Tellurium

Tellurium, Te, is a metallic main group element, found in Group VIb of the periodic table.

Atomic Number : 52
Relative Atomic Mass : 127.6

Discovery

Tellurium was discovered by Muller von Reichenstein in 1782AD.
Tellurium was named by Klaproth in 1798AD.

Occurrence

Tellurium is relatively rare but occurs in trace amounts in pyrites.
Tellurium also occurs as Tetradymite, Bi2Te3.
Tellurium now extracted from the anode mud formed during the electrolytic refining of copper.

Extraction

Preparation

Manufacture

Properties

Tellurium occurs in at least two allotropic forms.

Reactions

Tellurium has similar chemical properties to Sulphur.

Uses

Tellurium is a component in some alloys of lead to increase its tensile strength.
Tellurium is used in the electroplating of silver to produce a dark finish.

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