Barium hlau 99.9%
Breif kev taw qhiantawmBariumhlau granules:
Khoom npe: Barium hlau granules
Cas: 7440-39-3
Purity: 99.9%
Formula: Ba
Loj: -20mm, 20-50mm (hauv qab cov roj ntxhia)
Melting point: 725 ° C (lit.)
Kub taw tes: 1640 ° C (lit.)
Ceev: 3.6 g / mL ntawm 25 ° C (lit.)
Cia temp. thaj chaw tsis muaj dej
Daim ntawv: rod pieces, chunks, granules
Specification Gravity: 3.51
Xim: Nyiaj-grey
Resistivity: 50.0 μΩ-cm, 20 ° C
Barium yog cov khoom siv tshuaj lom neeg nrog cov cim Ba thiab atomic tooj 56. Nws yog lub thib tsib hauv pawg 2, ib qho mos mos silvery metallic alkaline ntiaj teb hlau. Vim nws cov tshuaj lom neeg muaj zog heev, barium yeej tsis pom nyob rau hauv cov xwm txheej uas yog cov khoom dawb. Nws cov hydroxide, paub hauv keeb kwm yav dhau los ua ntej li baryta, tsis tshwm sim raws li cov ntxhia, tab sis tuaj yeem npaj tau los ntawm cua sov barium carbonate.
Daim ntawv thov: Hlau thiab alloys, bearing alloys; txhuas-tin soldering alloys - kom nce creep kuj; alloy nrog npib tsib xee rau lub txim taws; additive rau hlau thiab cam khwb cia hlau raws li ib tug inoculant; alloys nrog calcium, manganese, silicon, thiab txhuas raws li qib high-qib steel deoxidizers.Barium tsuas muaj ob peb daim ntawv thov kev lag luam. Cov hlau tau muaj keeb kwm siv los khawb huab cua hauv lub tshuab nqus tsev. Nws yog ib feem ntawm YBCO (high-temperature superconductors) thiab electro ceramics, thiab ntxiv rau cov hlau thiab cam khwb cia hlau los txo qhov luaj li cas ntawm carbon nplej nyob rau hauv lub microstructure ntawm cov hlau.
Barium, raws li ib tug hlau los yog thaum alloyed nrog txhuas, yog siv los tshem tawm cov pliaj gases (guttering) los ntawm lub tshuab nqus tsev raj, xws li TV duab raj. Barium yog haum rau lub hom phiaj no vim nws tsis tshua muaj vapor siab thiab reactivity ntawm oxygen, nitrogen, carbon dioxide, thiab dej; nws muaj peev xwm txawm tshem tawm cov pa roj carbon monoxide los ntawm dissolving lawv nyob rau hauv lub siv lead ua lattice. Daim ntawv thov no maj mam ploj mus vim qhov muaj koob meej ntawm cov tubeless LCD thiab cov ntshav ntshav.
Barium, raws li ib tug hlau los yog thaum alloyed nrog txhuas, yog siv los tshem tawm cov pliaj gases (guttering) los ntawm lub tshuab nqus tsev raj, xws li TV duab raj. Barium yog haum rau lub hom phiaj no vim nws tsis tshua muaj vapor siab thiab reactivity ntawm oxygen, nitrogen, carbon dioxide, thiab dej; nws muaj peev xwm txawm tshem tawm cov pa roj carbon monoxide los ntawm dissolving lawv nyob rau hauv lub siv lead ua lattice. Daim ntawv thov no maj mam ploj mus vim qhov muaj koob meej ntawm cov tubeless LCD thiab cov ntshav ntshav.
COA ntawm Barium hlau granules
Daim ntawv pov thawj: 
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