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Rubidium sulfate

Basic information Physical Properties Preparation Safety Related Supplier
Rubidium sulfate Basic information
Rubidium sulfate Chemical Properties
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-37/39
  • WGK Germany 2
  • RTECS WS8350000
  • TSCA Yes
  • HS Code 28332980
MSDS
Rubidium sulfate Usage And Synthesis
  • Physical PropertiesWhite orthogonal crystal; density 3.6 g/cm3; melts at 1,050°C; very soluble in water, 36 g/100g at 0°C and 82 g/100g at 100°C.
  • PreparationRubidium sulfate can be prepared by neutralization of a solution of rubidium hydroxide or carbonate with sulfuric acid:
    2RbOH + H2SO4 → Rb2SO4 + 2H2O
    Rb2CO3 + H2SO4 →Rb2SO4 + H2O + CO2
    Alternatively, Rb sulfate may be obtained by treating a hot solution of rubidium aluminum sulfate (rubidium alum) with ammonia solution.
    Aluminum hydroxide precipitates. The product mixture is filtered. The filtrate on evaporation crystallizes rubidium sulfate.
  • Chemical Propertiescolorless crystal(s) [MER06] [HAW93]
  • Physical propertiesWhite orthogonal crystal; density 3.6 g/cm3; melts at 1,050°C; very soluble in water, 36 g/100g at 0°C and 82 g/100g at 100°C.
  • Purification MethodsCrystallise the sulfate from water (1.2mL/g) between 100o and 0o.
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