Ingaba i-cyanuric acid iyayinyusa okanye iyayithoba i-pH?

Impendulo emfutshane ngu-ewe. I-cyanuric acid iya kunciphisa i-pH yamanzi echibini.

I-asidi ye-cyanuricyi-asidi yokwenyani kwaye i-pH yesisombululo se-cyanuric acid esingu-0.1% yi-4.5. Ayibonakali ine-asidi eninzi ngelixa i-pH yesisombululo se-sodium bisulfate esingu-0.1% iyi-2.2 kwaye i-pH ye-hydrochloric acid engu-0.1% iyi-1.6. Kodwa nceda uqaphele ukuba i-pH yamachibi okudada iphakathi kwe-7.2 kunye ne-7.8 kwaye i-pKa yokuqala ye-cyanuric acid yi-6.88. Oku kuthetha ukuba uninzi lwee-molecule ze-cyanuric acid echibini lokudada zinokukhupha i-hydrogen ion kwaye amandla e-cyanuric acid okunciphisa i-pH asondele kakhulu kulawo e-sodium bisulfate edla ngokusetyenziswa njenge-pH reducer.

Umzekelo:

Kukho ichibi lokudada elingaphandle. I-pH yokuqala yamanzi echibini yi-7.50, i-alkalinity iyonke yi-120 ppm ngelixa inqanaba le-cyanuric acid liyi-10 ppm. Yonke into isebenza kakuhle ngaphandle kwenqanaba le-zero cyanuric acid. Masongeze i-20 ppm ye-cyanuric acid eyomileyo. I-Cyanuric acid iyanyibilika kancinci, idla ngokuthatha iintsuku ezi-2 ukuya kwezi-3. Xa i-cyanuric acid inyibilika ngokupheleleyo, i-pH yamanzi echibini iya kuba yi-7.12 ephantsi komda ophantsi ocetyiswayo we-pH (7.20). I-12 ppm ye-sodium carbonate okanye i-5 ppm ye-sodium hydroxide iyafuneka ukuze kulungiswe ingxaki ye-pH.

Ulwelo lwe-monosodium cyanurate okanye i-slurry luyafumaneka kwezinye iivenkile zeedama zokubhukuda. I-1 ppm monosodium cyanurate iya kunyusa amanqanaba e-cyanuric acid nge-0.85 ppm. I-Monosodium cyanurate inyibilika ngokukhawuleza emanzini, ngoko ke kulula ukuyisebenzisa kwaye inokunyusa ngokukhawuleza amanqanaba e-cyanuric acid kwidama lokubhukuda. Ngokuchasene ne-cyanuric acid, ulwelo lwe-monosodium cyanurate luyi-alkaline (i-pH ye-35% slurry iphakathi kwe-8.0 ukuya kwi-8.5) kwaye inyusa kancinci i-pH yamanzi edama. Kwidama lokubhukuda elikhankanyiweyo apha ngasentla, i-pH yamanzi edama iya kunyuka iye kwi-7.68 emva kokongeza i-23.5 ppm ye-monosodium cyanurate ecocekileyo.

Ungalibali ukuba i-cyanuric acid kunye ne-monosodium cyanurate emanzini echibi nazo zisebenza njenge-buffers. Oko kukuthi, xa inqanaba le-cyanuric acid liphezulu, amathuba okuba i-pH ikhukuliseke mancinci. Ngoko ke nceda ukhumbule ukuvavanya kwakhona i-alkalinity iyonke xa kufuneka i-pH yamanzi echibi ukuze kulungiswe.

Kwakhona qaphela ukuba i-cyanuric acid yi-buffer enamandla kune-sodium carbonate, ngoko ke ukulungiswa kwe-pH kufuna ukongeza i-asidi okanye i-alkali engaphezulu kunokuba ingenayo i-cyanuric acid.

Kwidama lokudada apho i-pH yokuqala iyi-7.2 kwaye i-pH enqwenelekayo iyi-7.5, i-alkalinity iyonke yi-120 ppm ngelixa inqanaba le-cyanuric acid liyi-0, 7 ppm ye-sodium carbonate liyadingeka ukuze kuhlangatyezwane ne-pH enqwenelekayo. Gcina i-pH yokuqala, i-pH enqwenelekayo kunye ne-alkalinity iyonke iyi-120 ppm ingatshintshanga kodwa tshintsha inqanaba le-cyanuric acid libe yi-50 ppm, i-10 ppm ye-sodium carbonate iyadingeka ngoku.

Xa i-pH ifuna ukuncitshiswa, i-cyanuric acid ayibi nampembelelo ingako. Kwidama lokudada apho i-pH yokuqala iyi-7.8 kwaye i-pH enqwenelekayo iyi-7.5, i-alkalinity iyonke yi-120 ppm kwaye inqanaba le-cyanuric acid yi-0, 6.8 ppm ye-sodium bisulfate liyafuneka ukuze kuhlangatyezwane ne-pH enqwenelekayo. Gcina i-pH yokuqala, i-pH enqwenelekayo kunye ne-alkalinity iyonke iyi-120 ppm ingatshintshanga kodwa tshintsha inqanaba le-cyanuric acid libe yi-50 ppm, i-7.2 ppm ye-sodium bisulfate iyafuneka - kuphela ukwanda kwe-6% yomthamo we-sodium bisulfate.

I-cyanuric acid ikwanenzuzo yokuba ayizukuba sisikali kunye ne-calcium okanye ezinye iimetali.