Cas 7782-49-2 chiyero chachikulu 99.9% -99.999% Selenium Se ufa kapena granules mtengo

Cas 7782-49-2 kuyera kwakukulu 99.9% -99.999% Selenium Se ufa kapena granules mtengo Chithunzi Chowonetsedwa
  • Cas 7782-49-2 chiyero chachikulu 99.9% -99.999% Selenium Se ufa kapena granules mtengo
  • Cas 7782-49-2 chiyero chachikulu 99.9% -99.999% Selenium Se ufa kapena granules mtengo
  • Cas 7782-49-2 chiyero chachikulu 99.9% -99.999% Selenium Se ufa kapena granules mtengo

Kufotokozera Kwachidule:

Dzina la malonda: Selenium Se powder

Fomula: Se

Chiyero: 99.9% - 99.999%

Cas No: 7782-49-2

Maonekedwe: ufa wakuda

Tinthu kukula: 200 mauna


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Mafotokozedwe Akatundu

Amorphous ufa wofiira, kukhala wakuda pakuyima ndi crystalline pa kutentha;mitundu ya vitreous ndi colloidal ikhoza kukonzedwa.

Amorphous mawonekedwe amafewa pa 40 °C ndipo amasungunuka pa 217 °C.Sizichitika kawirikawiri m'chilengedwe chake, kapena ngati mankhwala opangidwa ndi ore.

Kufotokozera

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

 

Kugwiritsa ntchito

1 Kupanga: selenium(I) kloridi, Selenium dichloride,Selenides, mercury selenide.

2 Sayansi yapamwamba yaukadaulo: lead selenide, zinki selenide, mkuwa indium gallium diselenide.

3 Zamagetsi:semiconductors,electropositive zitsulo,Tetraselenium tetranitride.

4 Chemistry: Selenols, selenium isotope, Pulasitiki, kuwonetsa zithunzi.

5 Ntchito yamakampani: Kupanga magalasi, ng'oma ya selenium, chithunzi cha electrostatic, chida chowunikira.

Ubwino Wathu

Rare-earth-scandium-oxide-ndi-mtengo-wambiri-2

Service titha kupereka

1) Mgwirizano wovomerezeka ukhoza kusainidwa

2) Mgwirizano wachinsinsi ukhoza kusainidwa

3) Chitsimikizo chobwezera ndalama masiku asanu ndi awiri

Chofunika kwambiri: sitingapereke mankhwala okha, koma ntchito yothetsera teknoloji!

FAQ

Mukupanga kapena mumagulitsa?

Ndife opanga, fakitale yathu ili ku Shandong, koma titha kukupatsirani ntchito imodzi yokha!

Malipiro

T/T(telex transfer), Western Union, MoneyGram, BTC(bitcoin), etc.

Nthawi yotsogolera

≤25kg: mkati mwa masiku atatu ogwira ntchito mutalandira malipiro.＞25kg: sabata imodzi

Chitsanzo

Zilipo, titha kupereka zitsanzo zazing'ono zaulere pazowunikira zabwino!

Phukusi

1kg pa thumba fpr zitsanzo, 25kg kapena 50kg pa ng'oma, kapena monga mungafunire.

Kusungirako

Sungani chidebecho chotsekedwa mwamphamvu pamalo owuma, ozizira komanso olowera mpweya wabwino.

  • Zam'mbuyo:
  • Ena:

    • ZOKHUDZANA NAZO