... for Corn Oil1)Raw Material:High quality bentonite and concentrated sulfuric acid2)Feature:Sub-white powder,odorless,tasteless,non- ... via burning oil & asphalt approach),%≥95Activity(NaAc approach)≥180Free acid (H2SO4),%≤0.15Water content before leaving factory,%≤12.0Granularity(over ... the harmful pigment,aflatoxin,phosphatide,saponin,colloid,and cotton acid from the oil to make it high-grade edible ...