楼下只说对了一半,6CH3COOH+Fe2O3•6H2O==4(CH3COO)3Fe+12H2O又因为CH3COOH酸性太弱,无法形成Fe3+盐,所以(CH3OO)3Fe发生水解所以最后颜色是棕红色的沉淀
6CH3COOH+Fe2O3•6H2O==4(CH3COO)3Fe +12H2O