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Element Index

Radium

Radon

Rhenium

Rhodium

Rubidium

Ruthenium

Chemical's truth
Ricin is a natural poison extracted from the castor oil bean with a quoted LD50 of 20,000 ng/kg.


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Rubidium bromide

CAS no: 7789-39-1   Formula: RbBr   Molecular weight: 165.372

Physical Data

Appearance: White cubic crystals, hygroscopic

Melting point: 682°C
Boiling point: 1340°C

Density: 3.35 g/cm3
Solubility: 116 g/100 g H2O (25°C)


Thermodynamic Data

Enthalpy of formation: -394.6 kJ/mol
Gibbs energy of formation: -381.8 kJ/mol

Entropy: 110 J/mol K
Heat capacity: 52.8 J/mol K


Production and preparation


Behavior and Chemical Properties


History and Uses


Hazard, Storage and Handling

(Last update: November 2004)


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