... scales including CaCO3, CaSO4, SrSO4, BaSO4, CaF2, SiO2, Fe2O3. Used in RO,NF, water treatment chemicalsDescriptions:1>. XYME220 is highly effective ... to control precipitates and reduce particulate fouling in membrane separation systems.2>. It can be used in reverse osmosis (RO), nano-filtration (NF ... ,Dosage:Generally, the dosage is 2 – 6 mg/L in RO system.Our technician can help you to calculate the ...