{"product_id":"hanna-instruments-hi-84500-61-alkaline-reagent-for-sulphur-dioxide-mini-titrator-for-wine-analysis-120ml","title":"Hanna Instruments HI-84500-61 Alkaline Reagent for Sulphur Dioxide Mini Titrator for wine analysis, 120mL","description":"\u003cp\u003eThe HI-84500-61 is an alkaline reagent required for determination of total sulphur dioxide in wine using the HI-84500 Sulphur Dioxide Mini Titrator for Wine Analysis.\u003c\/p\u003e\u003cp\u003eThis alkaline reagent is used to raise the pH value of the sample prior to performing a total sulphur dioxide titration. With 5 mL of reagent required per total SO\u003csub\u003e2\u003c\/sub\u003e test, there is enough alkaline reagent for approximate 24 tests.\u003c\/p\u003e \u003ch3\u003eAlkaline Reagent for HI-84500-02 mini titrator for wine analysis.\u003c\/h3\u003e \u003cp\u003eThe HI-84500-61 alkaline reagent is necessary for the analysis of total sulphur dioxide. The alkaline reagent raises the pH and liberates bound sulphur dioxide. This pH adjustment ensures that all of the free and bound sulphur dioxide is accounted for to give an accurate measurement of total sulphur dioxide. The HI-3148B ORP electrode is used to detect the endpoint for both the low (1.0 to 40.0 ppm of SO\u003csub\u003e2\u003c\/sub\u003e) and high (30 to 400 ppm of SO\u003csub\u003e2\u003c\/sub\u003e) ranges. The HI-84500 can be used with all wines, including red, which are difficult to test using traditional methods due to the difficulty to observe a distinctive colour change when the endpoint is reached.\u003c\/p\u003e \u003cp\u003eThe HI-84500 determines the free and total sulphur dioxide concentration in wine using the Ripper method. Excess iodide is added to the wine sample and reacts with the iodate titrant to produce iodine:\u003c\/p\u003e \u003cp\u003e\u003cbr\u003e IO\u003csub\u003e3\u003c\/sub\u003e- + 5I- + 6H+ → 3I\u003csub\u003e2\u003c\/sub\u003e + 3H\u003csub\u003e2\u003c\/sub\u003eO \u003c\/p\u003e \u003cp\u003eThe iodine produced reacts with sulphur dioxide in the wine according to the redox reaction below:\u003c\/p\u003e \u003cp\u003e\u003cbr\u003e H\u003csub\u003e2\u003c\/sub\u003eSO\u003csub\u003e3\u003c\/sub\u003e + I\u003csub\u003e2 \u003c\/sub\u003e→ H\u003csub\u003e2\u003c\/sub\u003eSO\u003csub\u003e4\u003c\/sub\u003e + 2HI\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement reagents\u003c\/td\u003e\n\u003ctd\u003eRequired to operate the HI-84500 include:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eLOW RANGE - 1.0 to 40.0 ppm SO2\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump calibration standard\u003c\/td\u003e\n\u003ctd\u003eHI-84500-55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitrant solution\u003c\/td\u003e\n\u003ctd\u003eHI-84500-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcid reagent\u003c\/td\u003e\n\u003ctd\u003eHI-84500-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkaline reagent (Total SO2)\u003c\/td\u003e\n\u003ctd\u003eHI-84500-61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;\"\u003e\u003cstrong\u003eHIGH RANGE - 30 to 400 ppm SO2\u003c\/strong\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump calibration standard\u003c\/td\u003e\n\u003ctd\u003eHI-84500-55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitrant solution\u003c\/td\u003e\n\u003ctd\u003eHI-84500-51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcid reagent\u003c\/td\u003e\n\u003ctd\u003eHI-84500-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkaline reagent (Total SO2)\u003c\/td\u003e\n\u003ctd\u003eHI-84500-61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eBottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e120ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640091713909,"sku":"HI-84500-61","price":33.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-84500-61-alkaline-reagent-for-wine-analysis-120ml.jpg?v=1791581078","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-84500-61-alkaline-reagent-for-sulphur-dioxide-mini-titrator-for-wine-analysis-120ml","provider":"Test All Water","version":"1.0","type":"link"}