Cas 7782-49-42-2 Ukuhlanzeka Okuphezulu 99.9% -99.999% Selenium se powder noma intengo yegremu

Cas 7782-49-42-2 Ukuhlanzeka Okuphezulu 99.9% -99.999% Selenium se powder noma amagremu afakiwe Isithombe
  • Cas 7782-49-42-2 Ukuhlanzeka Okuphezulu 99.9% -99.999% Selenium se powder noma intengo yegremu
  • Cas 7782-49-42-2 Ukuhlanzeka Okuphezulu 99.9% -99.999% Selenium se powder noma intengo yegremu
  • Cas 7782-49-42-2 Ukuhlanzeka Okuphezulu 99.9% -99.999% Selenium se powder noma intengo yegremu

Incazelo emfushane:

Igama lomkhiqizo: I-Selenium se powder

Ifomula: se

Ukumsulwa: 99.9% - 99.999%

I-CO CHA: 7782-49-2

Ukubukeka: I-Black Powder

Ubukhulu bezinhlayiyana: I-200 Mesh


Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Ukuchazwa Komkhiqizo

I-Amorphous Red Powder, iba mnyama ngokuma ne-crystalline ekushiseni; Amafomu e-vitreous nama-colloidal angalungiswa.

Ifomu le-Amorphous lithambisa ku-40 ° C bese lincibilika ku-217 ° C. Akuvamile ukuba kwenzeke esimweni sayo sangempela emvelweni, noma njengezinhlanganisela ze-ore ezihlanzekile.

Ukucacisa

Symbol:
Se
Umkhoga
7782-49-2
Inombolo ye-Atomic:
34
Isisindo se-athomu:
78.96
Ubuningi:
4.79 GM / CC
Iphuzu lokuncibilika:
217 OC
Iphuzu elibilayo:
684.9 OC
Ukuvuselelwa okushisayo:
0.00519 W / CM / K @ 298.2 k
Ukumelana Kagesi:
106 Microhm-Cm @ 0 OC
I-Electronegativity:
2.4 Paulisings
Ukushisa okuqondile:
0.767 CAL / G / K @ 25 OC
Ukushisa kwe-Vaporization:
3.34 k-cal / gm athomu ku-684.9 OC
Ukushisa kwe-fusion:
I-1.22 CAL / GM Mole

 

Isicelo

1 Ukukhiqiza: Selenium (I) Chlorid, Selenium Dichloride, Selenides, Mercury Selenide.

Imboni yesayensi eyi-2 yesayensi

I-3 Electric: I-Semiconductors, ama-Metroositive Metals, iTetraselenium Tetranitride.

4 Chemistry: Selenols, Selenium isotope, amapulasitiki, ukuvezwa kwezithombe.

5 Isicelo sezimboni: Ukwenza ingilazi, isigubhu se-selenium, isithombe se-electrostatic, insimbi yokubona.

Izinzuzo zethu

I-Rare-Earth-Scandium-Oxide-ene-Great-Price-2

Insiza esingayinikeza

1) inkontileka ehlelekile ingasayinwa

2) Isivumelwano semfihlo singasayinwa

3) Isiqinisekiso Sezinsuku eziyisikhombisa

Okubaluleke kakhulu: Asinikezi kuphela umkhiqizo, kepha insizakalo yokhambi lobuchwepheshe!

Umthandi

Ngabe uyakha noma uhweba?

Singabakhiqizi, ifektri yethu itholakala eShandong, kepha futhi singanikeza nensizakalo eyodwa yokuthenga!

Imibandela Yokukhokha

I-T / T (TELEX TRRANCH), Union Western, MoneyGram, BTC (Bitcoin), njll.

Isikhathi esiholayo

≤25kg: kungakapheli izinsuku ezintathu zomsebenzi ngemuva kokuthola inkokhelo. > 25kg: isonto elilodwa

Imbonakaliso

Kuyatholakala, singanikeza amasampula amancane wamahhala wenhloso yokuhlola yekhwalithi!

Isishuqulu

I-1kg ngesikhwama ngasinye se-FPR samasampula, i-25kg noma i-50kg ngesigubhu ngasinye, noma njengoba udinga.

Ukubeka

Gcina isitsha esivalwe ngokuqinile endaweni eyomile, epholile futhi enomoya omuhle.

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