... oil 3)High decoloring power 4)High quality,good price Acid Activated Bleaching Earth1)Raw Material:High quality bentonite & concentrated ... oil & asphalt approach),%≥95≥95Activity(NaAc approach)≥180≥200Free acid (H2SO4),%≤0.15≤0.20Water content before leaving factory,%≤12 ... .Can remove harmful pigment,aflatoxin,phosphatide,saponin,colloid,cotton acid from oil to make it high-grade edible oil.♦ ...