Qhov sib txawv tseem ceeb ntawm calcium chloride thiab sodium chloride yog tias calcium chloride molecule muaj ob lub chlorine atoms whereas sodium chloride molecule muaj ib qho chlorine atom. Tsis tas li ntawd, calcium chloride yog cov hmoov dawb dawb nrog cov khoom hygroscopic whereas, sodium chloride yog cov xim tsis muaj xim thiab cov ntshiab sodium chloride tsis yog hygroscopic.
Ob qho calcium chloride thiab sodium chloride yog cov tshuaj inorganic, alkaline compounds. Cov tshuaj formula ntawm calcium chloride yog CaCl2. Cov tshuaj formula ntawm sodium chloride yog NaCl.
Calcium Chloride yog dab tsi?
Calcium chloride yog CaCl2 uas muaj molar pawg ntawm 110.98 g / mol. Nws tshwm raws li cov khoom sib xyaw dawb uas yog hygroscopic. Qhov no txhais tau tias nws tuaj yeem nqus dej vapor los ntawm huab cua thaum raug rau huab cua. Cov tshuaj no tsis muaj ntxhiab tsw. Nws ntog nyob rau hauv qeb ntawm ntsev; peb hu ua ntsev ntawm calcium.
Cov tshuaj no yog soluble hauv dej. Vim nws qhov xwm txheej hygroscopic, qhov sib xyaw no feem ntau tshwm sim ua hydrated complex. Cov mis ntawm no hydrated complex yog CaCl2.(H2O)x nyob rau hauv uas x=0, 1, 2, 4 thiab 6. Cov hydrated compounds no pab tau nyob rau hauv de-icing txheej txheem thiab tswj cov plua plav. Daim ntawv anhydrous (nyob rau hauv uas x=0) yog ib qho tseem ceeb raws li ib tug descant vim lub hygroscopic xwm.
Daim duab 01: Pom ntawm Calcium Chloride
Lub melting point ntawm anhydrous calcium chloride yog nyob ib ncig ntawm 772-775◦C thaum boiling point yog 1935◦C. Thaum peb yaj cov compound no hauv dej, nws tsim ib hexaaqua complex; [Ca(H2O)62+ Qhov no hloov cov calcium thiab chloride ions hauv lub kev daws rau hauv lub xeev "dawb". Yog li, yog tias peb ntxiv ib qho phosphate rau cov kua dej no, nws muab cov calcium phosphate solid precipitate.
Sodium Chloride yog dab tsi?
Sodium chloride yog NaCl uas muaj molar loj ntawm 58.44 g / mol. Nyob rau hauv chav tsev kub thiab siab, qhov sib xyaw no zoo li cov khoom tsis muaj xim, tsis muaj xim. Nws yog tsw ntxhiab. Hauv nws daim ntawv ntshiab, qhov sib xyaw no tsis tuaj yeem nqus dej vapor. Li no, nws tsis yog hygroscopic.
Sodium chloride kuj yog ntsev; peb hu ua ntsev ntawm sodium. Muaj ib qho chorine atom rau txhua tus sodium atoms ntawm cov molecule. Cov ntsev no yog lub luag haujlwm rau salinity ntawm dej hiav txwv. Lub melting point yog 801◦C thaum boiling point yog 1413◦C. Nyob rau hauv sodium chloride crystals, txhua sodium cation yog ib puag ncig nrog rau chloride ions thiab vice versa. Yog li ntawd, peb hu ua crystal system raws li lub ntsej muag-centered cubic system.
Daim duab 02: Ntsev Crystals
Cov tshuaj no dissolves nyob rau hauv siab polar compounds xws li dej. Nyob ntawd, dej molecules nyob ib puag ncig txhua cation thiab anion. Txhua ion muaj, feem ntau ntawm cov sij hawm, rau dej molecules nyob ib ncig ntawm lawv. Txawm li cas los xij, pH ntawm aqueous sodium chloride nyob ib ncig ntawm pH7 vim qhov tsis muaj zog ntawm cov tshuaj chloride ion. Peb hais tias, tsis muaj kev cuam tshuam ntawm sodium chloride ntawm pH ntawm cov tshuaj.
Qhov txawv ntawm Calcium Chloride thiab Sodium Chloride yog dab tsi?
Calcium chloride yog ntsev ntawm calcium uas muaj cov tshuaj formula CaCl2 whereas sodium chloride yog ntsev ntawm sodium muaj cov tshuaj formula NaCl. Ob qho no yog cov ntsev sib xyaw. Ntxiv mus, txhua lub calcium chloride molecule muaj ob chlorine atoms ib calcium ion thaum txhua sodium chloride molecule muaj ib chlorine atom ib sodium ion. Tsis tas li ntawd, lawv cov molar pawg sib txawv ntawm ib leeg thiab; Cov molar loj ntawm calcium chloride yog 110.98 g / mol, thiab molar loj ntawm sodium chloride yog 58.44 g / mol.
Summary – Calcium Chloride vs Sodium Chloride
Calcium chloride thiab sodium chloride yog cov tshuaj ntsev uas muaj alkaline. Ob lub tebchaw no muaj chloride ions hauv lawv cov qauv, tab sis nyob rau hauv qhov sib txawv. Qhov sib txawv tseem ceeb ntawm calcium chloride thiab sodium chloride yog tias ib lub calcium chloride molecule muaj ob lub chlorine atoms whereas ib sodium chloride molecule muaj ib chlorine atom.
