... 2.Basicity%:40-90 3.Water insoluble matter%/<1.0 4.PH(1% water solution):3.0-5.0 We are ... . 1, purified drinking water, sewage; 2, industrial water purification, industrial wastewater, mining, oil field injection water, making water purification, metallurgy, coal ... washing, leather and all kinds of chemical waste water treatment; 3, industrial application; paper sizing, printing dyeing, ...