{"product_id":"alkalinity-chemical-test-kit-hi3811","title":"Alkalinity Chemical Test Kit - HI3811","description":"\u003cp\u003eThe HI3811 is a titration-based chemical test kit that determines the alkalinity concentration in samples within a 0 to 100 mg\/L (ppm) CaCO\u003csub\u003e3\u003c\/sub\u003e or 0 to 300 mg\/L CaCO\u003csub\u003e3\u003c\/sub\u003e range. The HI3811 is supplied with all of the necessary reagents and equipment to perform the analysis. The test kit contains enough reagents for perform approximately 110 tests.\u003c\/p\u003e\n\u003ch2\u003eFeatures at-a-glance\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eComplete setup \u003c\/strong\u003e\u003cul\u003e\u003cli\u003eAll required materials are included with the test kit,  such as the sample beakers,  plastic syringe,  phenolphthalein indicator,  and bromophenol blue indicator.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eHigh resolution \u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eReadings from 0 to 100 mg\/L are determined to 1 mg\/L resolution\u003c\/li\u003e\n\u003cli\u003eReadings from 0 to 300 mg\/L are determined to 3 mg\/L resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eReplacement reagents available\u003c\/strong\u003e\u003cul\u003e\u003cli\u003eThere is no need to buy a new kit when reagents are exhausted. The HI3811-100+I472 reagent set can be ordered to replace the reagents supplied with the kit. This reagent set comes with 1 (10mL) dropper bottle of phenolphthalein indicator,  1 (10mL) dropper bottle of bromophenol blue indicator,  and 1 (120mL) bottle of HI3811-0 reagent.\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eSignificance of Use\u003c\/h2\u003e\n\u003cp\u003eAlkalinity is the quantitative capacity of a water sample to neutralize an acid to a set pH. This measurement is very important in determining the corrosive characteristics of water due primarily to hydroxide,  carbonate,  and bicarbonate ions. Other sources of alkalinity can be from anions that can be hydrolyzed such as phosphates,  silicates,  borates,  fluoride,  and salts of some organic acids. Alkalinity is critical in the treatments of drinking water,  wastewater,  boiler and cooling systems,  and soils.\u003c\/p\u003e\n\u003cp\u003eAlkalinity can be measured as Phenolphthalein Alkalinity and Total Alkalinity. The Phenolphthalein Alkalinity is determined by neutralizing the sample to a pH of 8.3 using a dilute hydrochloric acid solution and a phenolphthalein indicator. This process converts hydroxide ions to water,  and carbonate ions to bicarbonate ions:\u003c\/p\u003e\n\u003cp\u003eOH\u003csup\u003e-\u003c\/sup\u003e + HCl → H\u003csub\u003e2\u003c\/sub\u003eO + Cl\u003csup\u003e-\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eCO\u003csub\u003e3\u003c\/sub\u003e\u003csup\u003e2-\u003c\/sup\u003e + HCl → HCO\u003csub\u003e3\u003c\/sub\u003e\u003csup\u003e-\u003c\/sup\u003e + Cl\u003csup\u003e-\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eSince bicarbonate ions can be converted to carbonic acid with additional hydrochloric acid,  the Phenolphthalein Alkalinity measures total hydroxide ions,  but only half of the bicarbonate contribution. To completely convert the carbonate ions,  hydrochloric acid is added until the sample pH is 4.5,  which is known as Total Alkalinity:\u003c\/p\u003e\n\u003cp\u003eHCO\u003csub\u003e3\u003c\/sub\u003e\u003csup\u003e-\u003c\/sup\u003e + HCl → H\u003csub\u003e2\u003c\/sub\u003eCO\u003csub\u003e3\u003c\/sub\u003e + Cl\u003csup\u003e-\u003c\/sup\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e HI3811\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003e Alkalinity Chemical Test Kit - HI3811\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Measurement Type\u003c\/td\u003e\n\u003ctd\u003e titration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Range\u003c\/td\u003e\n\u003ctd\u003e 0 to 100 mg\/L CaCO₃; 0 to 300 mg\/L CaCO₃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Resolution\u003c\/td\u003e\n\u003ctd\u003e 1 mg\/L (0 to 100 mg\/L range) 3 mg\/L (0 to 300 mg\/L range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Method\u003c\/td\u003e\n\u003ctd\u003e acid titration using phenolphthalein and bromophenol blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Number of Test\u003c\/td\u003e\n\u003ctd\u003e 110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 460 g (17.2 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e 200x120x60 mm (7.9x4.7x2.4 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI3811 test kit comes with 10 mL phenolphthalein indicator, 10 mL bromophenol blue indicator, 120 mL alkalinity titrant, 10 mL calibrated vessel, 50 mL calibrated vessel, and calibrated syringe with tip.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca target=\"_blank\" href=\"https:\/\/manuals.hannainst.com\/HI3811\"\u003eAlkalinity Chemical Test Kit - HI3811\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871256707441,"sku":"HI3811","price":5835.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi3811.jpg?v=1792645974","url":"https:\/\/hannainst.in\/products\/alkalinity-chemical-test-kit-hi3811","provider":"hanna","version":"1.0","type":"link"}