... building material industry, it is mainly used as a water softening agent in solution for printing, dyeing, ... is 2.484 (20°C), easily soluble in water, but not in organic solution, absorbent to ... Mg, Cu and Fe; it is a fine agent for water treatment. Plastic-woven sack with inner polythene ... film; net weight at 25kg, 50kg or 1,000kg. Store at a ...