Qhov sib txawv tseem ceeb ntawm sodium citrate thiab citric acid yog sodium citrate muaj sodium li cation, whereas citric acid muaj hydrogen li cation.
Qhov tseeb, sodium citrate yog muab los ntawm citric acid thiab hauv cov txheej txheem ntawd, cov hydrogen cations hauv citric acid molecule raug hloov los ntawm sodium cations.
Sodium Citrate yog dab tsi?
Sodium citrate yog ib qho inorganic compound uas muaj sodium cations thiab citrate anions nyob rau hauv sib txawv piv. Muaj peb hom loj ntawm sodium citrate molecules li monosodium citrate, disodium citrate thiab trisodium citrate molecule. Sib sau ua ke, peb cov ntsev no paub los ntawm tus lej E 331. Txawm li cas los xij, feem ntau daim ntawv yog trisodium citrate ntsev.
Daim duab 01: Cov Qauv Tshuaj ntawm Sodium Citrate
Trisodium citrate muaj cov tshuaj formula Na3C6H5O7. Feem ntau ntawm cov sij hawm, qhov sib xyaw no hu ua feem ntau yog sodium citrate vim tias nws yog ntau hom sodium citrate ntsev. Cov khoom no muaj saline zoo li me ntsis tart tsw. Tsis tas li ntawd, qhov sib xyaw no yog qhov yooj yim me ntsis, thiab peb tuaj yeem siv nws los ua cov kev daws teeb meem nrog rau citric acid. Cov tshuaj no zoo li cov hmoov dawb crystalline hmoov. Qhov tseem ceeb, sodium citrate yog siv hauv kev lag luam khoom noj khoom haus raws li cov khoom noj ntxiv. Lub hom phiaj ntawm kev siv cov khoom sib xyaw no yog kom tau txais qhov tsw los yog ua cov khoom noj.
Citric Acid yog dab tsi?
Citric acid yog cov organic acid tsis muaj zog peb tuaj yeem pom hauv cov txiv hmab txiv ntoo citrus. Muaj ntau qhov kev siv ntawm qhov sib xyaw no, yog li cov tuam txhab lag luam nyiam tsim cov citric acid ntau hauv ib xyoos. Qee qhov kev siv tseem ceeb suav nrog kev siv los ua cov kua qaub, ua cov tshuaj tsw qab thiab chelate. Muaj ob hom loj ntawm cov tshuaj no raws li daim ntawv anhydrous thiab daim ntawv monohydrated.
Daim ntawv anhydrous ntawm citric acid yog daim ntawv tsis muaj dej. Nws tshwm raws li cov khoom tsis muaj xim, thiab nws tsis muaj ntxhiab thiab. Tsis muaj dej hauv nws daim ntawv qhuav, granulated. Peb tuaj yeem tsim cov tshuaj no los ntawm crystallization los ntawm dej kub.
Cov citric acid anhydrous yog tsim los ntawm daim ntawv monohydrate ntawm 78 ° C. Qhov ceev ntawm daim ntawv anhydrous yog 1.665 g / cm3. Nws melts ntawm 156 ° C, thiab lub boiling point ntawm no compound yog 310 ° C. Cov tshuaj formula ntawm no compound yog C6H8O7 thaum molar mass yog 192.12 g / mol.
Monohydrate citric acid yog cov dej uas muaj citric acid. Nws muaj ib tug dej molecule txuam nrog ib tug citric acid molecule. Peb hu cov dej no ua cov dej crystallization. Daim ntawv no ntawm citric acid yog tsim los ntawm crystallization los ntawm dej txias.
Qhov txawv ntawm Sodium Citrate thiab Citric Acid yog dab tsi?
Sodium citrate yog los ntawm citric acid. Txawm li cas los xij, qhov sib txawv tseem ceeb ntawm sodium citrate thiab citric acid yog sodium citrate muaj sodium li cation, hos citric acid muaj hydrogen li cation. Ntxiv rau qhov no, sodium citrate zoo li cov hmoov dawb crystalline thaum citric acid yog cov kua tsis muaj xim ntawm chav tsev kub. Ntxiv mus, sodium citrate yog me ntsis yooj yim thaum citric acid yog acidic. Txawm li cas los xij, ob qho tib si cov ntsiab lus tseem ceeb yog cov khoom noj khoom haus thiab ua cov khoom noj khoom haus.
Cov ntawv sau hauv qab no qhia ntau qhov sib txawv ntawm sodium citrate thiab citric acid hauv daim ntawv.
Summary – Sodium Citrate vs Citric Acid
Ob qho tib si sodium citrate thiab citric acid muaj cov organic tshuaj moiety. Sodium citrate yog tsim los ntawm citric acid. Qhov sib txawv tseem ceeb ntawm sodium citrate thiab citric acid yog sodium citrate muaj sodium li cation, whereas citric acid muaj hydrogen li cation.
