Question
Posted on: March 6 2013How to prepare: erythromycin 4% Salicylic acid 5% propylene glycol 10% alcohol 70% AD 100%
Is It necessary to make this solution basic in order to guarantee stability? The solution as such had a pH4. If we do NaHCO3 we will get a rainfall.
Answer
I would not be too much to ask for the pH because what does the pH here still mean in such a middle. I do not think the combination is ideal but without research we cannot say much!