Qhov Tseem Ceeb Qhov txawv - p Alkalinity vs m Alkalinity
Lo lus alkalinity yog hais txog tus nqi ntawm cov tshuaj aqueous xav tau los ua kom cov kua qaub los ntawm cov kua qaub. Txawm hais tias alkalinity muaj feem xyuam rau lub hauv paus ntawm cov tshuaj aqueous xws li dej, ntshav, thiab lwm yam, nws ntsuas qhov kev tiv thaiv ntawm cov tshuaj ntawm pH hloov vim muaj cov kua qaub. Cov ions loj uas ua rau cov alkalinity ntawm dej yog Hydroxyl ions (OH–), Carbonate ions (CO32-) thiab Bicarbonate ions (HCO3-). Alkalinity yog categorized rau hauv peb pawg raws li qhov kawg taw tes muab thaum lub aqueous yooj yim tov yog titrated nrog ib tug acid. Caustic Alkalinity, p Alkalinity, thiab m Alkalinity yog pawg no. Kab lus no tsom rau qhov sib txawv ntawm p alkalinity thiab m alkalinity. Cov npe p Alkalinity thiab m Alkalinity yog muab nyob ntawm qhov ntsuas uas siv rau hauv cov txheej txheem titration. Qhov sib txawv tseem ceeb ntawm p Alkalinity thiab m Alkalinity yog p Alkalinity txiav txim siab alkalinity ntawm tag nrho cov Hydroxyl thiab ib nrab ntawm cov Carbonate whereas m Alkalinity txiav txim siab alkalinity ntawm tag nrho cov Hydroxyl, Carbonate thiab Bicarbonate. m Alkalinity raug suav hais tias yog qhov dav dav lossis tag nrho alkalinity vim tias hom carbonate ua lub luag haujlwm tseem ceeb hauv tag nrho cov alkalinity ntawm dej.
Alkalinity yog dab tsi?
Lub sij hawm p Alkalinity stands rau "Phenolphthalein - Alkalinity". Nws yog qhov ntsuas ntawm Hydroxide (OH–) thiab carbonate ion (CO3-2) tus nqi. Nws yog txiav txim los ntawm titrating ib tug qauv dej nrog ib tug acid ntawm ib tug paub concentration nyob rau hauv lub xub ntiag ntawm phenolphthalein raws li qhov taw qhia. Txhawm rau kom nkag siab tias yuav ua li cas hauv qhov titration no, nws yog ib qho tseem ceeb kom paub txog kev sib cais ntawm carbonic acid.
Daim duab 01: Titration nkhaus rau carbonic acid siv phenolphthalein thiab thymol xiav ua ntsuas.
Cov nkhaus saum toj no qhia tias muaj dab tsi tshwm sim thaum lub sij hawm titration ntawm carbonic acid. Nws yog diprotic acid thiab tshem tawm ob lub hydrogen atoms uas hu ua protons. Sab qaum ntawm qhov nkhaus qhia tau hais tias cov carbonate thiab hydroxyl ion npaum li cas tau muab rau hauv pH ntau ntawm phenolphthalein. Txij li cov pH ntau yam uas phenolphthalein muab cov xim hloov yog 8.3 - 10.0, p Alkalinity yog ntsuas hauv qhov pH ntau. Ntawm no, kev sib raug zoo hauv qab no yog siv los piav qhia txog alkalinity ntawm cov qauv tshwj xeeb uas siv rau titration.
1 mL acid=1 meq/L alkalinity
Alkalinity yog dab tsi?
Tag nrho kev ntsuas ntawm Hydroxide (OH–), bicarbonate (HCO3–) thiab carbonate (CO32-) ions yog muab los ntawm m Alkalinity. Tsab ntawv m yog hais txog Methyl txiv kab ntxwv. Nws yog qhov taw qhia uas siv los txiav txim siab tag nrho alkalinity muab los ntawm cov saum toj no hydroxide thiab carbonate hom. Thaum methyl txiv kab ntxwv ntxiv, nws muab nws cov xim hloov tsuas yog nyob rau hauv nws cov pH ntau yam uas yog, 3.1 - 4.4. Txij li tsuas yog ib txoj kab ntawm lwm cov acids yaj hauv dej tsuas yog carbonic acid, m Alkalinity tuaj yeem suav tias yog tag nrho alkalinity vim nws muab tag nrho cov carbonate alkalinity.
p Alkalinity thiab m Alkalinity yog dab tsi?
p Alkalinity vs m Alkalinity |
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| p alkalinity yog ntsuas ntawm alkalinity muab los ntawm hydroxide ions thiab ib nrab ntawm cov carbonate alkalinity. | m alkalinity yog ntsuas ntawm alkalinity muab los ntawm hydroxide ions thiab tag nrho cov carbonate alkalinity. |
| Indicator | |
| Phenolphthalein qhia yog siv los txiav txim siab p alkalinity. | Methyl txiv kab ntxwv yog siv los txiav txim siab m alkalinity. |
| pH Range | |
| p alkalinity ntsuas ntawm thaj tsam ntawm 8.3 - 10.0 pH. | m alkalinity ntsuas ntawm pH ntau ntawm 3.1 - 4.4. |
| Cov kab mob carbonate | |
| p alkalinity feem ntau txiav txim siab OH– thiab HCO3- hom. | m alkalinity txiav txim siab OH–, HCO3– thiab CO 32- hom. |
Summary – p Alkalinity vs m Alkalinity
Los ntawm kev ntsuas p alkalinity thiab m alkalinity, ib tus tuaj yeem xam tus nqi ntawm tag nrho cov inorganic carbon uas yaj hauv cov qauv. Ib tug xov tooj ntawm acids ib txwm yaj nyob rau hauv dej tab sis nyob rau hauv cov kab mob concentrations. Txawm li cas los xij, carbonic acid yog pom nyob rau hauv siab concentration vim CO 2tuaj yeem yaj hauv dej. Yog li ntawd, tag nrho alkalinity ntawm dej feem ntau sib npaug rau carbonate alkalinity. Qhov sib txawv tseem ceeb ntawm p Alkalinity thiab m Alkalinity yog p Alkalinity yog qhov ntsuas ntawm alkalinity muab los ntawm hydroxide ions thiab ib nrab ntawm cov carbonate alkalinity whereas m alkalinity yog ntsuas alkalinity muab los ntawm hydroxide ions thiab tag nrho cov carbonate alkalinity.
Download PDF Version of p Alkalinity vs m Alkalinity
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov download PDF version ntawm no Qhov txawv ntawm p Alkalinity thiab m Alkalinity.
