Alkaline Reagent for Sulfur Dioxide Mini Titrator (120 mL)

HI84500-61

Alkaline Reagent for Sulfur Dioxide Mini Titrator (120 mL)

$28.00

The HI84500-61 is a 120 mL bottle of alkaline reagent required for determination of total sulfur dioxide in wine using the HI84500 Sulfur Dioxide Mini Titrator for Wine Analysis. This alkaline reagent is used to raise the pH value of the sample prior to performing a total sulfur dioxide titration. With 5 mL of reagent required per total SO₂ test, there is enough alkaline reagent for approximate 24 tests.

Pre-measured solution
Clearly marked expiration date and lot number
Air tight bottle with tamper-proof seal to ensure quality

*Products classified as Dangerous Goods can only be shipped via ground.

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The HI84500-61 alkaline reagent is necessary for the analysis of total sulfur dioxide. The alkaline reagent raises the pH and liberates bound sulfur dioxide. This pH adjustment ensures that all of the free and bound sulfur dioxide is accounted for to give an accurate measurement of total sulfur dioxide. The HI3148B ORP electrode is used to detect the endpoint for both the low (1.0 to 40.0 ppm of SO₂) and high (30 to 400 ppm of SO₂) ranges. The HI84500 can be used with all wines, including red, which are difficult to test using traditional methods due to the difficulty to observe a distinctive color change when the endpoint is reached.

The HI84500 determines the free and total sulfur 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:

IO₃^- + 5I^- + 6H⁺ → 3I₂ + 3H₂O

The iodine produced reacts with sulfur dioxide in the wine according to the redox reaction below:

H₂SO₃ + I₂ → H₂SO₄ + 2HI

Replacement reagents required to operate the HI84500 include:

	Low Range - 1.0 to 40.0 ppm SO₂	High Range - 30 to 400 ppm SO₂
Pump calibration standard	HI84500-55	HI84500-55
Titrant solution	HI84500-50	HI84500-51
Acid reagent	HI84500-60	HI84500-60
Alkaline reagent (Total SO₂)	HI84500-61	HI84500-61
Stabilizer powder packets	HI84500-62	HI84500-62

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Alkaline Reagent for Sulfur Dioxide Mini Titrator (120 mL)

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HI84500-61 Alkaline Reagent for Total Sulfur Dioxide in Wine (120 mL) Reviews