Hanna Instruments

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HI-84500-60 Acid Reagent for wine analysis, 230mL

HI-84500-60 Acid Reagent for wine analysis, 230mL

Hanna HI-84500-60 Acid Reagent for wine analysis, 230mL

HI-84500-60 Acid Reagent for wine analysis, 230mL

In Stock
£25.45 (exc. VAT) £30.54 (inc. VAT)

The HI-84500-60 is a 230 mL bottle of acid reagent required for both low and high range determinations of sulphur dioxide in wine using the HI-84500 Sulphur Dioxide Mini Titrator for Wine Analysis.

The acid reagent is used to lower the pH value of the sample prior to performing a titration. With 5 mL of reagent required per test, there is enough acid reagent for approximately 46 tests.

HI-84500-60 Acid Reagent for wine analysis, 230mL information

Hanna's extended description

Acid Reagent for HI-84500-02 mini titrator for wine analysis.

The HI-84500-60 acid reagent is necessary to lower the pH of the wine sample before a titration can be performed for either free or total sulphur dioxide. The adjustment of the wine sample with 5 mL of the acidic reagent ensures the sample is at the correct pH. The addition of HI-84500-62 stabilising powder is also added prior to performing the titration. The HI-3148B 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 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.

The 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:


IO3- + 5I- + 6H+ → 3I2 + 3H2O

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


H2SO3 + I2 → H2SO4 + 2HI

Specifications

Specifications list

Specifications

Replacement reagents required to operate the HI-84500 include:
LOW RANGE - 1.0 to 40.0 ppm SO2
  Pump calibration standard HI-84500-55
  Titrant solution HI-84500-50
  Acid reagent HI-84500-60
  Alkaline reagent (Total SO2) HI-84500-61
HIGH RANGE - 30 to 400 ppm SO2
  Pump calibration standard HI-84500-55
  Titrant solution HI-84500-51
  Acid reagent HI-84500-60
  Alkaline reagent (Total SO2) HI-84500-61
Package Bottles
Size 230ml
Quantity 1

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