What is copper telluride?

Copper telluride is a chemical with formula CuTe.

Copper telluride physicochemical properties

Density: 7.27

Melting point: 1127°C

Molecular Formula: Cu2Te

Molecular weight: 254.69200

Exact Mass: 255.76500

Appearance: Blue-black

Refractive index: 1.45

Storage condition: sealed in a cool dry place.

Stability: Not decompose when used and stored according to specifications. Insoluble in hydrochloric acid and sulfuric acid, soluble in bromine water.

Water solubility: Insoluble in water

Copper telluride powder specifications we can provide

Purity: 99.99%

Form: block, granule, powder

Packaging: bottled or vacuum sealed bag

Copper telluride granules characteristics

Copper telluride is a black crystalline powder that is stable in air at room temperature. Copper telluride is not only an important inorganic material, but also an excellent form of storage for telluride and copper resources. Cu telluride was generated by replacing Te with Cu in H2SO4 solution, resulting in the separation and considerable enrichment of telluride from many metal ions. 

Cu displaces Te, which can have either + 4 or + 6 valence to produce Cu2 Te, which is not affected by tellurium valence. In the presence of oxidants, copper telluride can react with acids or bases, which is the basis for the separation and recovery of Cu and Te. In short, tellurium is characteristic of recovering tellurium from solution by combining tellurium with copper at higher temperatures.

Copper telluride toxicity and ecology

Ecological data of copper telluride:

This substance may be hazardous to the environment and special attention should be paid to water bodies.

Copper telluride Safety Information

Safety Statement (Europe) : S22-S24/25

UN No.: UN 3288

WGK Germany: 3

Packaging Class: III

Hazard Class: 6.1(b)

Preparation of copper telluride

Electrolytic Cu and pure Te are placed in a crucible, covered with NaCl and KCl as a protective layer, and heated to melt.

Application of copper telluride

Mainly used in the field of precision semiconductor, photoelectric materials.