... GB15892-2009 itemIndexsolidLiquidAppearanceYellow ir yellowish-brown powderYellow liquid Aluminium oxid(Al2O3)content,%>=2810Density(20°C,g/ml)>=--1.15Basicity,%45-9545 ... ventilate place, it will keep good for 6 mouths. 30%AL2O3 polyaluminium chloride