2) Daim ntawv cog lus tsis pub lwm tus paub tuaj yeem kos npe
3) Xya hnub rov qab lav
Tseem ceeb tshaj: peb tuaj yeem muab tsis tau tsuas yog cov khoom lag luam, tab sis kev pabcuam kev daws teeb meem!
| Cov mis mos molecular | Bi2Te3 |
| Purity (%, min) | 99.999 ib |
| Cov duab | Cov hmoov dub |
| Cov impurities | (ppm, Max) |
| Ag | 0.5 |
| Al | 0.5 |
| Co | 0.4 |
| Cu | 0.5 |
| Fe | 0.5 |
| Mn | 0.5 |
| Ni | 0.5 |
| Pb | 1.0 |
| Au | 0.5 |
| Zn | 0.5 |
| Mg | 1.0 |
| Cd | 0.4 |
| Particle loj (mesh) | 325 |
| Hom | Epoch-Chem |