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pH problem
Hi. I’m working on foot cream with 30% of urea but i have problem with pH. I regulate it till it gets 5,5 but after 2 days it is raising , and after week i had pH 7. I added 0,1% of EDTA as my buffer agent but still doesn’t work
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1 Reply
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You will get more help if you list all the ingredients in the formula.
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