Pasent 7782-49-2 dị elu dị elu 99.9% -99.999% selenium se ntụ ma ọ bụ granules ọnụahịa

Pasent 7782-49-2 dị elu dị elu 99.9% -99.999% selenium se ntụ ọka ma ọ bụ granules elu
  • Pasent 7782-49-2 dị elu dị elu 99.9% -99.999% selenium se ntụ ma ọ bụ granules ọnụahịa
  • Pasent 7782-49-2 dị elu dị elu 99.9% -99.999% selenium se ntụ ma ọ bụ granules ọnụahịa
  • Pasent 7782-49-2 dị elu dị elu 99.9% -99.999% selenium se ntụ ma ọ bụ granules ọnụahịa

Nkọwa mkpụmkpụ:

Aha ngwaahịa: selenium se ntụ

Usoro: se

Ịdị ọcha: 99.9% - 99.999%

Ee e: 7782-49-2

Ọdịdị: Black ntụ

Oke uruku: 200 ntupu


Nkọwa nke ngwaahịa

Mkpado Ngwaahịa

Nkọwa nke ngwaahịa

Ntụ ntụ na-acha uhie uhie, na-agba oji guzo ọtọ na kristal na kpo oku; Enwere ike ịkwadebe ụdị na colloidal.

Amorationdị amoraphous dị nro na 40 Celsius C ma gbazee na 217 Celsius. Ọ na-adịkarị na ọnọdụ ya na ọdịdị ya, ma ọ bụ dị ka ogige ma ọ bụ ogige.

Nkowa

Akara:
Se
Ikpe
7782-49-2
Nọmba atomic:
34
Ibu atomic:
78.96
Njupụta:
4.79 gm / cc
Na-agbaze
217 OC
Isi mmiri:
684.9 OC
Na-eme ihe ọkụkụ:
0.00519 w / cm / k 298.2 K
Eletriki na-adịgide:
106 microhm-cm @ 0 oc
Electronegativity:
2.4 Paul
Okpomoku di iche iche:
0.767 cal / g / k @ 25 OC
Okpomoku nke veporization:
3.34 K-cal / GM ATM na 684.9 OC
Okpokoro nke Fin:
1.22 cal / gm ahu

 

Akwukwo icho oru

1 Nmeputa: Selenium (i) chlorid, selenuum dichloride, Sholenides, mercuery.

Industrylọ ọrụ sayensị dị elu nke sayensị: na-eduzi selenide, zinc Selenide, ọla kọpa na-emebi emebi.

3 Eletrik: Semiconductor, ọla elecropsositive, tetraselenium tetranitride.

4 Chemistry: Selenol, selenium carope, plastics, mkpughe foto.

5 Ngwa ụlọ ọrụ: Ibe akwụkwọ, selenium drum, foto elektrik, ngwa ọdịnala.

Uru Anyị

Rare-Scandium-Scandium-oxide-mara mma-2

Ọrụ anyị nwere ike inye

1) Enwere ike ịbanye na nkwekọrịta

2) Enwere ike ịbanye na nzuzo

3) Akwụghachi ụbọchị asaa

Nke ka mkpa: Anyị nwere ike inye naanị ngwaahịa, mana teknụzụ ga-eme teknụzụ!

Ajụjụ

You na-emepụta ma ọ bụ ahia?

Anyị bụ ndị nrụpụta, ụlọ ọrụ anyị dị na Shandong, mana anyị nwekwara ike inye otu ọrụ nkwụsị maka ọrụ!

Usoro ịkwụ ụgwọ

T / T (TETEX Nyefee), Western Union, Moneygram, BTC (Bitcoin), wdg.

Etiti oge

≤25kg: N'ime ụbọchị ọrụ atọ mgbe akwụ ụgwọ natara. > 25KG: Otu izu

Sampul

Ọ dị, anyị nwere ike iwepụta obere nlele n'efu maka ebumnuche nyocha!

Ngwugwu

1kg kwa akpa fpr samples, 25kg ma ọ bụ 50kg kwa drum, ma ọ bụ dịka ịchọrọ.

Storaji

Chekwaa akpa ahụ na-emechi emechi na nkụ, dị jụụ na nke ọma.

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