CAS 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov

Lus piav qhia luv luv:

1. Khoom npe: Selenium Se hmoov
2. CAS No: 7782-49-2
3. Purity: 99.9% - 99.999%
4. Particle loj: 200 mesh


Product Detail

Khoom cim npe

Product Description
selenium hlau hmoov

1. Nta 

Cim:

Se

CAS

7782-49-2 ib

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

Selenium yog tam sim no siv nyob rau hauv ntau yam kev siv, los ntawm iav thiab metallurgical daim ntaub ntawv mus rau pigments, kev ua liaj ua teb thiab electronics.


Daim ntawv pov thawj:

5

Qhov peb tuaj yeem muab tau:

34


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