CAS 7782-49-2 Siab Purity 99.9% -99.999% Selenium See Hmoov

1. NTA
Cim cim: | Se |
Cas | |
Atomic tus naj npawb: | 34 |
Atomic hnyav: | 78.96 |
Ntawj ntom: | 4.79 GM / CC |
Melting taw tes: | 217 OC |
Boiling taw tes: | 684.9 OC |
Thermal Condivity: | 0.00519 w / k @ 298.2 k |
Hluav Taws Xob Tiv Thaiv: | 106 microhm-cm @ 0 oc |
ElectroneGativity: | 2.4 Phows |
Thaum tshav kub kub tshwj xeeb: | 0.767 cal / g / k 25 25 oc |
Thaum tshav kub kub ntawm vaporization: | 3.34 K-cal / GM Atom ntawm 684.9 OC |
Tshav kub ntawm Fusion: | 1.22 cal / gm mole |
3. Cov phom sij
NtawvCov ntsev muaj tshuaj lom nyob rau hauv ntau npaum li cas, tab sis kab lw yog qhov tsim nyog rau kev muaj nuj nqi cellular
4. Kev thov
Tam sim no siv nyob rau ntau qhov kev siv, los ntawm iav thiab metallurgical cov ntawv thov rau pigments, ua liaj / teb thiab khoom siv hluav taws xob.
Daim ntawv muaj cai:
Dab tsi peb tuaj yeem muab tau: