Barium simbi

Barium simbi
Barium, simbi

 
Structural formula:Ba
【Molecular Weight 】137.33
[Zvinhu Zvenyama neKemikari] Yero sirivheri chena simbi yakapfava. Relative density 3.62, melting point 725 ℃, inofashaira poindi 1640 ℃. Muviri wepakati cubic: α=0.5025nm. Kunyunguduka kupisa 7.66kJ/mol, vaporization kupisa 149.20kJ/mol, mhute pressure 0.00133kpa (629 ℃), 1.33kPa (1050 ℃), 101.3kPa (1640 ℃), resistivity 1Ω2 cm. Ba2+ ine radius ye0.143nm uye yekupisa conductivity ye18.4 (25 ℃) W/(m · K). Linear yekuwedzera coefficient 1.85 × 10-5 m/(M ·℃). Patembiricha yemumba, inopindirana nyore nemvura kuburitsa hydrogen gasi, inonyungudika zvishoma mudoro uye isinganyunguriki mubenzene.
[Hunhu Mitemo]Reference Standards
【Kushandiswa】Inoshandiswa zvakanyanya mu degassing alloys, kusanganisira lead, calcium, magnesium, sodium, lithium, aluminium, uye nickel alloys. Inoshandiswa seyakadzvanya gasi kubvisa trace gasi yasara mumachubhu isina waya, uye inoshandiswawo mukugadzira barium munyu.
Aluminium thermal reduction method: Barium nitrate inowora nekushisa kugadzira barium oxide. Fine grained aluminiyamu inoshandiswa sechinhu chinoderedza, uye chiyero chezvigadzirwa ndeye 3BaO: 2A1. Barium oxide uye aruminiyamu zvinotanga kugadzirwa kuita pellets, izvo zvobva zvaiswa muchirimo uye nekudziya kusvika 1150 ℃ yekudzikisa distillation kucheneswa. Kuchena kweiyo inoguma barium ndeye 99%.
【Chengetedzo】Guruva rinongobvira nekutsva patembiricha yemumba uye rinogona kukonzera kupisa uye kuputika kana rakaiswa mukupisa, marimi emoto, kana kuita kwemakemikari. Inowanzoita kuparara kwemvura uye inopindirana nechisimba neasidhi, ichibudisa hydrogen gasi inogona kupiswa nekupisa kwekuita. Kusangana nefluorine, chlorine, uye zvimwe zvinhu zvinogona kukonzera mhirizhonga kemikari. Barium simbi inopindirana nemvura kuita barium hydroxide, iyo ine corrosive effect. Panguva imwecheteyo, mvura-soluble barium salt ine chepfu zvakanyanya. Ichi chinhu chinogona kukuvadza kune zvakatipoteredza, zvinokurudzirwa kuti zvirege kupinda munharaunda.
Hazard code: Chinhu chinopfuta chasangana nehunyoro. GB 4.3 Kirasi 43009. UN No. 1400. IMDG CODE 4332 peji, Kirasi 4.3.
Paunenge uchiitora nekukanganisa, inwa mvura inodziya yakawanda, kurudzira kurutsa, geza dumbu ne2% kusvika ku5% sodium sulfate solution, konzera manyoka, uye tsvaga kurapwa. Kufema huruva kunogona kukonzera chepfu. Varwere vanofanira kutorwa kubva munzvimbo yakasvibiswa, kuzorora, uye kuramba vachidziya; Kana kufema kwakamira, pakarepo ita kufema kwekugadzira uye kutsvaga kurapwa. Netsaona uchipfapfaidza mumaziso, sukurudza nemvura yakawanda, tsvaga kurapwa mumatambudziko akaomarara. Kubata ganda: Tanga wageza nemvura, wozonyatsogeza nesipo. Kana pane vakatsva, tsvaga kurapwa. Ibva wageza muromo wako kana ukapinzwa nekukanganisa uye nekukurumidza tsvaga kurapwa.
Paunenge uchibata barium, zvinodikanwa kusimbisa matanho ekuchengetedza ekuchengetedza evashandisi. Tsvina yose inofanira kubatwa ne ferrous sulfate kana sodium sulfate kushandura muchetura barium munyu kuita low solubility barium sulfate.
Vashandi vanofanirwa kupfeka masiki eguruva ega-priming, magirazi ekuchengetedza makemikari, zvipfeko zvekudzivirira makemikari, uye magurovhosi erabha. Gara kure nezvinobva pamoto nekupisa, uye kuputa kunorambidzwa zvachose munzvimbo yebasa. Shandisa kuputika-proof ventilation systems nemidziyo. Dzivisa kusangana neoxidants, acids, uye mabhesi, kunyanya nemvura.
Yakachengetwa muparafini neparafini yemvura, yakaputirwa mumabhodhoro egirazi akavharika zvisingapindi mhepo, ane huremu hwe1kg pabhodhoro, uyezve yakamisikidzwa mumabhokisi emapuranga akaiswa padding. Panofanirwa kuve neakajeka "Zvinhu Zvinopisa Mukubata Nekunyorova" label pane yekurongedza, ine yechipiri label ye "Toxic Substances".
Chengeta muimba inotonhorera, yakaoma, uye ine mhepo isingabatiki. Chengetedza kure nekupisa nemoto, kudzivirira hunyoro, uye kudzivirira kukuvara kwemudziyo. Usasangana nemvura, asidhi, kana oxidants. Yakaparadzaniswa kubva kune organic zvinhu, zvinopisa, uye nyore oxidizable zvinhu zvekuchengetedza uye zvekufambisa, uye hazvigone kutakurwa mumazuva ekunaya.
Kana moto, jecha rakaoma, yakaoma graphite poda kana yakaoma poda yekudzima moto inogona kushandiswa kudzima moto, uye mvura, furo, carbon dioxide kana halogenated hydrocarbon extinguishing agent (yakadai se1211 inodzima moto) haibvumirwi.