... activity degree 300ml, whiteness more than 90%.Powdered Calcium oxide, major parameters: CaO content: 90%~95% or 95 ... can be customized. It is widely used in solubilizing agent, chemicals, paper-making, water treatment, wastewater purification ... and treatment, leather-making, rubber and plastics filling agent, roadbed improvement, waste incineration, desulfuration and deacidification of ...