... ,CHALCO,high whiteness Aluminiumfiller,ultra fine Aluminium hydroxide,Amorphous alumina,Trihydrated Alumina,AluminiumHydroxide Dried Gel ,,Regarding Aluminium Hydroxide for artifical marble ... max.PH: 7.5~10Whiteness:93% min.Particle Size:D50: 75~95umPacking: in 25 kgs bags,We have different size,fine ... by Silane or Stearic Acid.Particle size D50:90um, 75~90um,50um,25um,20um,14um,10um,5um,3um,1um. ...