water treatment chemicals Effectively controls scales including CaCO3, CaSO4, SrSO4, BaSO4, CaF2, SiO2, Fe2O3. Used in RO,NF, water treatment chemicalsDescriptions:1>. XYME220 ... you to calculate the exact dose rate according to your water analysis.A detailed instruction is available from XIANGYU Company. ... yearsPacking: 25Kg plastic drum or according to client’s request. water treatment chemicals