... .Ethanol oxidation method 4.Crude scale95%min Usage glacial acetic acid,CAS:64-19-7/E260,food ... by re-distillation ,then got qualified acetic acid . Specifications glacial acetic acid,CAS:64-19-7/E260,food ... gradeItemStandardAppearanceColorless transparent liquidColor(platinum-cobalt color Number/hazen units) 10maxAcidity,w% 99 ...