CAS 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov
Product Description
selenium hlau hmoov
1. Nta
Cim: | Se |
CAS | |
Atomic Number: | 34 |
Atomic hnyav: | 78.96 ib |
Ceev: | 4.79g/mc ib |
Melting Point: | 217oC ua |
Boiling Point: | 684.9c ua |
Thermal conductivity: | 0.00519 W/cm/K @ 298.2 K |
Hluav taws xob Resistivity: | 106 microhm-cm @ 0 oC |
Electronegativity: | 2.4 Pauling |
Thaum tshav kub kub tshwj xeeb: | 0.767 Cal/g/K @ 25 oC |
Thaum tshav kub kub ntawm Vaporization: | 3.34 K-cal/gm atom ntawm 684.9 oC |
Thaum tshav kub kub Fusion: | 1.22 cal/gm |
3. Muaj xwm txheej
Seleniumntsev yog tshuaj lom nyob rau hauv loj, tab sis cov kab mob yog tsim nyog rau kev ua haujlwm ntawm tes
4. Cov ntawv thov
Seleniumyog tam sim no siv ntau yam kev siv, los ntawm cov iav thiab metallurgical daim ntaub ntawv mus rau pigments, kev ua liaj ua teb thiab electronics.
Daim ntawv pov thawj:
Qhov peb tuaj yeem muab tau: