1.Iyini i-pH?
Inani le-pH liyisilinganiso sokuqina kwe-acid-base yesisombululo. Kuyindlela elula yokubonisa ukugcwala kwama-ion e-hydrogen (pH=-lg[H+]) esixazululweni. Ngokuvamile, inani lisuka ku-1~14 futhi 7 inani eliphakathi nendawo. I-acidity yesisombululo inamandla, inani lincane. I-alkalinity yesisombululo inamandla, inani likhulu.
2.Ukubaluleka kokutholwa kwe-pH
Isikhumba somuntu sine-asidi ebuthakathaka enenani le-pH 5.5 ~ 6.0. Indawo ye-Acid ingavimbela ukukhula nokuzala kwamanye amagciwane e-pathogenic futhi ivimbele ukuhlasela kwamagciwane angaphandle, ivikele isikhumba ekuthelelekeni. Uma inani le-pH lidlula okujwayelekile, njenge-asidi eningi noma i-alkali kakhulu, indawo ye-asidi ebuthakathaka yesikhumba somuntu izolimala, okuholela ekulumeni kwesikhumba noma ekungezwani komzimba nesikhumba.
3.Isimiso sokutholwa kwe-pH yendwangu
Ngemva kweizindwanguikhishwa ngamanzi acwengekile noma akhishwe i-deionized, sebenzisa imitha ye-pH ene-electrode yengilazi ukuze ulinganise inani le-pH lotshwala obukhishwe.
4.Isizathu senani le-pH yendwangu ukweqa izinga
(1) Umthelela wodayi ngesikhathi sokukhiqiza: Odayi abasetshenziswayo abavamile abasetshenziswayo, odayi be-vat nodayi besibabule basebenza ngaphansi kwesimo se-alkali. Nakuba ingaphezulu lendwangu lingaphathwa kahle ngokuwashwa ngamanzi, lizothinteka inani le-pH lamanzi okukhiqiza.
(2) Ithonya lenqubo yokudaya nokunyathelisa: Okokotini, uvolo, usilika, i-polyester, inayiloni ne-acrylic, njll., ngemvaukukhuhla, ukudaya nokunyathelisa, kukhona amakhemikhali e-alkali ne-asidi asele nezinsizi endwangu, anamanani ahlukene we-pH. Ngemuva kokwelashwa ngokuwasha ngamanzi, ngensipho, ukungathathi hlangothi kwe-asidi kanye nenqubo yokomisa, njll., uma inani lezinto ezisiza amakhemikhali likhulu kakhulu noma ukuwashwa kwamanzi kunganele, inani le-pH lezindwangu lizodlula izinga, elinomthelela ekugqokeni nasekusetshenzisweni kwendwangu. izindwangu.
(3) Umthelela wezindwangu: Ubukhulu bezindwangu buzothonya indawo engaphezulu yendwangu. Ezindwangu ezincane, kulula ukuwageza ngemva kokudaywa futhi inani le-pH lendwangu liphansi. Ezindwangu eziwugqinsi, kunzima ukuzigeza ngemva kokudaywa futhi nenani le-pH lendwangu liphezulu.
(4) Umthelela wephutha lokusebenza kwezisebenzi zaselabhorethri: Ukoma nokuswakama okuhlukile kwendwangu ehloliwe, izinga lokushisa elihlukile lokukhipha kanye nesikhathi esihlukile sokukhipha, njll. kuzoba nomthelela kumphumela wesilinganiso senani le-pH endaweni yendwangu.
5.Izinyathelo zokuthuthukisa izindwangu ezine-pH engafaneleki
(1) Ukungathathi hlangothi kwe-Acid-base: Uma i-asidi eyingxenye, engeza i-alkali ukuze unciphise. Uma i-alkali encane, engeza i-asidi ukuze unciphise. Ngokuvamile, kuwukwengeza i-acetic noma i-citric acid ne-sodium carbonate.
(2) Ukwenza ngcono i-ukudayakanye nenqubo yokuqeda: Ukuqinisa ukugeza amanzi, njll.
(3) Khetha impahla eluhlaza kanye nodayi bezinga eliphezulu.
Isikhathi sokuthumela: Nov-09-2022