... of residual oil 5)Certificate:ISO9001:2008 Activated Clay for Corn Oil1)Raw Material:High quality bentonite and concentrated sulfuric acid2 ... )Feature:Sub-white powder,odorless,tasteless,non-toxic,easy to absorb moisture,stacking density is 0.7 ... the harmful pigment,aflatoxin,phosphatide,saponin,colloid,and cotton acid from the oil to make it high-grade edible oil.In ...