Poly aluminium chloride (PAC Powder) Product Name: Poly Aluminium Chloride (PAC Powder)Appearance: Pale Yellow PowderBulk Density gm/ml (min) : 0.65Aluminium as Al2O3 by mass: 28% to 30%Chloride as cl% by mass, max: 33%pH of 5% solution, w/v : 3.5- 4.5