Pump Calibration Solution for Titratable Acidity in Fruit Juice Mini Titrator

HI84432-55U

Pump Calibration Solution for Titratable Acidity in Fruit Juice Mini Titrator

$27.00

The HI84432 mini titrator incorporates a peristaltic pump dosing system which allows for a highly accurate determination of the amount of titrant used. The HI84432-55U 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.

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

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The HI84432-55U is a 100 mL bottle of pump calibration standard solution that is used for determination of acidity in fruit juice.

Fruit juice acidity is determined by neutralization of all available hydrogen ions present in the sample with a strong base solution:

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 (HI84432-55U) 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	HI84432-55U	HI84432-55U
Titrant solution	HI84432-50	HI84432-50

Pump Calibration Solution for Titratable Acidity in Fruit Juice Mini Titrator

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Pump Calibration Solution for Titratable Acidity in Fruit Juice Mini Titrator - HI84432-55U Reviews