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| | Radium Sulfate Basic information |
| | Radium Sulfate Chemical Properties |
| solubility | insoluble in H2O, acid solutions | | form | white crystals | | color | white crystals, crystalline | | Water Solubility | insoluble H2O, acids [HAW93] | | Solubility Product Constant (Ksp) | pKsp: 10.44 | | CAS DataBase Reference | 7446-16-4 |
| | Radium Sulfate Usage And Synthesis |
| Description | 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. | | Chemical Properties | white, rhomb crystal(s) when pure, else colored yellow, orange, pink; radioactive [HAW93] [CRC10] | | Uses | 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↑). |
| | Radium Sulfate Preparation Products And Raw materials |
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