... the property of hygroscopicity. 2, Usage It is widely used in water treatment of drink water, industry water, various industrial waste water ... , 2-5% is also can be used, 5-10% is fit for industry waste water treatment. 2, As to the dosage, it ... ≤0.001 Hg content ≤0.00001 4.ApplicationMainly used on various industrial wastewater treatment, such as paper-making wastewater, municipal wastewater, oily ...