Tellurium, odorless, silvery white color crystalline solid material, has no reaction with water or non-oxidative acid but react violently with the halogens and produce the tellurium halides, is soluble in nitric acid, aqua regia, potassium hydroxide, potassium cyanide solution, but insoluble in water and neutral solvent. It can produce two tellurium oxides when burning in the air or oxygen, but without reaction with hydrogen in high temperature.
High purity tellurium of 99.999%, 99.9999% and 99.99999% ( 5N 6N 7N) by vacuum distillation and zone refining is primarily used in the manufacturing of II-VI compound semiconductor materials, piezoelectric crystals, cooling elements, thermoelectric converting elements, refrigerating components, solar cell, gas sensitivity, thermal, pressure-sensitive and light-sensitive infrared and γ-ray detectors etc nuclear radiation detection and other basic materials etc.High Purity Tellurium at Western Minmetals (SC) Corporation with purity 99.999% 99.9999%, 99.99999% 5N 6N 7N purity is in size of shot, lump, chunk, bar and crystal or customized specification can be delivered, which is packed in composite aluminum bag with argon gas filled protection, carton box outside.
Tellurium Powder, Tellurium Granule, Tellurium Shot, with purity of 99.9%, 99.99% and 99.999% 3N 4N 5N, silvery-white metallic luster, are primarily used for the producing of tellurium compounds, catalyst, and in the electronics industry and metallurgical applications. Tellurium granule or shot is mainly used for chemical elements analysis and as additive for metallurgical smelting.
No. | Item | Standard Specification | ||||
1 | Selenium ≥% | 4N | 5N | 5N | 7N | |
99.99 | 99.999 | 99.999 | 99.9999 | |||
2 | Impurity PPMMax Each | Ag | 1.0 | 0.2 | 0.5 | 0.05 |
Al | 5.0 | 0.5 | 0.5 | 0.05 | ||
Fe | 10 | 0.5 | 0.5 | 0.05 | ||
Mg | 5.0 | 0.5 | 0.5 | 0.05 | ||
Ni | 2.0 | 0.2 | 0.5 | 0.05 | ||
Pb | 5.0 | 0.5 | 1.0 | 0.10 | ||
Te | 10 | 0.5 | 1.0 | 0.10 | ||
Cu | 2.0 | 0.2 | 1.0 | 0.10 | ||
Cd | 5.0 | 0.2 | 0.2 | 0.02 | ||
Bi | 5.0 | 0.5 | 0.2 | 0.02 | ||
In | - | 0.5 | 0.2 | - | ||
Sb/Ca/Hg/Mn | 5 | - | - | - | ||
Total | 100ppm | 10ppm | 10ppm | 1ppm | ||
3 | Size | -100mesh atomized | 1-5mm shot, 1-10mm lump | |||
4 | Packing | 1kg in polyethylene bottle, carton box outside |