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
Badoit radium-226 and 713 Bq/m3 of radium-228. After treatment, it contains 5.45 mg/m3 of uranium, 28 Bq/m3 of radium 226 and 44 Bq/m3 of radium 228. Badoit Badoit is a brand of mineral water obtained from natural sources at Saint-Galmier, France. The water is naturally carbonated, on its journey through granite rocks and subterranean gas deposits. Badoit is named after Auguste Badoit, who began bottling the water of Saint Galmier in 1838. In 1971, Badoit became part of Evian SA, which later became a fully owned subsidiary of Boussois Souchon Neuvesel. Today, Badoit is a product and brand of the Danone