Radium of radium Curie used the residues after extraction of uranium from pitchblende. The uranium had been extracted by dissolution in sulfuric acid leaving radium sulfate, which is similar to barium sulfate but even less soluble in the residues. The residues also contained rather substantial amounts of barium sulfate which thus acted as a carrier for the radium sulfate. The first steps of the radium extraction process involved boiling with sodium hydroxide followed by hydrochloric acid treatment to remove as much as possible of other compounds. The remaining residue was then treated with sodium carbonate to convert the barium sulfate into
Radium Cruiser the Mackenzie River for almost eight months of the year. Like her sister ship, "Radium Express", she was smaller than the "Radium King" and "Radium Queen", just long. In 2005 Atomic Energy of Canada published a study of the toxic legacy of the mining of radioactive ore at Port Radium. According to the report all but one of the surviving vessels of the Radium line were found to be free of contamination, with the exception of the "Radium Gilbert", but the disposition of the "Radium Cruiser" was not known. Radium Cruiser The Radium Cruiser was a Russel Brothers tugboat operated