... ,paper-making, printing ,dyeing, tanning and other industries.3. Features: a) Spray dried poly aluminium chloride PAC 3A is obviously ... poly aluminium chloride PAC 3A is suitable for wide range of water quality,alum flower formed is quick and ... 02pH value(1% aqueous solution) 3.5-5.0 3.5-5.0 3.5-5.0 3.5-5.0 Ammoniacal nitrogen %, ... .01 0.01 0.01 Fe, %, ≤ 2.0-3.02.0-3.00.60.6As, %, ≤ 0.0002 0.0002 0. ...