Telluric acid dihydrate (H2TeO4•2H2O)-Crystalline

(Telluric acid dihydrate (H2TeO4•2H2O)-Crystalline)

CAS: 13451-14-4 Molecular Formula: H2TeO4•2H2O Purity: 99% Products Code: TR Specification Model: -100 Mesh.etc Hazardous Class: Class 6.1 EINECS No.: 232-267-6 UN No.: UN3284 Package Class: PGIII

Characteristic

Telluric acid is a chemical compound with the formula Te(OH)6. It is a white solid made up of octahedral Te(OH)6 molecules which persist in aqueous solution. There are two forms, rhombohedral and monoclinic, and both contain octahedral Te(OH)6 molecules.Telluric acid is a weak acid which is dibasic, forming tellurate salts with strong bases and hydrogen tellurate salts with weaker bases or upon hydrolysis of tellurates in water.

Chemical formula:H6O6Te

Molar mass:229.64 g/mol

Appearance:White monoclinic crystals

Density:3.07 g/cm3

Melting point:136 °C (277 °F; 409 K)

Solubility in water:50.1 g/100 ml at 30 °C

Acidity (pKa):7.68, 11.0 at 18 °C Conjugate base Tellurate

Application

Telluric acid dihydrate is used in the preparation of tellurium nanorods through hydrazine-driven reduction, which finds application in solar cells, thermoelectric and topological insulators. It is also involved in the preparation of tellurium metal by reacting with the solution of potassium thiocyanate.

(Telluric acid dihydrate (H2TeO4•2H2O)-Crystalline)