Birta barium 99.9%
Hordhac BreifeeBariumGranules birta:
Magaca wax soo saarka: Granules birta barium
CAS: 7440-39-3
Daahirnimo: 99.9%
Qaaciddada: ba
Cabbir: -20mm, 20-50mm (oo ku hoos jira macdanta macdanta)
Barta dhalaalaya: 725 ° C (iftiinka.)
Point Point: 1640 ° C (iftiin.)
Cufnaanta: 3.6 g / ml at 25 ° C (iftiinka.)
Ku-meelgaarka ah ee keydinta. Meel biyo-bannaan
Foom: gogo 'ubax, chunks, granules
Xaraash gaar ah: 3.51
Midabka: qalin-cawlan
Dib-u-is-dhaafsi: 50.0 ω-cm, 20 ° C
Barium waa shey kiimiko ah oo leh astaanta bais iyo lambarka atomikada 56. Waa sheyga shanaad ee Group 2, mid jilicsan oo bir jilicsan oo bir ah oo bir ah. Sababta oo ah falcelinteeda kiimikada ee ugu sarreysa, barium waligeed dabiiciga looma arko inay tahay shey bilaash ah. Hydroxide, oo loo yaqaan taariikhda casriga ah ee loo yaqaan 'Baryta', uma dhacdo sidii macdanta, laakiin waxaa lagu diyaarin karaa kuleylka kaadida bari-ka.
Codsiyada: Bir iyo alldos, oo dhaleeceeya alldons-ka; alov-thens-ka horyaalka ah - si loo kordhiyo iska caabinta gurguurta; alloy oo leh nikkel kufsiga ah ee kufsiga; Ku darida birta iyo birta xarkaha sidii loo yaqaan 'toculant'. Aloys oo leh kaalshiyam, manganese, Silicon, iyo aluminium maadaama ay tahay xasaasiyad xasaasiyad heer sare ah.Barium waxay leedahay kaliya dhowr dalabyo warshadeed oo keliya. Birta ayaa taariikh ahaan loo isticmaalay in lagu ciqaabo hawada hawada tuubooyinka vacuum. Waa qayb ka mid ah YBCO (supercontors-ka-sare) iyo dhoobada elektiroonigga ah, waxaana lagu daraa bir iyo bir bir ah si loo yareeyo cabirka badarka kaarboonka miraha miqeynta ee birta.
Barium, oo ah bir ama markii ay ku jiraan aluminium, waxaa loo isticmaalaa in laga saaro gaaska aan loo baahnayn (xargaha) tuubooyinka vacuum, sida tuubooyinka sawirka TV-ga. Barium waxay ku habboon tahay ujeedkan uumi baxa uumiga uumiga ee uumiga iyo firfircoonida uumiga u qabo oksijiinka, nitrogen, kaarboon dioxide, iyo biyo; Xitaa qayb ahaan waxay ka saari kartaa gaaska sharafta leh iyada oo lagu kala diri lahaa suulka crystal. Codsigan si tartiib tartiib ah ayuu u baaba'ay sababtuna tahay soo ifbaxaya ee soo kordhaya ee LCD-da-tudus iyo plasma.
Barium, oo ah bir ama markii ay ku jiraan aluminium, waxaa loo isticmaalaa in laga saaro gaaska aan loo baahnayn (xargaha) tuubooyinka vacuum, sida tuubooyinka sawirka TV-ga. Barium waxay ku habboon tahay ujeedkan uumi baxa uumiga uumiga ee uumiga iyo firfircoonida uumiga u qabo oksijiinka, nitrogen, kaarboon dioxide, iyo biyo; Xitaa qayb ahaan waxay ka saari kartaa gaaska sharafta leh iyada oo lagu kala diri lahaa suulka crystal. Codsigan si tartiib tartiib ah ayuu u baaba'ay sababtuna tahay soo ifbaxaya ee soo kordhaya ee LCD-da-tudus iyo plasma.
COA of Brium birta barium
Shahaadadan: 
Waxa aan bixin karno: 
