Radium Sulfate

Radium Sulfate 화학적 특성, 용도, 생산

• 개요

  Radium sulfate has the molecular formula of RaSO4 and the molecular weight of 322.0626 g/mol. It can be prepared by dissolving radium oxide in sodium sulfate solution:
  RaO+Na2SO4+H2O ? RaSO4+NaOH
  Radium sulfate is insoluble in water with a solubility product of 3.66×10^-11. The solubility of radium sulfate would appear as at least 100-fold less than barium sulfate. Thus, it is the most insoluble sulfate known. Its CAS Number is 7446-16-4. It appears as white crystals. Since radium is a decay product in the ²³⁸U series which then allows radon to accumulate in household basements, it is RaSO₄ that has received some attention in the scientific literature.

• 화학적 성질

  white, rhomb crystal(s) when pure, else colored yellow, orange, pink; radioactive [HAW93] [CRC10]

• 용도

  Radium sulfate (RaSO4) is the most insoluble sulfate known in chemistry and is created when radium combines with a sulfate ion (Ra + H2SO4 → RaSO4 + H2↑).

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