What should be the pH of 5% lactic in water?
I purchased some samples of lactic acid from different suppliers locally. Mixed 5% solution of each one in water and each one had different pH.
As the local sellers here don’t have much information about what they are selling, just name or some small other details and if they mix think no one will know, i want to know what should be the pH of 5-10% lactic acid in water?
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