... d)factory direct selling e)large quantity and low price Poly Aluminium Chloride(PAC) Appearance: Yellow or reddish yellow,in powder and small pieces ... water and stir, make the solid dissolved, one ton of PAC can handle 10,000-100,000tons of source water.Features ... .008%(max)we are welcome you send inquire to us! Poly Aluminium Chloride (PAC)for water treatment