... .corn fermented 3.Ethanol oxidation method 4.Crude scale95%min Usage glacial acetic acid,CAS:64-19-7/E260,food grade mainly used ... ,then got qualified acetic acid . Specifications glacial acetic acid,CAS:64-19-7/E260,food gradeItemStandardAppearanceColorless transparent liquidColor(platinum-cobalt color Number ... ISO9001:2008 ISO14001:2004 GB/T28001-2001. glacial acetic acid,CAS:64-19-7/E260,food grade