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Tetrasodium Glutamate Diacetate and Citric Acid
Hello,
I was revising all my notes on chelating agents (from this forum and elsewhere), and found two comments on its better functionality with citric acid: @Pharma said “…best used in combination with a small amount of citric acid.”, and @MarkBroussard said “Readily biodegradable and when combined with citric acid really boosts the performance of preservatives.”.
Could you explain, please, what “a small amount” means? Does it relate to the quantity of GLDA used?
I should specify that I’ve always used only Lactic acid to lower the pH of my formulations.
Thank you.
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