... Al2O3: 30% 3.Free samples 4.flocculant coagulant Spray light yellow PAC, Polyaluminium Chloride, abbreviated PAC[molecular formula][ ... national GB15892-2009 standardAppearance: upscale white and middle light yellow powderCharacteristics of spray-dryingPressure type spray drying ... treatment facilities.Installation, transport and storage requirements1, bags, light relief, so as to avoid damage.2, must ...