study sphalerite and discovered a new element, indium. After thallium was discovered and obtained, Reich, a physics professor at the Freiberg School of Mining in Germany, was interested in some properties of thallium and hoped to obtain enough metal for experimental research. He began searching for the metal in the zinc mines produced in Freiburg's Schimmannersfüst. The main components of this
ore
are arsenic
pyrite
, sphalerite, chalcocite, silica,
manganese
,
Copper
and a small amount of tin,
cadmium
etc. Reich thinks it may also contain thallium. Although the experiment took a lot of time, he did not obtain the desired elements. But he got a straw-yellow sediment of unknown composition. He thought it was a sulfide of a new element.