After cooling to room temperature the samples were diluted to volume with purified water. 5ml aliquots of each sample were pipetted into separate 100.0ml volumetric flasks and each flask was diluted to volume with 0.025M FeCl3.
Aftercooling to room temperature the samples werediluted to volume with purified water. 5mlaliquots of each sample were pipetted intoseparate 100.0ml volumetric flasks and eachflask was diluted to volume with 0.025M FeCl3.