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Engbryg
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How can I calculate the amount of citric acid to add to a solution of a given pH, to achieve another value of pH?
Engbryg said:No, I was hoping for a ready-to-use formula, i.e. x mg of citric acid to decrease from pH 8 to pH 5.2.
To calculate the amount of citric acid needed for pH adjustment, you will need to know the initial pH of your solution, the desired pH, and the volume of the solution. You can use an online calculator or the Henderson-Hasselbalch equation to determine the amount of citric acid needed.
Citric acid is commonly used for pH adjustment because it is a weak acid that can easily be titrated to reach a desired pH. It is also a food-grade acid and is safe to use in various applications such as in food and beverage products.
Citric acid is suitable for pH adjustment in most aqueous solutions. However, it may not be effective in highly alkaline solutions as it is a weak acid and may not be able to sufficiently lower the pH. In these cases, a stronger acid may be needed.
To ensure accurate measurements, it is important to use a precise measuring tool such as a scale or graduated cylinder. It is also recommended to perform multiple trials to confirm the accuracy of your results.
Citric acid is generally safe to handle, but it is still important to wear protective gear such as gloves and goggles when handling concentrated solutions. It is also recommended to work in a well-ventilated area and to avoid inhaling the fumes.