aluminium trihydrate ath,aluminium hydroxide cas:21645-51-2 m.w.: 78 m.f.: al(oh)3  aluminium trihydrate,ath,surface coated ath, h-wf-1st, aluminium hydroxide, flame retardant,artifical marble,toothpaste abradant,flame retardant,artificial onyx filler,alumina hydrate,al(oh)3,ath,aluminum hydroxide,aluminium hydroxide,aluminum trihydrate, alumina trihydrate, al2o3.3h2o,aluminum trihydroxide,hydrated alumina applicatio: ath is used as flame and smoke retardant,smoke suppressant,filler in pvc,fill in cable,tire,thermosetting , artificial marble,onyx marble,solid surface,adhesive,fiber cement,paint,plastic such as cables, artificial leather, wall covering , and etc. with increased attention being given to smoke & toxic fume emissio,  regarding aluminium hydroxide for solid suraface and marble, spec: al(oh)3: 99.6% min. sio2: 0.05% max. fe2o3: 0.02% max. na2o: 0.2% max. l.o.i.: 35% max. moisture: 0.2% max. ph: 7.5~10 whiteness:95% min. particle size:d50: 19~28um  http:www.hnki/eproduct_2_1_2.html   we have different size,fine, ultra fine, and also coated by silane or stearic acid. particle size d50:90um, 75~90um,50um,25um,20um,14um,10um,5um,3um,1um.  henan kingway chemicals co.,ltd. tel:86-371-65336567, fax:86-371-65336188 web:  http:www.hnki   email:  kingway@hnki