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The HI84432 mini titrator incorporates a peristaltic pump dosing system which allows for a highly accurate determination of the amount of titrant used. The HI84432-55 is a pump calibration standard that is used to calibrate the dosing system. A calibrated dosing pump allows for the accurate determination of the amount of titrant used when performing a titration. The amount of volume dosed along with the concentration of the titrant is used by the pre-programmed formula within the HI84432 in determining the exact acidity of fruit products. The pump calibration procedure should be performed anytime the titrant or pH electrode is replaced. Routine calibration is recommended to ensure the highest accuracy when performing a titration.
The HI84432-55 is a 100 mL bottle of pump calibration standard solution that is used for determination of acidity in fruit juice.
H+ + OH– → H2O
The endpoint of an acid base titration corresponds to the complete neutralization of the acids present. The predominant acids present depend on the type of fruit being tested and include citric acid, tartaric acid, and malic acid. The titration to a fixed pH endpoint gives the result of all substances present that have an acidic nature including: free hydrogen ions, organic acids, and acid salts. Titratable acidity is expressed as g/100 mL (%w/v) of the predominant acid.
For precise results it is very important to know the sample volume, titrant volume, and titrant concentration. As the titrant comes pre-standardized, it is important to determine the amount of titrant delivered by the dosing pump. This determination is done by the pump calibration procedure. In this procedure the analysis of a known volume of a known solution (HI84432-55) is titrated with the appropriate titrant to the pH endpoint that is potentiometrically determined by the HI1131B pH electrode. The pump calibration procedure should be performed anytime the titrant, syringe, tubing or pH electrode is replaced. It is recommended to do a pump calibration every time a new set of titrations are to be performed.
Replacement reagents required to operate the HI84432:
|
Titratable Acidity Range (15 mL sample) 0.20 – 1.20 %CA 0.23 – 1.41 %TA 0.21 – 1.26 %MA |
Titratable Acidity Range (2 mL sample) 0.80 – 8.00 %CA 0.94 – 9.30 %TA 0.84 – 8.30 %MA |
|
| Pump calibration standard | HI84432-55 | HI84432-55 |
| Titrant solution | HI84432-50 | HI84432-50 |
| Weight | 0.27 kg |
|---|---|
| Parameter | Acidity, Titratable Acidity |
| SKU | HI84432-55U |
| Name | Pump Calibration Solution for Titratable Acidity in Fruit Juice Mini Titrator – HI84432-55U |
| Description | Pump Calibration Solution for Titratable Acidity in Fruit Juice Mini Titrator |
| Package | bottle |
| Quantity | 1 |
| Size | 100 mL |
To empower customers to achieve quality
by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
To empower customers to achieve quality by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.
