Ukuze baqiqisise kuqala ukuba pH xa ukhetha imveliso mhle?

Mhlawumbi uya kuba savakala iintengiso nesepha gel ishawa, ukuhlafuna iintsini, yaye, kunqabile, izithambiso, igama u- "Paix Ash." Yintoni na kangakanani kubaluleke ngokwenene kuthi xa ukhetha iisepha kunye zokuthambisa? Makhe sijonge kuyo ngale ndlela, ukuze ukufumana ngokungeyomfuneko ibe kwemichiza "ehlathini." YE e Latin - "hydrogenium pundus" - lithetha "ubunzima hydrogen." Eli xabiso pH ibonisa inqanaba kwealkali phambi nasiphi na isisombululo okanye eziqinileyo. Kwakhona kwi zentengiso usebenzise izayamaniso eseleyo acid-isiseko kunye pH cala.

"Isepha womisa ulusu ..." - le umyalezo ophambili gel intengiso imvula eninzi. Eneneni, kwealkali - eyona nto ephambili iisepha - onesiphumo enjalo. Noko ke, ukuba anikezele ngokupheleleyo of kwealkali kwakhona ayinakwenzeka, ngenxa yokuba ngoncedo lwakhe yakuhlamba ukungcola. Ngaphandle lye isepha - nayiphi isepha, oko kukuthi, ukubeka ulwimi yeVangeli uba ityuwa elahlekelwe sisongo sayo. Ngoko ke, ixabiso le-pH ibonisa indlela ngesoda eninzi eziqulathwe kule mveliso. Khumbula lwezesayensi lesikolo: nanjengesoda kuhluthe? Injalo loo nto, esiti. Ngoko ke, siya ukucima nesoda yokubhaka kwakunye neviniga. Ezi izinto ezimbini ezisisiseko ngendlela esulungekileyo, bobabini kuba nefuthe elibi kakhulu eluswini: bunokusenza acid kunye ome kwealkali.

Esi salathisi pH nga bacinge njenge isikali zero ukuya 14. Xa pH ilingana zero, oko kuthetha ukuba akukho kwealkali yi - acid ekwimo ecocekileyo. Ukuba elinesine - a obrak yendalo. Emanzini Yek, ke ngoko, i-pH ilingana ezisixhenxe. Ngophanya nje lweliso, kubonakala ukuba ezisixhenxe - yeyona uphawu olukhulu eseleyo acid-base. Kodwa akukho - amanzi kakhulu yome kakhulu eluswini, kwaye waziva ingakumbi kakuhle ngabo, emva kokuba qubha elide okanye ukuhlamba avakalelwa kukudlathuka kweenwele oko emqolo. Njani sifumana i "emhlabeni phakathi", ukuze uzive iziphumo ezinobungozi acid okanye kwealkali ngengqiqo yokoqobo eluswini yabo?

isikhumba yethu une value yayo pH lakhe. It zokhahlamba kwisithuba ezine ezinesiqingatha (kubantu ulusu olunamafutha) ukuya ezintlanu nesiqingatha (isikhumba eyomileyo). Ngoko ke, umbhalo kwi isepha, cream okanye gel for ishawari "pH balanced" kuthetha ukuba imveliso kwinqanaba hydrogen ayikho ngaphezulu kwe 4.5-5.0 Isikali esimanqaku-14. into efanayo zentengiso ihlafuna gum: esinye isizathu ukuhlafuna kubo - oko uyakhawuleza ukubuyisela imali acid-alkali ze emlonyeni emva kokutya ukusela. Kodwa wenza ntoni ukuhlanjwa? Le ukulahla ubunyhukunyhuku nesikhumba efile amasuntswana kwaye ngexesha elinye umaleko ulusu eliphezulu (oko kubizwa ngokuba isiphumo yokuzikhwebula). Amadlala sebaceous cell ukuba i amanqatha asidi leyo isuswe kwaye hayi ngaphezu kwealkali.

Ngoko ke, xa ukhetha iisepha kunye nezinye iisepha, kufuneka ukuba ubani aqwalasele ufuna malini ukuze uthathe le zokhuselo acid sifihle neyokwaleka. Emva acid ithintela ukulahleka kwamanzi, ukanti ikhusela chapping, yelanga eyingozi, iziphumo ezinobungozi kokusingqongileyo. Enye into, xa amadlala sebaceous - umzekelo, kwisithuba nokwanda ngokwesondo - ukuvelisa amafutha amaninzi. Emva koko, pores baba ivalekile, ekhokelela inkangeleko induna zobutsha acne. Kulo mzekelo, iyavakala ukukhetha iimveliso izithambiso, apho liya kuba khona pH value ph kufutshane enxebeni 9 - inqanaba ubuninzi ayinayo, ukuba akayi kubangela ukuba imibimbi kwangoko, ndiwatshise isikhumba kuhle.

kufuneka kukhunjulwe ukuba izinga ialakalin kwi yesiqhelo cheap intlama isepha ilingana 9-11 Isikali esimanqaku-14 kubantu ngesikhumba owomileyo. Basebenzisa rhoqo isepha xa owomileyo inshorensi kunye ezimhlophe bavele touch ubuso bakho nje kuphela, kodwa izandla anesibindi ngakumbi. Kuba abantu abanjalo ahlambe amagwebu ngokupheleleyo ezithambileyo kunye asidi iziqhamo, apho isalathisi ph ekusuhi inqanaba 3 (inqanaba acid ubuninzi). Abantu abanjalo emva ngezandla ahlambe adle ezinamanqatha cream okunesondlo.