Barium hlau

National Standard Number	ib 43009
CAS Nr	7440-39-3 : kuv
Suav npe	Barium hlau
English npe	barium
Alias	barium
Cov mis mos molecular	Ba	Qhov tsos thiab tus cwj pwm	Lustrous silvery-dawb hlau, daj nyob rau hauv nitrogen, me ntsis ductile
Molecular hnyav	137.33 Nws	Boiling point	1640 ℃
Melting point	725 ℃	Solubility	Insoluble nyob rau hauv inorganic acids, insoluble nyob rau hauv ntau cov kuab tshuaj
Qhov ntom	Cov txheeb ze ntom ntom (dej = 1) 3.55	Kev ruaj ntseg	Tsis ruaj khov
Cov cim phom sij	10 (cov khoom siv hluav taws xob sib cuag nrog cov dej noo)	Kev siv thawj zaug	Siv hauv kev tsim cov ntsev barium, kuj siv los ua tus neeg sawv cev degassing, ballast thiab degassing alloy

2. Kev cuam tshuam rau ib puag ncig.

i. kev phom sij

Txoj kev invasion: inhalation, ingestion.
Kev phom sij rau kev noj qab haus huv: Barium hlau yuav luag tsis muaj tshuaj lom. Soluble barium ntsev xws li barium chloride, barium nitrate, thiab lwm yam. (barium carbonate ntsib gastric acid los tsim barium chloride, uas tuaj yeem nqus tau los ntawm txoj hnyuv) tuaj yeem ua rau mob hnyav tom qab noj, nrog rau cov tsos mob ntawm plab zom mov khaus, cov leeg nqaij tuag tes tuag taw. , myocardial kev koom tes, thiab cov ntshav tsis muaj poov tshuaj. Ua pa cov leeg tuag tes tuag taw thiab myocardial puas tuaj yeem ua rau tuag taus. Kev nqus dej ntawm cov hmoov av uas muaj kuab lom barium tuaj yeem ua rau mob hnyav barium lom, kev ua haujlwm zoo ib yam li kev lom ntawm qhov ncauj, tab sis cov tshuaj tiv thaiv kab mob sib dua. Lub sij hawm ntev raug rau barium tebchaw yuav ua rau salivation, tsis muaj zog, ua tsis taus pa luv, o thiab yaig ntawm qhov ncauj mucosa, rhinitis, tachycardia, nce ntshav siab thiab plaub hau poob. Kev nqus tau ntev ntev ntawm cov hmoov av uas tsis muaj kuab lom, xws li barium sulfate, tuaj yeem ua rau barium pneumoconiosis.

ii. toxicological cov ntaub ntawv thiab ib puag ncig tus cwj pwm

Cov yam ntxwv muaj kev phom sij: tsis tshua muaj tshuaj lom neeg reactivity, tuaj yeem ua rau huab cua tshwm sim thaum rhuab mus rau lub xeev molten, tab sis cov hmoov av tuaj yeem hlawv ntawm chav tsev kub. Nws tuaj yeem ua rau combustion thiab tawg thaum raug tshav kub, nplaim taws lossis tshuaj tiv thaiv. Nyob rau hauv kev sib cuag nrog dej los yog kua qaub, nws reacts hnyav thiab tso tawm hydrogen gas los ua combustion. Nyob rau hauv kev sib cuag nrog fluorine, chlorine, thiab lwm yam, yuav ua rau muaj teeb meem tshuaj tiv thaiv. Thaum sib cuag nrog kua qaub los yog dilute acid, nws yuav ua rau combustion thiab tawg.
combustion (decomposition) khoom: barium oxide.

3. Txoj kev saib xyuas xwm txheej ceev hauv qhov chaw.

　

4. Kev soj ntsuam hauv chav kuaj.

Potentiometric titration (GB / T14671-93, dej zoo)
Atomic absorption method (GB/T15506-95, dej zoo)
Atomic Absorption Method Manual for Experimental Analysis and Evaluation of Solid Wastes, Txhais los ntawm Tuam Tshoj Environmental Monitoring General Station thiab lwm yam

5. Ib puag ncig tus qauv.

Lub qub Soviet Union	Kev tso cai siab tshaj plaws ntawm cov khoom phom sij hauv chav ua haujlwm huab cua	0.5mg / m3
Tuam Tshoj (GB/T114848-93)	Cov dej hauv av zoo tus qauv (mg / L)	Chav Kawm I 0.01; Chav Kawm II 0.1; Chav Kawm III 1.0; Chav Kawm IV 4.0; Chav Kawm V saum toj 4.0
Tuam Tshoj (yuav tsum tau enacted)	Kev tso cai siab tshaj plaws ntawm cov khoom phom sij hauv cov dej haus	0.7 mg/l

6. Kev kho mob xwm txheej ceev thiab kev pov tseg.

i. teb thaum muaj xwm txheej kub ntxhov

Cais tawm qhov chaw paug paug thiab txwv kev nkag mus. Txiav tawm qhov hluav taws kub. Cov neeg ua haujlwm xwm txheej kub ntxhov tau qhia kom hnav tus kheej nqus plua plav qhov ncauj qhov ntswg thiab khaub ncaws tiv thaiv hluav taws. Tsis txhob tuaj rau hauv kev sib cuag ncaj qha nrog cov nchuav. Cov nchuav me me: Tsis txhob tsa cov plua plav thiab sau rau hauv cov thawv qhuav, huv si, npog nrog lub duav huv. Hloov pauv rau kev rov ua dua tshiab. Cov dej nchuav loj: Npog nrog cov ntawv yas los yog canvas kom txo qis kev tawg. Siv cov cuab yeej tsis muaj teeb meem los hloov thiab rov ua dua tshiab.

ii. kev tiv thaiv

Kev tiv thaiv ua pa: Feem ntau tsis tas yuav tsum muaj kev tiv thaiv tshwj xeeb, tab sis nws raug pom zoo tias yuav tsum hnav lub npog ntsej muag tiv thaiv plua plav rau hauv qhov xwm txheej tshwj xeeb.
Kev tiv thaiv qhov muag: Hnav cov tsom iav kev nyab xeeb tshuaj.
Kev tiv thaiv lub cev: Hnav khaub ncaws tiv thaiv chemical.
Kev tiv thaiv tes: Hnav hnab looj tes roj hmab.
Lwm yam: Kev haus luam yeeb yog txwv tsis pub nyob ntawm qhov chaw ua haujlwm. Ua tib zoo saib xyuas tus kheej.

iii. kev pab thawj zaug

Kev sib cuag ntawm daim tawv nqaij: Tshem tawm cov khaub ncaws tsis huv thiab yaug daim tawv nqaij kom huv si nrog xab npum thiab dej.
KEV TIV THAIV: Nqa daim tawv muag thiab yaug nrog dej los yog ntsev. Nrhiav kev kho mob.
INHALATION: Tshem tawm ntawm qhov chaw sai sai rau huab cua ntshiab. Khaws txoj hauv kev qhib. Yog ua pa nyuaj, muab cov pa oxygen. Yog tias ua tsis taus pa, muab kev ua pa tawm tam sim ntawd. Nrhiav kev kho mob.
Kev noj haus: Haus dej sov kom ntau, ua kom ntuav, plab hnyuv nrog 2% -5% sodium sulfate tov, thiab ua rau raws plab. Nrhiav kev kho mob.

Txoj kev tua hluav taws: dej, ua npuas ncauj, carbon dioxide, halogenated hydrocarbons (xws li 1211 extinguishing agent) thiab lwm yam tua hluav taws. Qhuav graphite hmoov lossis lwm cov hmoov qhuav (xws li cov xuab zeb qhuav) yuav tsum tau siv los tua hluav taws.