SULFUR DIOXIDE MINI TRITATOR

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Regular price $825.00

Please note: Next-day & 2-day shipping needs to be ordered by 1pm.

The HI84500 is a simple, fast, and accurate automatic mini titrator and ORP meter designed for testing sulfur dioxide (SO2) in wine, juice, and must.

Based on the Ripper Method, this mini titrator uses a preprogrammed method of wine analysis and a specialized ORP electrode to give highly accurate results.

Complete kit for SO2 measurements in wine.
Dynamic dosing makes testing both faster and more accurate.
Great meter for small & medium wineries and advanced hobbyists.

The HI84500 can be used to test for free and total sulfur dioxide in all wines, including red, which are difficult to test using traditional methods due to the inability to see the distinctive color change that occurs at the endpoint. The HI84500 offers reliable, accurate, and fast wine analysis. This mini titrator dispenses the titrant, detects the endpoint, and performs all necessary calculations automatically in a fraction of the time as compared to a manual titration. As found in Triage for Basic Wine/Grape Lab by Richard Carey, “the mini-titrator by Hanna reduces the time for an individual analysis by 75%.”

Winemakers add sulfur dioxide (SO₂) to wine in order to inhibit bacteria and wild yeast growth and to serve as an antioxidant to prevent browning. When SO₂ is added to wine, a portion of it becomes immediately bound while a remaining portion is unbound SO₂. The portion that is unbound is also called free SO₂ and it is responsible for protecting the wine. The bound and free SO₂ together are referred to as total SO₂. The relationship between the amount of SO₂ added and the amount of free SO₂ is complex, governed by the total amount of SO₂ in the wine and the ability of compounds (e.g. sugars, aldehydes, keto acids, quinones, anthocyanin) to bind to the SO₂. The exact relationship between free and bound SO₂ will vary from wine to wine.

The amount of free SO₂ depends on how much is added, how much was present before the addition, and how much was immediately bound. Free SO₂ exists in two forms. The first form, bisulfite (HSO₃^-), is the predominant form but is relatively ineffective. The second form, molecular SO₂, is the minor form and is responsible for protecting the wine. The amount of molecular SO₂ available in wine is dependent upon the amount of free SO₂ present and the pH. Typically 0.8 ppm of molecular SO₂ provides adequate protection against bacteria growth and oxidation. In order to obtain this value for a wine sample that has a pH of 3.2 you would need 22 ppm of free SO₂. If the pH was at 3.5 you would need double the amount of free SO₂, 44 ppm.