... residual oil Edible Oil Activated Bleaching Clay1)Raw Material:High quality bentonite and concentrated sulfuric acid2)Feature:Sub-white powder,odorless,tasteless ... ,phosphatide,saponin,colloid,and cotton acid from the oil to make it high-grade edible oil.In food industry,it's ... will be affected by moisture due to its high water absorption ability. High activity food grade activated bleaching clay