Pour the combined powders into a batch oven-safe container. Consult your batch oven instruction manual to identify containers safe for use in your specific device. Do not attach a lid to the container. Purchase a batch oven wherever industrial ovens are sold.
Pour 1 tbsp Isopropyl rubbing alcohol into the powder combination. Rubbing alcohol will cause the protons in lauric acid to break down at a more thorough rate and expedite the separation process.
Place the powder combination into the oven. Close the oven door. Heat the oven to 111.2 degrees Fahrenheit. Maintain the temperature at this level. Lauric acid will melt at this point, while naphthol takes a temperature of 251.6 degrees to melt. Allow at least 5 minutes for the lauric acid to liquefy and the naphthol powder to settle at the bottom.