Qhov sib txawv tseem ceeb ntawm kev tshem tawm cov tshuaj thiab emulsion yog qhov kev daws teeb meem yog qhov sib xyaw ntawm ob lub miscible Cheebtsam ua ib homogenous sib xyaw nrog cov khoom sib piv me me, thiab kev ncua yog qhov sib xyaw ua ke ntawm ob lossis cov khoom sib xyaw uas qhov loj me me. loj dua, whereas emulsion yog sib tov ntawm ob immiscible kua los yog kua uas yog ib feem miscible.
Ib tshuaj yog sib tov ntawm ob los yog ntau yam tshuaj uas feem ntau nyob rau hauv cov kua hauv lub xeev, thaum lub sij hawm ncua kev kawm ntawv yog ib tug turbid dispersion muaj loj hais uas pom ntawm qhov muag liab qab. Ib qho emulsion, ntawm qhov tod tes, yog ib qho zoo dispersion ntawm feeb ntawm ib cov kua hauv lwm qhov uas nws tsis soluble lossis miscible.
Kev daws yog dab tsi?
Ib tshuaj tuaj yeem piav qhia raws li kev sib xyaw ntawm ob lossis ntau yam tshuaj, thiab nws qhov tseem ceeb tshwm sim hauv cov kua dej. Feem ntau, cov tshuaj muaj ob yam tseem ceeb: cov kuab tshuaj thiab cov kuab tshuaj. Peb tuaj yeem yaj cov kua nplaum rau hauv cov kuab tshuaj uas tsim nyog. Qhov kev sib xyaw no tshwm sim nyob ntawm qhov polarities ntawm cov kuab tshuaj thiab cov kuab tshuaj ("zoo li yaj zoo li" - polar solutes yaj hauv cov kuab tshuaj polar thiab nonpolar solutes yaj hauv cov kuab tshuaj tsis muaj polar, tab sis cov polar solutes tsis yaj hauv cov kuab tshuaj). Ntxiv mus, qhov xwm ntawm kev daws yog homogeneous. Qhov no txhais tau hais tias cov kuab tshuaj thiab cov kuab tshuaj tau muab faib sib npaug thoob plaws qhov sib xyaw no.
Ib tshuaj feem ntau tshwm sim raws li cov kua ntshiab uas tsis muaj turbidity. Tsis tas li ntawd, ib qho kev daws teeb meem yog ruaj khov thiab diffuses sai heev. Cov khoom ntawm cov tshuaj yog qis dua 1 nanometer hauv qhov ntev. Yog li ntawd, cov khoom no tsis tuaj yeem pom ntawm qhov muag liab qab. Tsis tas li ntawd, cov khoom no tsis nyob ntawm tus kheej; Peb tuaj yeem daws cov khoom hauv cov tshuaj tsuas yog los ntawm centrifugation. Tsis tas li ntawd, peb tsis tuaj yeem cais lawv cov khoom los ntawm kev pom los yog sedimentation.
Kev Ncua Sijhawm yog dab tsi?
Ib ncua kev kawm ntawv yog ib qho turbid dispersion muaj cov khoom loj uas pom ntawm qhov muag liab qab. Cov khoom no muaj qhov ntev tshaj 1 micrometer. Feem ntau, cov no yog cov khoom uas muaj peev xwm nyob ntawm tus kheej thiab nyob rau hauv sedimentation. Tsis tas li ntawd, cov khoom hauv qhov raug ncua tuaj yeem raug cais tawm ntawm kev ncua los ntawm kev pom. Qhov xwm ntawm kev ncua yog heterogeneous; Qhov no txhais tau hais tias cov khoom tsis sib npaug thoob plaws qhov raug ncua. Txij li thaum nws muaj qhov tsis sib xws thiab cov khoom loj, nws tuaj yeem tawg ib lub teeb ci uas dhau los ntawm nws (opaque xwm). Tsis tas li ntawd, nws tsis qhia diffusion. Tsis tas li ntawd, kev ncua yuav lossis tsis tuaj yeem pom cov nyhuv Tyndall thiab Brownian tsab ntawv tsa suab.
Qhov sib txawv ntawm qhov raug tshem tawm los ntawm cov khoom sib xyaw uas tsis yaj tab sis nyob twj ywm raug tshem tawm thoob plaws hauv qhov loj ntawm cov kuab tshuaj. Cov khoom no ntab ncig dawb hauv nruab nrab. Ib qho piv txwv zoo ntawm kev ncua yog xuab zeb hauv dej. Peb tuaj yeem pom cov xuab zeb tshem tawm hauv qhov kev ncua no siv lub tshuab tsom. Cov khoom uas raug tshem tawm no tau kho nrog lub sijhawm yog tias peb khaws qhov kev ncua tsis muaj kev cuam tshuam.
YEmulsion yog dab tsi?
Ib qho emulsion tuaj yeem piav qhia tias yog qhov zoo ntawm cov tee dej ntawm ib cov kua hauv lwm qhov uas nws tsis soluble lossis miscible. Nyob rau hauv lwm yam lus, nws yog ib tug sib tov ntawm ob kua uas yog immiscible nrog ib leeg. Ib qho emulsion yog ib hom colloid. Peb feem ntau nyiam siv ob lo lus emulsion thiab colloid interchangeably, tab sis lub sij hawm emulsion tshwj xeeb piav qhia txog kev sib xyaw ntawm ob cov kua uas tsim cov colloid.
Feem ntau, ib qho emulsion muaj ob theem: ib ntu txuas ntxiv thiab ntu tsis tu ncua. Nyob rau hauv no ob-theem system, lub discontinuous theem yog faib thoob plaws hauv lub nruam theem. Thaum lub sij hawm tas mus li yog dej, peb tuaj yeem hu ua emulsion lossis colloid li hydrocolloid. Lub ciam teb ntawm ob cov kua hauv ib qho emulsion yog hu ua "interface."
Tsis tas li ntawd, ib qho emulsion muaj qhov pom huab. Cov tsos mob no yog tshwm sim los ntawm lub xub ntiag ntawm ib theem interface uas muaj peev xwm tawg tau ib lub teeb beam uas dhau los ntawm emulsion. Thaum tag nrho cov teeb hluav taws xob tau tawg ua ke sib npaug, ib qho emulsion zoo li cov kua dawb.
Dab tsi yog qhov txawv ntawm cov tshuaj Suspension thiab emulsion?
Qhov sib txawv tseem ceeb ntawm kev tshem tawm cov tshuaj thiab emulsion yog qhov kev daws teeb meem yog qhov sib xyaw ntawm ob lub miscible Cheebtsam ua ib homogenous sib xyaw nrog cov khoom sib piv me me, thiab kev ncua yog qhov sib xyaw ua ke ntawm ob lossis cov khoom sib xyaw uas qhov loj me me. loj dua, whereas emulsion yog sib tov ntawm ob immiscible kua los yog kua uas yog ib feem miscible.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm cov tshuaj raug ncua thiab emulsion hauv daim ntawv tabular rau kev sib piv ntawm ib sab.
Summary – Solution vs Suspension vs Emulsion
Qhov sib txawv tseem ceeb ntawm kev tshem tawm cov tshuaj thiab emulsion yog qhov kev daws teeb meem yog qhov sib xyaw ntawm ob lub miscible Cheebtsam ua ib homogenous sib xyaw nrog cov khoom sib piv me me, thiab kev tshem tawm yog qhov sib xyaw ua ke ntawm ob lossis cov khoom sib xyaw uas qhov loj me me. loj dua, whereas emulsion yog sib tov ntawm ob immiscible kua los yog kua uas yog ib feem miscible.
