MnO2 Resin

MnO2 Resins are available in two particle sizes (100-200 mesh, 100-600 micron), in bottles.

MnO2 Resin is useful for the separation of Ra from water samples.

Different parameters such as pH, reaction time, resin quantity, salt effect and flow rate have been evaluated when separating Ra from water using MnO2. For most of the experiments, Ba-133 was used as tracer for Ra.

MnO2 Resin shows the greatest affinity for Ba-133 when the pH of the solution is between 4 and 8.

The higher the salt content of the water, the slower the kinetics of Ba (or Ra) uptake. The equilibrium is reached after 15 minutes of contact for samples with a salt content between 0 and 0.02%, whereas 25 minutes are required when the water contains 0.35% salt. For waters which composition is similar to seawater (3.5% salts), the equilibrium is reached in 90 minutes.

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