Source: Le Radium, February 1904.

From Trafficking materials and gendered experimental practices: Radium research in early 20th century Vienna by Maria Rentetzi

  • European: 1800-present
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  • The use of water bathing in fractional crystallization. As radium chloride is less soluble in water than barium chloride, if a mixture of these two is dissolved in water, the first crystals that are deposited are richer in radium than those that remain within the solution. Source: Le Radium, February 1904.