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Cas 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov nqe Featured duab
  • Cas 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov nqi
  • Cas 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov nqi
  • Cas 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov nqi

Cas 7782-49-2 siab purity 99.9% -99.999% Selenium Se hmoov nqi

Lus piav qhia luv luv:

Khoom npe: Selenium Se hmoov

Formula: Se

Purity: 99.9% - 99.999%

CAS Nr .: 7782-49-2

Qhov tsos: hmoov dub

Particle loj: 200 mesh


Product Detail

Khoom cim npe

Product Description

Kev taw qhia luv luv

1. Khoom npe:Selenium Se hmoov

2. Formula: Se3.Purity: 99.9% - 99.999% 4.Cas No:7782-49-2 ib

5. Cov tsos: hmoov dub
6. Particle loj: 200 mesh

Yam ntxwv.

Amorphous liab hmoov, ua dub ntawm sawv thiab crystalline ntawm cua sov;Cov ntawv vitreous thiab colloidal tuaj yeem npaj tau.
Amorphous daim ntawv softens ntawm 40 ° C thiab melts ntawm 217 ° C.Nws tsis tshua muaj tshwm sim nyob rau hauv nws lub xeev elemental nyob rau hauv cov xwm, los yog raws li ntshiab ore compounds.

Daim ntawv thov

1 Kev tsim khoom: selenium (I) chlorid, Selenium dichloride, Selenides, mercury selenide.
2 Science high technology kev lag luam: txhuas selenide, zinc selenide, tooj liab indium gallium diselenide.
3 Hluav taws xob: semiconductors, electropositive hlau, Tetraselenium tetranitride.
4 Chemistry: Selenols, selenium isotope, Yas, duab raug.
5 Kev lag luam daim ntawv thov: iav ua, selenium nruas, electrostatic duab, kho qhov muag ntsuas.
Specification
Cim:
Se
CAS
7782-49-2 ib
Atomic Number:
34
Atomic hnyav:
78.96 ib
Ceev:
4.79g/mc ib
Melting Point:
217oC ua
Boiling Point:
684.9c ua
Thermal conductivity:
0.00519 W/cm/K @ 298.2 K
Hluav taws xob Resistivity:
106 microhm-cm @ 0 oC
Electronegativity:
2.4 Pauling
Thaum tshav kub kub tshwj xeeb:
0.767 Cal/g/K @ 25 oC
Thaum tshav kub kub ntawm Vaporization:
3.34 K-cal/gm atom ntawm 684.9 oC
Thaum tshav kub kub Fusion:
1.22 cal/gm
Peb Qhov Zoo

Kev pabcuam peb tuaj yeem muab tau
1) Daim ntawv cog lus raug cai tuaj yeem kos npe

2) Daim ntawv cog lus tsis pub lwm tus paub tuaj yeem kos npe
3) Xya hnub rov qab lav
Tseem ceeb tshaj: peb tuaj yeem muab tsis tau tsuas yog cov khoom lag luam, tab sis kev pabcuam kev daws teeb meem!
Packing & Delivery

Txhawm rau kom muaj kev nyab xeeb ntawm koj cov khoom zoo dua, kev tshaj lij, ib puag ncig tus phooj ywg, kev pabcuam ntim tau yooj yim thiab ua haujlwm tau zoo.
Tuam txhab Profile

Tuam txhab Taw Qhia

Shanghai Epoch Material Co., Ltd. yog nyob rau hauv lub chaw lag luam-Shanghai.Peb ib txwm ua raws li "Cov ntaub ntawv qib siab, lub neej zoo dua" thiab pawg neeg tshawb fawb thiab txhim kho thev naus laus zis, ua kom nws siv rau tib neeg lub neej txhua hnub kom peb lub neej zoo dua.

Tam sim no, peb feem ntau cuam tshuam nrog cov ntaub ntawv tsis tshua muaj hauv ntiaj teb, cov ntaub ntawv nano, cov ntaub ntawv OLED, thiab lwm yam khoom siv siab heev.Cov ntaub ntawv qib siab no tau siv dav hauv chemistry, tshuaj, biology, OLED zaub, OLED lub teeb, kev tiv thaiv ib puag ncig, lub zog tshiab, thiab lwm yam.

Rau lub sijhawm tam sim no, peb muaj ob lub chaw tsim khoom hauv Shandong xeev.Nws npog thaj tsam ntawm 30,000 square metres, thiab muaj cov neeg ua haujlwm ntau tshaj 100 tus neeg, ntawm 10 tus neeg yog cov engineers laus.Peb tau tsim cov kab ntau lawm tsim nyog rau kev tshawb fawb, kev sim ntsuas, thiab kev tsim khoom loj, thiab tseem tsim tau ob lub chaw kuaj mob, thiab ib qho chaw sim.Peb kuaj txhua yam khoom ua ntej xa khoom kom paub tseeb tias peb muab cov khoom zoo rau peb cov neeg siv khoom.

Peb txais tos cov neeg siv khoom thoob ntiaj teb tuaj xyuas peb lub Hoobkas thiab tsim kom muaj kev koom tes zoo ua ke!

Muaj ib lo lus qub nyob rau Suav teb hais tias peb zoo siab heev uas tau pom cov phooj ywg thiab cov neeg siv khoom thoob plaws ntiaj teb!

Peb lub tuam txhab tau dhau los ntawm kev tswj hwm ntawm ISO 9001, thiab peb muaj peb tus kheej SOP system rau kev tsim khoom, muag, thiab kev pabcuam tomqab muag!Vam tias peb tuaj yeem muab kev pabcuam zoo thiab kev tshaj lij rau koj!
Kev Lag Luam Kev Lag Luam

Zoo siab txais tos txhua tus neeg siv khoom thoob ntiaj teb!
Peb muaj cov neeg siv khoom thoob ntiaj teb, thiab txog tam sim no, tau tsim kev koom tes zoo nrog sumsung, LG, LV, nrog rau ntau lwm tus neeg siv khoom, thiab xav paub ntxiv, thov hu rau peb!
FAQ
1) Puas yog koj tsim khoom lossis lag luam?

Peb yog cov chaw tsim khoom, peb lub Hoobkas nyob hauv Shandong, tab sis peb tseem tuaj yeem muab kev pabcuam nres ib qho rau koj!
2) Cov nqe lus them nqi: T / T (tex hloov pauv), Western Union, MoneyGram, BTC (bitcoin), thiab lwm yam.3) Lub sijhawm ua haujlwm≤ 25kg: hauv peb hnub ua haujlwm tom qab tau txais cov nyiaj them poob haujlwm ＞ 25kg: ib lub lis piam
4) SampleAvailable, peb tuaj yeem muab cov qauv dawb me me rau kev soj ntsuam zoo! 5) Pob 1kg ib lub hnab fpr kuaj,

25kg lossis 50kg rau ib lub nruas, lossis raws li koj xav tau.6) Cia lub thawv kaw kom nruj rau hauv qhov chaw qhuav, txias thiab qhov cua zoo.

  • Yav dhau los:
  • Tom ntej:
    • Sau koj cov lus ntawm no thiab xa tuaj rau peb

    Cov khoom pom zoo

    Ntaus nkag mus tshawb lossis ESC kom kaw