CAS 7782-49

CAS 7782-49
  • CAS 7782-49
  • CAS 7782-49
  • CAS 7782-49

Tsananguro pfupi:

Chigadzirwa Zita: Selenium Se poda

Formula: se

Kuchena: 99.9% - 99.999%

CAT HAPANA: 7782-49-2

Chitarisiko: dema poda

Saizi yeChikamu: 200 mesh


Chigadzirwa Chinhu

Zvigadzirwa tags

Tsananguro yechigadzirwa

Amorphous tsvuku hupfu, ichiva dema pakamira uye crystalline yekupisa; Mafomu Anitceous uye Collidal anogona kunge akagadzirira.

Amorphous inoumba inonyudza pa40 ° C uye inonyungudika pa 217 ° C. Izvo hazviwanzo kuitika mune yayo yekutanga mamiriro mune zvakasikwa, kana seyakachena ore makomendi.

Kutaurwa

Symbol:
Se
CAS
7782-49-2
Nhamba yeAtomi:
34
Kurema kweatomu:
78.96
Density:
4.79 GM / CC
Inonyungudika Pfungwa:
217 oc
Boiling Point:
684.9 OC
Thermal Underity:
0.00519 W / CM / CM @ 298.2 k
Basa remagetsi:
106 microhm-cm @ 0 oc
Electronegativity:
2.4 Paulings
Yakananga kupisa:
0.767 cal / g / k @ 25 oc
Kupisa kweVaporization:
3.34 K-CAL / GM ATOM at 684.9 OC
Kupisa kweFusion:
1.22 CAL / GM Mole

 

Application

1 Kugadzira: Selenium (i) chlorid, Selenium Dichloride, Selenies, Mercury Slenide.

2 Science Science Technology Indasitiri: Tungamira Kusimbirira, Zinc Sleniide, Copter Indium Gallentide.

3 magetsi: semiconductuctrsors, electropositive metals, tetreseenium tetranitride.

4 Chemistry: Selelonls, Selenium isotope, purastics, kuratidzwa kwemifananidzo.

5 Industry application: Girazi kugadzira, Selenium chigubhu, electrostatic pikicha, chishandiso chemagetsi.

Zvakanakira zvedu

Rare-Earth-Scandium-Oxide-ne-Great-Mutengo-2

Sevhisi isu tinokwanisa kupa

1) Chibvumirano chakarongeka chinogona kusainwa

2) Chibvumirano chakavanzika chinogona kusaina

3) Mazuva manomwe Kudzorera Guarantee

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FAQ

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Tungamira nguva

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Sampuli

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Package

1kg paBag FPR Samples, 25kg kana 50kg per chigubhu, kana sezvaunoda.

Chengetedza

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