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What is the PH of sodium benzoate 2024?
4.5
4.5 4.5
Questioner:Emily Allen 2023-05-28 10:52:36
The most authoritative answer in 2024
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Ethan Moore——Works at the International Atomic Energy Agency, Lives in Vienna, Austria.
Sodium benzoate is not recommended as a preservative at pH ranges higher than
4.5. The effectiveness of sodium benzoate as a preservative increases with decreasing pH (increasing acidity). This is because the ratio of undissociated (i.e., free) benzoic acid to ionized benzoic acid increases as the pH decreases.
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