Magnesol is a very fine powder most commonly used in dry washing of Biodiesel. when mixed with your processed biodiesel, Magnesol D60 will bond with all of the soaps and other impurities and can then be filtered out quite easily with a 1 micron filter bag. You are then left with a completely clean and high quality fuel, without having to go through the costly mess of water washing for several days.
To determine the amount of soaps in your biodiesel batch, you will need to use bromophenol blue and hydrochloric acid to test it. You will then be able to add the right amount of magnesol, mix filter and be ready to use your fuel right away.