Barium hlau granules | Ba pellets | CAS 7440-39-3 Nr 99.5%

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Peb muab siab purity 99.5% Barium hlau ingots, 1kg ntim tau ntim ntim nrog Argon lossis roj.

Muaj peev xwm muab qhov loj me: 20-50mm, 20 ± 5mm, -20mm.

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Product Detail

Khoom cim npe

Product Description

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Khoom npe: Barium hlau granules
CAS nr: 7440-39-3
Purity: 99.9%
Formula: Ba
Loj: -20mm, 20 ± 5mm, 20-50mm (hauv qab argon lossis roj)
Melting point: 725 ° C (lit.)
Kub taw tes: 1640 ° C (lit.)
Ceev: 3.6 g / mL ntawm 25 ° C (lit.)
Daim ntawv: irregular puab nyob rau hauv granules / pellets / ingots
Xim: Nyiaj-grey
Pob: 1kg ib lub hnab ntim tau

Specification

Khoom	Barium
CAS Nr	7647-17-8 ib
Batch No.	16121606 ib	Ntim:	100.00 Kg
Hnub tsim khoom:	Kaum Ob Hlis 16, 2016	Hnub xeem:	Kaum Ob Hlis 16, 2016
Test yam khoom w/%	Cov txiaj ntsig	Test yam khoom w/%	Cov txiaj ntsig
Ba	> 99.92%	Sb	<0.0005
Be	<0.0005	Ca	0.015 ib
Na	<0.001	Sr	0.045 ib
Mg	0.0013	Ti	<0.0005
Al	0.017 ib	Cr	<0.0005
Si	0.0015 Nws	Mn	0.0015 Nws
K	<0.001	Fe	<0.001
As	<0.001	Ni	<0.0005
Sn	<0.0005	Cu	<0.0005

Test Standard	Be, Na thiab lwm yam 16 yam: ICP-MS Ca, Sr: ICP-AES Ba: TC-TIB
Xaus:	Ua raws li tus qauv kev lag luam

Daim ntawv thov

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.

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.