Question
Posted on: March 6 2013How do I prepare the following formula without precipitation? Glycerin 30 g borax 10 g Aqua rosae 55 g Benzoe TT 5 G
Everything goes well until the Benzoe TT is added then a precipitation is placed at the top.
Answer
You have to do here with a precipitation of the resin acids from the benzoetincture in the form of non-diffusible solids. There are three methods to solve the problem:
- stabilize the precipitation with a protective Collo ï the
- solubilize
- the conditions of precipitation so set that a stable Collo ï Dale solution is obtained.