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

Cov lus piav qhia luv luv:

1. Cov Khoom Siv: Selenium See Hmoov
2. Cas Tsis Yog: 7782-49-2
3. Purity: 99.9% - 99.999%
4. Paus Loj Loj: 200 mesh


Khoom Qhia Qhia

Khoom Ntawv

Khoom Piav Qhia
Selenium Hlau Hmoov

1. NTA 

Cim cim:

Se

Cas

7782-49-2

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:

5

Dab tsi peb tuaj yeem muab tau:

34


  • Yav dhau los:
  • Tom ntej:

  • Lwm Yam Khoom