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What is Total Alkalinity (TA)? - Definition from Corrosionpedia

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Total alkalinity (TA) is the measure of water's ability to neutralize acids. Alkaline compounds that are present in water, like hydroxides and carbonates, ... Dictionary Dictionary TermoftheDay ReductioninArea Reductioninareaisthedifferencebetweenanoriginalgivencross-sectionalareaofatestspecimenbeforebeingsubjectedtotensionandthegivenareaofitssmallestcross-sectionafterruptureattheconclusionofthetest,withtheoriginalcross-sectionalareaexpressedasapercentage.... 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HowtoPreventFiliformCorrosionUnderCoatings UnderstandingtheCausesandCuresforCorrosionUnderInsulation AnIntrotoPipelineCorrosioninSeawater The6CorrosiveComponentsThatCanBeFoundinCrudeOil Webinars Q&A Downloads Follow Connectwithus SubscribeToOurNewsletters Signup Thankyouforsubscribingtoournewsletter! Byclickingsignup,youagreetoreceiveemailsfromCorrosionpediaandagreetoourTermsofUseandPrivacyPolicy. More About AdvertisingInfo Contributors Newsletters WriteforUs Contact Connectwithus SubscribeToOurNewsletters Signup Byclickingsignup,youagreetoreceiveemailsfromCorrosionpediaandagreetoourTermsofUseandPrivacyPolicy. Advertisement Dictionary Standards TotalAlkalinity(TA) TotalAlkalinity(TA) WhatDoesTotalAlkalinity(TA)Mean? Totalalkalinity(TA)isthemeasureofwater’sabilitytoneutralizeacids.Alkalinecompoundsthatarepresentinwater,likehydroxidesandcarbonates,eliminateH+ionsfromthewater,whichlowerstheacidityofthewaterandresultsinahigherpH. Totalalkalinityisgaugedbymeasuringthelevelsofacidrequiredtobringacertainsample’spHlevelto4.2.Atthislevel,allalkalinecompoundsarecompletelyusedup.Measuringalkalinityisvitalinidentifyingthecapacityofwatertoneutralizetheacidicandcorrosiveeffectsfromwastewaterandothersources,suchasrainfall. Advertisement CorrosionpediaExplainsTotalAlkalinity(TA) Totalalkalinityisthemeasureofthealkalinityofsubstancespresentinwater.WhentheTAleveliswithinappropriatelevels,fastpHchangesareprevented,whichinturnbalancesthepHlevels. Ifthetotalalkalinityistoohigh,itcanbehardtoregulatethepH.Withthis,thewaterturnscloudyandthewatermaycontinuouslyneedacid,dependingontheresultsoftesting.Whenthishappens,thechlorineinthewaterbecomeslessefficientindisinfecting. Itishighlysuggestedtotestfortotalalkalinitylevelsonaregularbasistomaintainthesafetyandqualityofwater,pipelinesanddistributionsystems. ThelevelsofTAcanberaisedwhennecessarywiththeuseofcompoundslikesodiumcarbonate.WhenloweringtheTA,acidindryorliquidformcanbeadded,suchasdryacidandhydrochloricacid.Bothcanbetime-consumingprocesses,butareguaranteedtoprovideappropriatesolutions. 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