Boron yog cov khoom siv tshuaj nrog lub cim B thiab atomic tooj 5. Nyob rau hauv nws daim ntawv crystalline nws yog nkig, tsaus, ci ntsa iab metalloid; nyob rau hauv nws daim ntawv amorphous nws yog xim av hmoov.
boron nyob qhov twg?
Boron tshwm sim raws li ib qho orthoboric acid nyob rau hauv qee lub caij nplooj ntoos hlav volcanic, thiab raws li borates hauv cov zaub mov borax thiab colemanite. Ntau cov borax deposits muaj nyob rau hauv Qaib Cov Txwv. Txawm li cas los xij, tam sim no qhov tseem ceeb tshaj plaws ntawm boron yog rasorite. Qhov no pom muaj nyob hauv Mojave Desert hauv California, USA.
Yuav ua li cas thiaj tau boron?
Hnub no, boron tau txais los ntawm cua sov borax (Na2B4O7 ·10H2O) nrog carbon, txawm tias lwm txoj hauv kev siv yog tias yuav tsum muaj cov purity boron. Boron yog siv hauv pyrotechnics thiab flares los tsim cov xim ntsuab. Boron kuj tau siv nyob rau hauv qee lub foob pob hluav taws ua qhov hluav taws kub.
pob zeb twg yog boron pom hauv?
Boron yog ib yam khoom tshwm sim. Hauv qhov xwm txheej nws pom tau ua ke nrog cov pa oxygen thiab lwm yam ntuj tsim ua ntau yam sib txawv hu ua borates. Borates yog dav faib nyob rau hauv cov xwm, muaj nyob rau hauv dej hiav txwv, sedimentary pob zeb, thee, shalethiab ib co av.
Yuav ua li cas boron rho tawm?
Boron yog muab rho tawm raws li cov tshuaj tiv thaiv ntawm boric acid thiab glycol, thaum lub boric acid ester yog hydrolyzed thaum lub sij hawm rov qab-extraction ntawm alkali los yog acid. … Yog li ntawd, ob qho tib siQhov concentration ntawm NaOH thiab theem piv tau raug soj ntsuam ntxiv los ntawm tsib-theem centrifugal extraction.
