... 2.CAS No.:9002-89-5 3.Formula:[C2H4O]n 4.Appearance:white powder Polyvinyl alcohol(PVA)1,other name: vinylalcohol ... polymer, poval2, CAS No.:9002-89-53,Molecular formula: [C2H4O ... namevinylalcohol polymer,povalCAS No.9002-89-5Molecular formula[C2H4O]nAppearancewhite flakes,floccus or powder solid,odourlessRelative density(25°C/4°C ...