Cas 7782-49-2 chiyero chachikulu 99.9% -99.999% Selenium Se powder

Kufotokozera Kwachidule:

1. Dzina la malonda: Selenium Se ufa
2. Cas No: 7782-49-2
3. Chiyero: 99.9% - 99.999%
4. Tinthu kukula: 200 mauna


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Mafotokozedwe Akatundu
selenium metal ufa

1. Mbali 

Chizindikiro:

Se

CAS

7782-49-2

Nambala ya Atomiki:

34

Kulemera kwa Atomiki:

78.96

Kachulukidwe:

4.79gm/cc

Melting Point:

217 oc

Malo Owiritsa:

684.9 oc

Thermal Conductivity:

0.00519 W/cm/K @ 298.2 K

Kukanika kwa Magetsi:

106 microhm-cm @ 0 oC

Electronegativity:

2.4 Zolemba

Kutentha Kwapadera:

0.767 Cal/g/K @ 25 oC

Kutentha kwa vaporization:

3.34 K-cal/gm atomu pa 684.9 oC

Kutentha kwa Fusion:

1.22 Cal/gm mole

3. Zowopsa

Seleniummchere ndi poizoni wambiri, koma kufufuza kuchuluka n'kofunika kuti ma cell ntchito

4. Mapulogalamu

Selenium tsopano imagwiritsidwa ntchito m'njira zosiyanasiyana, kuyambira pagalasi ndi zitsulo kupita ku pigment, ulimi ndi zamagetsi.


Satifiketi:

5

Zomwe titha kupereka:

34


  • Zam'mbuyo:
  • Ena:

  • Zogwirizana nazo