Why are my painkillers not dissolving in acid!
Posted: Fri Sep 21, 2018 12:07 am
I dissolved different forms of pain killers (tablet, soluble tablet, gel capsule, powder capsule and caplet) in stimulated gastric acid (hydrochloric acid, potassium chloride and sodium chloride). It my experiment I left them for 40 minutes and none fully dissolved. They all dissolved into their smallest for but undissolved particles still remained. After leaving them overnight to see if they would dissolve any further they remained the same. Why might this be?