Qhov sib txawv tseem ceeb ntawm pob zeb ntsev thiab calcium chloride yog tias ua cov tshuaj de-icing, calcium chloride ua haujlwm tau zoo ntawm qhov kub thiab txias dua li qhov ua tau zoo ntawm pob zeb ntsev ntawm qhov kub thiab txias.
Ob lub pob zeb ntsev thiab calcium chloride yog qhov tseem ceeb uas yog cov tshuaj de-icing. Txawm li cas los xij, lawv qhov ua tau zoo nyob ntawm qhov kub ntawm qhov peb siv nws ua tus neeg sawv cev de-icing. Calcium chloride tuaj yeem tiv thaiv kev tsim cov dej khov ntawm dej ntawm qhov kub thiab txias, nyob ib ncig ntawm -52 ° C. Tab sis pob zeb ntsev ua haujlwm zoo dua nyob ib puag ncig 0 °C.
pob zeb ntsev yog dab tsi?
Pob zeb ntsev yog cov ntxhia ntuj uas muaj sodium chloride. Yog li, cov tshuaj formula yog NaCl. Lub npe mineralogical ntawm cov pob zeb no yog halite. Pob zeb ntsev yog lub npe nrov. Feem ntau, cov ntxhia no tsis muaj xim lossis dawb. Tab sis, qee zaum, nws yuav muaj xim xws li lub teeb xiav, xiav tsaus, ntshav, liab, liab, txiv kab ntxwv, daj lossis grey. Vim tias, nws yog vim muaj cov impurities nrog rau sodium chloride.
Vim cov tshuaj formula ntawm chav tsev rov ua dua ntawm halite yog NaCl, cov mis loj yog 58.43 g / mol. Nws muaj ib tug cubic crystal qauv. Cov ntxhia yog nkig, thiab cov ntxhia pob zeb yog dawb. Thaum xav txog qhov tshwm sim ntawm cov ntxhia no, nws muaj nyob rau hauv cov txaj loj ntawm sedimentary evaporites. Cov evaporites tsim vim qhuav ntawm pas dej, hiav txwv, thiab lwm yam.
Daim duab 01: Paj yeeb xim Halite
Qhov tseem ceeb tshaj plaws ntawm kev siv ntsev no yog tswj dej khov. Brine yog ib qho kev daws ntawm dej thiab ntsev. Txij li cov brine muaj qhov qis qis dua piv rau cov dej ntshiab, peb tuaj yeem muab cov brine lossis pob zeb ntsev rau hauv dej khov (ntawm 0 ° C). Qhov no yuav ua rau cov dej khov yaj. Yog li ntawd, nyob rau hauv huab cua txias, tib neeg siv cov ntsev no los kis rau hauv lawv txoj kev taug kev thiab txoj kev tsheb kom yaj cov dej khov.
Calcium Chloride yog dab tsi?
Calcium chloride yog ib qho inorganic compound thiab ntsev uas muaj cov tshuaj formula CaCl 2 Nws yog xim tsis muaj kob thiab crystalline uas tshwm sim nyob rau hauv ib qho khoom hauv lub xeev ntawm chav tsev kub. Nws feem ntau tshwm sim raws li hydrated ntsev es tsis yog tus neeg compound. Li no cov tshuaj formula yog CaCl2(H2O) x. Ntawm no, x tuaj yeem yog 0, 1, 2, 4, lossis 6. Cov ntsev no yog hygroscopic. Yog li, peb tuaj yeem siv nws ua lub tshuab desiccant.
Daim duab 02: Calcium Chloride Appearance
Cov molar loj ntawm cov compound yog 110.98 g / mol. Nws muaj cov qauv siv lead ua orthorhombic hauv nws daim ntawv anhydrous thiab trigonal crystal qauv hauv nws daim ntawv hexahydrate. Thaum xav txog qhov tshwm sim ntawm qhov sib xyaw no, nws tsis tshua muaj tshwm sim hauv qhov xwm txheej li cov ntxhia sinjarite (dihydrate form) lossis antarcticite (hexahydrate form). Feem ntau, rau yuav luag tag nrho cov kev siv ntawm no compound, peb tsim nws los ntawm limestone. Qhov no ua raws li cov khoom lag luam ntawm cov txheej txheem Solvay. Los yog lwm yam, peb tuaj yeem tau txais los ntawm kev ua kom huv ntawm brine.
Ntawm no ib yam nkaus, daim ntawv thov tseem ceeb ntawm qhov sib xyaw no yog nyob rau hauv de-icing. Nws tuaj yeem tiv thaiv kev tsim dej khov los ntawm kev nyuaj siab ntawm qhov dej khov ntawm dej. Qhov tseem ceeb tshaj, qhov sib xyaw no muaj txiaj ntsig zoo dua ntawm qhov kub qis dua li tus neeg sawv cev de-icing.
Qhov txawv ntawm Pob Zeb Ntsev thiab Calcium Chloride yog dab tsi?
Pob zeb ntsev yog cov ntxhia ntuj uas muaj sodium chloride whereas calcium chloride yog ib qho inorganic compound thiab ntsev uas muaj cov tshuaj formula CaCl2Chemically, qhov no yog qhov sib txawv ntawm pob zeb ntsev thiab calcium chloride. Txij li ob cov ntaub ntawv no muaj cov tshuaj sib txawv, cov molar loj yog sib txawv ntawm ib leeg: cov mis loj ntawm pob zeb ntsev yog 58.43 g / mol thaum molar loj ntawm calcium chloride yog 110.98 g / mol. Li no, raws li cov khoom, qhov no yog qhov sib txawv tseem ceeb ntawm pob zeb ntsev thiab calcium chloride.
Thaum xav txog cov ntawv thov, ob lub tebchaw no tseem ceeb hauv kev tswj dej khov. Yog li ntawd, qhov sib txawv tseem ceeb ntawm pob zeb ntsev thiab calcium chloride yog tias, raws li cov neeg ua haujlwm de-icing, calcium chloride muaj txiaj ntsig zoo ntawm qhov kub qis dua li qhov ua tau zoo ntawm pob zeb ntsev ntawm qhov kub thiab txias.
Cov duab hauv qab no muab cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm pob zeb ntsev thiab calcium chloride.
Summary – Pob zeb ntsev vs Calcium Chloride
Ob lub pob zeb ntsev thiab calcium chloride yog qhov tseem ceeb hauv kev tswj cov dej khov. Tsis tau lawv cov hauj lwm zoo sib txawv ntawm ib leeg nyob ntawm qhov kub thiab txias. Yog li ntawd, qhov sib txawv tseem ceeb ntawm pob zeb ntsev thiab calcium chloride yog cov de-icing cov neeg ua haujlwm, calcium chloride muaj txiaj ntsig zoo ntawm qhov kub qis dua li qhov ua tau zoo ntawm pob zeb ntsev ntawm qhov kub thiab txias.
