Index ntawm nplooj ntawv ntsiab lus
En Ok Pauv Reform, nyob rau hauv nqe lus no nyob rau hauv lub pH theem pas ua luam dej peb yuav kho cov Dab tsi yog qhov tseem ceeb ntawm pH nplai hauv cov khoom tu?
Qhov tseem ceeb ntawm pH nplai hauv cov khoom ntxuav?
Yog peb xav txog pH ntawm peb cov tawv nqaij, uas yog kwv yees li 5,5, ib yam khoom uas muaj pH qis yuav ua rau khaus, hos yog hais tias ib yam khoom muaj ib tug acidic pH nws yuav hlawv peb cov tawv nqaij thiab ib tug alkaline pH tseem yuav yaj nws., tsim teeb meem kev noj qab haus huv loj.
Vim li no, nws yog ib qho tseem ceeb heev uas yuav tsum paub zoo txog cov pH ntawm txhua yam tshuaj ntxuav raws li nws qhov kawg siv los yog qhov chaw yuav tsum tau ntxuav, cov kua qaub yog zoo meej rau kev tshem tawm calcium, xeb, thiab lwm yam minerals, thaum alkaline daws yog zoo dua rau tshem tawm cov av, roj, proteins, roj, thiab lwm yam organics.
Peb tab tom tham txog kev daws teeb meem txij li yuav luag txhua yam khoom siv tshuaj ntxuav tes yog siv diluted hauv dej thiab lawv muab dej rau nws lub zog ntub ua tsaug rau cov tshuaj tensoactive uas lawv muaj.
Qhov sib npaug ntawm pH qhov tseem ceeb hauv tib neeg lub cev
Acid, nruab nrab thiab alkaline pH qhov tseem ceeb
Kev faib tawm ntawm qhov ntsuas pH tus nqi
Dab tsi yog cov nqi pH
Lub pH nplai mus los ntawm 1 txog 14, nrog pH 7 yog ib qho kev daws teeb meem nruab nrab.
Yog li, nws hloov tawm tias pH yog tus nqi uas tau hais tawm ntawm qhov ntsuas logarithmic nruab nrab ntawm qhov tseem ceeb 0 (tsis tshua muaj acidic) thiab 14 (alkaline heev); Hauv nruab nrab peb pom tus nqi 7 cataloged li nruab nrab.
pH scale universal pH qhia
Nws txhais li cas tias cov khoom muaj acidic lossis alkaline pH?
Dab tsi yog acids thiab bases?
Cov kua qaub thiab cov hauv paus yog cov khoom uas muaj nyob hauv qhov xwm txheej thiab txawv ntawm lawv qib pH, uas yog, los ntawm lawv qib acidity lossis alkalinity. Kev txiav txim siab ntawm seb cov khoom puas yog acidic lossis alkaline yog tswj hwm los ntawm qib acidity lossis alkalinity ntsuas los ntawm pH nplai thiab thaj tsam ntawm 0 ( acidic heev mus rau 14 (tsis tshua muaj alkaline). txawm li cas los xij muaj ntau yam kev lag luam thiab tib neeg siv.
Cov tshuaj acidic yog dab tsi?
- acid pH: pH tsawg dua 7
Nws txhais li cas tias tus nqi pH yog acidic?
- Hais tias ib yam khoom yog acidic txhais tau hais tias nws yog nplua nuj nyob rau hauv H+ (hydrogen ions): pH ntau dua 7
- Vim li no, Acids yog cov khoom uas muaj pH tsawg dua 7. (pH ntawm dej sib npaug li 7, suav tias yog nruab nrab), uas nws chemistry feem ntau muaj cov hydrogen ions ntau thaum ntxiv dej. Lawv feem ntau hnov mob nrog lwm yam tshuaj los ntawm kev poob protons (H+).
Dab tsi yog cov khoom nruab nrab?
- Nruab nrab pH tus nqi: pH sib npaug rau 7-
Nws txhais li cas tias pH tus nqi nruab nrab?
- pH yog ib qho kev ntsuas ntawm acidic/basic dej.
- Qhov ntau yog los ntawm 0 txog 14, nrog 7 yog nruab nrab.
Cov tshuaj alkaline yog dab tsi?
- Cov khoom uas muaj lub hauv paus lossis alkaline pH: pH ntau dua 7.
Nws txhais li cas thaum tus nqi pH yog alkaline?
- Tias ib yam khoom yog alkaline txhais tau hais tias nws tsis zoo hauv H+ (los yog nplua nuj hauv OH hauv paus-, uas neutralize H+).
- Rau tag nrho cov no, Bases, ntawm qhov tod tes, yog cov khoom uas muaj pH ntau dua 7., uas nyob rau hauv aqueous daws feem ntau muab hydroxyl ions (OH-) nyob nruab nrab. Lawv zoo li muaj zog oxidants, uas yog, lawv hnov mob nrog protons los ntawm ib puag ncig nruab nrab.
Ntxuav cov khoom raws li lawv cov pH
Cov khoom nruab nrab (PH ntawm 6 txog 8).
- Lawv yog cov khoom uas siv tau rau ntawm crystallized thiab ci ntsa iab los yog hauv pem teb, piv txwv li marble, txij li thaum tsis txhob hloov cov khoom ntawm glossCov. Yuav yog siv rau tus kheej siv vim lawv tsis cuam tshuam rau ntawm daim tawv nqaij.
- Piv txwv ntawm cov khoom nruab nrab: Pine lossis txiv qaub hauv av ntxuav, Marble pem teb ntxuav, tes xab npum.
Alkaline khoom (PH 9 los yog ntau dua).
- Lawv yog cov khoom uas muaj tshuaj tua kab mob thiab ntxuav cov khoom, tshwj xeeb tshaj yog tias cov av muaj pigments, proteins lossis rog. Yog tias PH siab heev, nws feem ntau yog siv los ua lub plunger.
- Piv txwv ntawm cov khoom alkaline: degreasers, tshuab ntxhua khaub ncaws rau cov cav tov, los yog ammoniacal hauv pem teb ntxuav.
Cov khoom siv acid (PH 5 lossis tsawg dua).
- Lawv yog cov khoom lag luam nrog cov khoom siv feem ntau scale tshem tawm, zoo tagnrho rau calcareous seem, oxides, thiab lwm yam. Tab sis ceev faj: lawv yuav tsum tau siv rau ntawm qhov chaw tsis zoo.
- Piv txwv ntawm cov khoom siv acidic: Lub tshuab ntxuav tais diav ntxuav tais diav, Citrus ntxuav.
- Cov kws tshaj lij CLIM tuaj yeem paub PH ntawm peb cov khoom siv tshuaj hauv cov ntaub ntawv qhia kev ntawm txhua tus.
Yam khoom twg muaj nyob rau ntawm txhua pab pawg no thiab nyob rau hauv dab tsi scenario lawv siv tau?
cov khoom nruab nrab
- Lawv yog cov khoom lag luam nrog pH ntawm 6 txog 8 thiab tuaj yeem siv tau ob qho tib si hauv tsev thiab hauv tsev vim lawv tsis txaus ntshai rau peb cov tawv nqaij. Cov khoom nruab nrab yog tshwj xeeb tshaj yog haum rau crystallized nto los yog nrog ib theem ntawm gloss, vim hais tias cov chav kawm ntawm cov khoom no tsis hloov lawv cov khoom, cov chaw no feem ntau yog marble floors, terrazzo floors, glassware, crockery ...
- Cov khoom lag luam feem ntau nrog cov pH no feem ntau yog cov tshuaj ntxuav hauv pem teb, cov xab npum ntxuav tes lossis cov tshuaj ntxuav iav.
alkaline khoom
- Cov khoom lag luam nrog pH ntawm 9 lossis siab dua yog cov khoom siv zoo heev tiv thaiv cov roj thiab cov av uas muaj cov xim thiab cov protein, thiab tseem muaj cov tshuaj tua kab mob. Feem ntau cov khoom alkaline feem ntau yog siv los ua unblockers ua tsaug rau lawv lub zog corrosive. Qhia rau kev siv tshaj lij vim tias lawv tuaj yeem tsim kev puas tsuaj rau daim tawv nqaij, peb pom zoo kom siv lawv ib txwm ua raws li cov chaw tsim khoom cov lus qhia thiab tsuas yog los ntawm cov neeg ua haujlwm tsim nyog, siv cov kev tiv thaiv tsim nyog. Ib qho piv txwv zoo ntawm cov khoom no yog cov tshuaj ammonia, cov tshuab ntxuav tais diav thiab cov degreasers.
cov khoom siv acid
- Lawv muaj pH ntawm 5 lossis tsawg dua thiab nws tseem ceeb heev kom paub tias lawv yuav tsum tsis txhob siv rau ntawm qhov chaw mos. Lawv raug qhia tawm tsam xeb, calcareous seem thiab lwm yam tsis-organic ntxhia.
- Cov piv txwv ntawm cov khoom lag luam uas paub zoo tshaj plaws thiab feem ntau cov kua qaub hauv tsev yog txiv qaub thiab vinegar, uas txawm hais tias lawv yog cov khoom siv tau, peb txhua tus paub lawv cov acidity siab thiab tau siv ntau xyoo ua cov tshuaj ntxuav hauv tsev, nrog rau txhua hom citrus. tshuaj ntxuav tais diav los yog polish. los yog lub tshuab ntxuav tais diav, tuaj yeem suav hais tias yog cov khoom siv acidic muab lawv qib pH.