... ,Product:Polyvinyl alcohol 2,CAS No.:9002-89-5 3,MF:[C2H4O]n 4,Appearance:white flake,floccus or powder solid 5 ... ,First grade 1,Product:Polyvinyl alcohol2,CAS No.:9002-89-53,MF ... flake,floccus or powder solid5,EINECS No.:294-352-46,MF:[C2H4O]n 7,Spec.17-88ItemStandard Result Purity % ≥9898.1Alcoholysis % (mol ...