Aluminium hydroxide for flame retardants filler Cas no.: 21645-51-2 Formula: al(oh)3 Mol wt.: 78 H.S. Code: 2818.30 Synonyms hydrated alumina; alumina hydrate; alumina trihydrate; ath; aluminum hydrate; aluminum trihydrate; alhydrogel; superfos; amphogel; aluminum (iii) hydroxide; amorphous alumina; trihydrated alumina; trihydroxyaluminum; Physical properties : Appearance: white powder Molecular formula: al(oh)3 Molecular weight: 78.0 Cas no.: 21645-51-2 Bulk density(g/cm3):loosed: 1.1 Packed: 1.3 Density(g/cm3): 2.42 Shelf life: longer than 2 years. Chemical properties : Al(oh)3: 99.6% min. Al2o3: 65.1% min. Sio2: 0.03% max. Fe2o3: 0.02% max. Na2o: 0.2% max. L.O.I.: 35% max. Moisture: 0.1% max. Ph: 7.5~10 In 25 kgs bags, 1000kg bags