... 3. Low oil retention 4. ISO. Activated bleaching earth for castor oil 1)Raw Material: High quality bentonite and high ... Feature: Sub-white powder,odorless,tasteless,non-toxic3)Usage:♦Used for decoloring, refining and purifying industrial oil, such as lubricating ... grease, kerosene, white oil,vaseline, etc.♦Used for recycling and regenerating of industrial waste oil, such as machine oil, lubricating oil, ...