Ib tsab xov xwm piav qhia txog kev paub txog tooj liab
Copper (Cuprum) yog cov khoom siv hlau thiab cov khoom hloov pauv. Nws cov cim tshuaj yog Cu, Askiv tooj liab, thiab nws tus lej atomic yog 29. Ntshiab tooj liab yog cov hlau mos. Thaum txiav, qhov saum npoo yog xim liab-txiv kab ntxwv nrog lub ntsej muag xim hlau, thiab cov tooj liab ntshiab yog ntshav-liab.
Nws muaj qhov zoo ductility, siab thermal conductivity thiab hluav taws xob conductivity, yog li nws yog cov khoom siv feem ntau hauv cov cables thiab cov khoom siv hluav taws xob thiab hluav taws xob. Nws tseem tuaj yeem siv los ua cov khoom siv hauv tsev thiab tuaj yeem tsim los ntawm ntau hom alloys. Copper alloys muaj cov cuab yeej zoo heev thiab tsis muaj zog, qhov tseem ceeb tshaj plaws yog tooj liab thiab tooj dag. Tsis tas li ntawd, tooj liab yog cov hlau ruaj khov uas tuaj yeem rov ua dua ntau zaus yam tsis tau poob nws cov khoom siv kho tshuab.
Divalent tooj liab ntsev yog cov khoom siv tooj liab ntau tshaj plaws. Nws cov hydrated ions feem ntau tshwm xiav, thaum chlorine li ligand tshwm ntsuab. Nws yog lub hauv paus ntawm cov xim ntawm cov zaub mov xws li azurite thiab turquoise, thiab tau siv dav los ua cov xim hauv keeb kwm. Patina (piv txwv tooj liab carbonate) tshwm sim thaum tooj liab vaj tse yog corroded. Kho kom zoo nkauj kos duab feem ntau yog siv hlau tooj liab thiab tooj liab uas muaj pigments.
Tooj liab yog ib qho ntawm cov hlau qub tshaj plaws siv los ntawm tib neeg. Raws li thaum ntxov ua ntej keeb kwm, tib neeg pib mine qhib qhov chaw tooj liab thiab siv cov tooj liab tau los ua riam phom, cuab yeej thiab lwm yam khoom siv. Kev siv tooj liab muaj kev cuam tshuam loj heev rau kev nce qib ntawm tib neeg kev vam meej thaum ntxov. Tooj liab yog ib yam hlau uas pom nyob rau hauv lub ntiaj teb crust thiab dej hiav txwv. Cov ntsiab lus tooj liab nyob rau hauv lub ntiaj teb crust yog hais txog 0.01%. Nyob rau hauv ib qho kev tso nyiaj tooj liab, cov ntsiab lus tooj liab tuaj yeem ncav cuag 3% txog 5%. Tooj liab nyob rau hauv qhov feem ntau tshwm sim raws li cov tebchaw, uas yog, tooj liab ores.
Tooj liab tsis tshua muaj xov tooj, thiab cov hlau hlau tuaj yeem hnov mob nrog tooj liab sulfate kom tshem tawm cov tooj liab. Elemental tooj liab yog insoluble hauv non-oxidizing acids.
Qhov ceev ntawm tooj liab yog 8-9g/cm3; melting point yog 1083 degree. Ntshiab tooj liab muaj hluav taws xob zoo conductivity thiab yog dav siv nyob rau hauv kev tsim cov hlau, cables, txhuam, thiab lwm yam.; nws muaj cov thermal conductivity zoo thiab feem ntau yog siv los tsim cov cuab yeej sib nqus thiab cov ntsuas uas yuav tsum tiv thaiv kev cuam tshuam sib nqus, xws li compasses, aviation instruments, thiab lwm yam; nws muaj cov yas zoo heev thiab yooj yim rau cua sov Ntxig thiab txias ua haujlwm tuaj yeem ua rau cov khoom siv tooj liab xws li cov raj, rods, xov hlau, strips, strips, phaj, thiab foils. Muaj ob hom khoom siv tooj liab ntshiab: cov khoom smelted thiab cov khoom ua tiav. "
