Excess KOH is accidentally added to a formula and then neutralized with Sulfuric Acid to bring the pH to 9.89 -- after {40psi, temperature (275F)} phase, a wax precipitates out. The pH drops to 4.5.
Is the KOH evaporating out? Is the low pH PE wax insoluble?
What would cause this drop in pH? Can someone point me in the right direction of where I can find information on this?
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Topic: pH drop after precipitation (Read 1787 times)