Karabo e khutšoanyane ke e. Sianuric acid e tla theola pH ea metsi a letamo.
Sianuric acid ke asiti ea 'nete mme pH ea 0.1% ea tharollo ea cyanuric acid ke 4.5. Ha e bonahale e le asiti haholo ha pH ea 0.1% sodium bisulfate tharollo e le 2.2 mme pH ea 0.1% hydrochloric acid ke 1.6. Empa ka kopo hlokomela hore pH ea matamo a ho sesa e pakeng tsa 7.2 le 7.8 le pKa ea pele ea cyanuric acid ke 6.88. Sena se bolela hore limolek'hule tse ngata tsa cyanuric acid ka letamong la ho sesa li ka lokolla ion ea hydrogen le bokhoni ba cyanuric acid ho theola pH bo haufi haholo le ba sodium bisulfate eo hangata e sebelisoang e le pH reducer.
Ka mohlala:
Ho na le letangoana la ho sesa kantle. pH ea pele ea metsi a letamo ke 7.50, kakaretso ea alkalinity ke 120 ppm ha boemo ba cyanuric acid e le 10 ppm. Ntho e 'ngoe le e' ngoe e maemong a ho sebetsa ntle le boemo ba zero cyanuric acid. A re kenyeng 20 ppm ea cyanuric acid e omileng. Cyanuric acid e qhibiliha butle, hangata e nka matsatsi a 2 ho isa ho a 3. Ha asiti ea cyanuric e qhibilihisoa ka botlalo pH ea metsi a letamo e tla ba 7.12 e tlase ho feta tekanyo e tlase e khothaletsoang ea pH (7.20). 12 ppm ea sodium carbonate kapa 5 ppm ea sodium hydroxide ea hlokahala ho eketsa ho lokisa bothata ba pH.
Mokelikeli oa Monosodium cyanrate kapa slurry o fumaneha mabenkeleng a mang a matamo. 1 ppm monosodium cyanurate e tla eketsa boemo ba asiti ea cyanuric ka 0.85 ppm. Monosodium cyanrate e qhibiliha ka potlako ka metsing, kahoo e bonolo ho e sebelisa 'me e ka eketsa ka potlako maemo a cyanuric acid ka letamong la ho sesa. Ho fapana le cyanuric acid, mokelikeli oa monosodium cyanurate ke alkaline ( pH ea 35% slurry e pakeng tsa 8.0 le 8.5) mme e eketsa pH ea metsi a letamo hanyenyane. Letamong le boletsoeng ka holimo, pH ea metsi a letamo e tla nyolohela ho 7.68 kamora ho eketsa 23.5 ppm ea pure monosodium cyanrate.
Se ke oa lebala hore cyanuric acid le monosodium cyanrate metsing a letamo le tsona li sebetsa joalo ka li-buffers. Ke hore, ha boemo ba cyanuric acid bo le holimo, ho na le monyetla o fokolang oa hore pH e hoholehe. Kahoo ka kopo hopola ho lekola alkalinity kaofela ha pH ea metsi a letamo e hlokahala ho fetola.
Hape hlokomela hore asiti ea cyanuric e matla ho feta sodium carbonate, kahoo phetoho ea pH e hloka ho eketsa asiti kapa alkali ho feta ntle le cyanuric acid.
Bakeng sa letamo la ho sesa leo pH ea pele e leng 7.2 'me pH e lakatsehang e le 7.5, kakaretso ea alkalinity ke 120 ppm ha boemo ba cyanuric acid e le 0, 7 ppm ea sodium carbonate e hlokahalang ho finyella pH e lakatsehang. Boloka pH ea pele, pH e lakatsehang le kakaretso ea alkalinity ke 120 ppm e sa fetohe empa fetola boemo ba cyanuric acid ho 50 ppm, 10 ppm ea sodium carbonate ea hlokahala hona joale.
Ha pH e hloka ho theoleloa, asiti ea cyanuric ha e na tšusumetso e nyane. Bakeng sa letamo la ho sesa leo pH ea pele e leng 7.8 le pH e lakatsehang ke 7.5, kakaretso ea alkalinity ke 120 ppm le boemo ba cyanuric acid ke 0, 6.8 ppm ea sodium bisulfate e hlokahalang ho finyella pH e lakatsehang. Boloka pH ea pele, pH e lakatsehang le kakaretso ea alkalinity ke 120 ppm e sa fetohe empa fetola boemo ba cyanuric acid ho 50 ppm, 7.2 ppm ea sodium bisulfate e hlokahalang - ke keketseho ea 6% feela ea tekanyo ea sodium bisulfate.
Cyanuric acid e boetse e na le molemo oa hore e ke ke ea theha sekala ka khalsiamo kapa lisebelisoa tse ling.
Nako ea poso: Jul-19-2024