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Radium hydroxide

Chemical compound From Wikipedia, the free encyclopedia

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Radium hydroxide is an inorganic compound of radium, hydrogen, and oxygen with the chemical formula Ra(OH)2.[1] Stability constant of aqueous RaOH+ ion pair at zero ionic strength is equal to 5.[2]

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Synthesis

Ra + 2H2O → Ra(HO)2 + H2
RaO + H2O → Ra(HO)2

Physical properties

Radium hydroxide forms colorless crystals that dissolve in water better than does barium hydroxide, and has more basic properties.

The compound forms a hydrate of the composition Ra(OH)2·8H2O.[3]

Radium hydroxide is a caustic, toxic, and corrosive substance. It is significantly more toxic than barium hydroxide (Ba(OH)2) and strontium hydroxide (Sr(OH)2).

References

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