Cas 77829-2 Kukula Kwambiri 99.9% -99.999% Selenium se ufa kapena mtengo wa granules

Cas 7782-49-2 Kuwala Kwambiri 99.9% -99.999% Selenium se ufa kapena mitengo ya granules
  • Cas 77829-2 Kukula Kwambiri 99.9% -99.999% Selenium se ufa kapena mtengo wa granules
  • Cas 77829-2 Kukula Kwambiri 99.9% -99.999% Selenium se ufa kapena mtengo wa granules
  • Cas 77829-2 Kukula Kwambiri 99.9% -99.999% Selenium se ufa kapena mtengo wa granules

Kufotokozera kwaifupi:

Dzina lazogulitsa: Selenium se ufa

Formula: se

Kuyera: 99.9% - 99.999%

Cas No: 7782-49-2

Maonekedwe: ufa wakuda

Kukula kwa tinthu: Malangizo 200


Tsatanetsatane wazogulitsa

Matamba a malonda

Mafotokozedwe Akatundu

Amorphous ofiira ofiira, akukhala akuda ataimirira ndi kristano pakutentha; Mafomu auzimu ndi colloidal atha kukonzekera.

Fomu yamorphous imafewetsa 40 ° C ndipo imasungunuka pa 217 ° C. Sizimachitika kawirikawiri mu dziko loyambirira lachilengedwe, kapena ngati mafuta oyera.

Chifanizo

CHITSANZO:
Se
Chiphaso
7782-49-2
Nambala ya Atomiki:
34
Kulemera kwa atomiki:
78.96
Kuchulukitsa:
4.79 gm / cc
Malo osungunuka:
217 OC
Malo owiritsa:
684.9 OC
Mafuta Awo:
0.00519 w / cm / k @ 298.2 k
Kusamala kwamagetsi:
106 microhm-cm @ oc
Electronegatality:
2.4
Kutentha kwapadera:
0.767 cal / g / k @ 25 OC
Kutentha kwa Vaporilization:
3.34 k-cal / gm atomu pa 684.9 oc
Kutentha kwanyengo:
1.22 cal / gm mole

 

Karata yanchito

Kupanga: Selenium (i) chlorid, Selenium Dichloride, Seleclides, Mercrory Selenide.

2 Mafakitale aluso apamwamba: Afiledi, zinc Elenade, mkuwa wa Indiaum Galuum ikani.

3 yamagetsi: Semiconductors, zitsulo zamagetsi, Tetoraleniam tetranride.

4 Chemistry: Selenols, Selenium Inofolope, plastics, kuwonekera kwa zithunzi.

Kugwiritsa ntchito kwa makampani 5: kupanga galasi, Selenium Drum, chithunzi chamagetsi, chida chowoneka.

Zabwino zathu

Osowa kwambiri padziko lapansi - ozizira-oxide-ndi-mtengo-2

Ntchito Titha Kupereka

1) Contrated mgwirizano wovomerezeka akhoza kusankhidwa

2) Mgwirizano wachinsinsi ungasainidwe

3) Masiku asanu ndi awiri obweza ngongole

Chofunika kwambiri: Sitingangopereka malonda okha, koma njira yaukadaulo yaukadaulo!

FAQ

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Nthawi yotsogolera

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

Chitsanzo

Kupezeka, titha kupereka zitsanzo zazing'ono zaulere za cholinga chabwino!

Phukusi

1kg pa Thumba la FPRS zitsanzo, 25kg kapena 50kg pa ngoma pa Drum, kapena momwe mukufunira.

Kusunga

Sungani chidebe chomwe chatsekeka mwamphamvu pamalo owuma, ozizira komanso ozizira.

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