Qhov sib txawv tseem ceeb ntawm tag nrho alkalinity thiab pH yog tag nrho alkalinity yog tag nrho cov concentration ntawm tag nrho cov alkaline tshuaj yaj nyob rau hauv dej whereas pH yog lub minus log ntawm cov concentration ntawm hydrogen ions nyob rau hauv dej.
Feem ntau, peb tsis meej pem nrog ob nqe lus tag nrho alkalinity thiab pH vim hais tias ob nqe lus no muaj txiaj ntsig zoo sib xws hauv kev txiav txim siab tshuaj hauv dej. Qhov tseeb, ob nqe lus no cuam tshuam rau ib leeg, tab sis lawv tsis zoo ib yam. Yog li, muaj qhov sib txawv ntawm tag nrho alkalinity thiab pH
tag nrho Alkalinity yog dab tsi?
Tag nrho alkalinity yog cov dej muaj peev xwm tiv thaiv kev hloov pauv hauv pH. Hauv lwm lo lus, nws yog qhov ntsuas ntawm tag nrho cov concentration ntawm tag nrho cov alkaline hom yaj hauv dej. Lub hauv paus ntsiab lus alkaline hom muaj xws li hydroxide ions, carbonate thiab bicarbonate ions. Cov ions no tuaj yeem cuam tshuam cov pH ntawm dej los ntawm neutralizing acids, yog li peb tuaj yeem hais tias tag nrho cov alkalinity yog lub peev xwm ntawm cov dej los tiv thaiv cov kev hloov hauv pH.
Daim duab 01: Feem ntau Cov Dej Ntshiab muaj Alkaline Dej
Ntxiv mus, tus kws tshuaj hauv dej siv cov ntsuas milligrams ib liter ntawm calcium carbonate (mg/L CaCO 3) los ntsuas qhov ntsuas no. Los yog lwm yam, peb tsuas tuaj yeem siv chav tsev ppm (qhov ib lab). Qhov zoo tshaj plaws ntawm qhov ntsuas no rau cov dej zoo yog 80-120 ppm.
pH yog dab tsi?
pH yog "lub zog ntawm hydrogen". Peb tuaj yeem xam cov pH ntawm cov dej los ntawm kev siv tus nqi rho tawm ntawm hydrogen ion concentration hauv dej. Yog li ntawd, siv qhov ntsuas no, peb tuaj yeem txiav txim siab npaum li cas acidic lossis cov qauv dej yooj yim npaum li cas. Yog li, peb tuaj yeem txiav txim siab cov dej zoo.
Tus nqi pH tsis muaj chav tsev vim nws yog tus nqi ntsuas. Muaj pH nplai uas peb siv los txiav txim siab alkalinity lossis acidity ntawm dej. Ntawm no, pH nplai muaj qhov tseem ceeb ntawm 1 txog 14. Lub pH 7 yog tus nqi nruab nrab thiab cov nqi hauv qab 7 yog acidic qhov tseem ceeb thiab qhov tseem ceeb tshaj 7 yog qhov tseem ceeb.
Daim duab 02: pH Scale
Ntawm no, kev tswj hwm tus nqi pH ntawm qhov dej yog qhov tseem ceeb hauv kev tswj xyuas dej kom zoo. Nws txiav txim siab seb cov dej puas haum rau kev siv lossis tsis. Piv txwv li, feem ntau ntawm cov dej ntuj muaj alkaline xwm. Yog li ntawd, cov dej pH siab tuaj yeem ua rau cov nplais, dej pos huab, thiab lwm yam. Thaum, cov dej pH qis tuaj yeem ua rau lub pas dej ua kom puas thiab etching ntawm plaster, tawv nqaij thiab qhov muag puas, thiab lwm yam.
Qhov txawv ntawm Tag Nrho Alkalinity thiab pH yog dab tsi?
Peb tuaj yeem txhais tag nrho alkalinity raws li cov dej muaj peev xwm tiv thaiv kev hloov pauv hauv pH thaum pH yog "lub zog ntawm hydrogen". Txoj kev xav tom qab ob nqe lus no yog tias tag nrho cov alkalinity yog tag nrho cov concentration ntawm tag nrho cov alkaline tshuaj yaj nyob rau hauv dej thaum lub pH yog lub minus log ntawm cov concentration ntawm hydrogen ions nyob rau hauv dej. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm tag nrho alkalinity thiab pH. Qhov tseem ceeb tshaj, peb ntsuas tag nrho cov alkalinity siv ppm lossis milligrams ib liter ntawm calcium carbonate (mg/L CaCO 3) whereas tsis muaj chav ntsuas pH vim nws yog tus nqi teev.
Cov lus qhia hauv qab no piav qhia qhov sib txawv ntawm tag nrho alkalinity thiab pH kom ntxaws ntxiv.
Summary – Total Alkalinity vs pH
Peb tham txog ob nqe lus tag nrho alkalinity thiab pH ntawm dej hauv dej chemistry. Qhov sib txawv tseem ceeb ntawm tag nrho cov alkalinity thiab pH yog tias tag nrho cov alkalinity yog tag nrho cov concentration ntawm tag nrho cov alkaline tshuaj yaj nyob rau hauv dej whereas lub pH yog lub minus log ntawm cov concentration ntawm hydrogen ions nyob rau hauv dej.
