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Element Index

Erbium

Europium

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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Erbium oxide

CAS no: 12061-16-4   Formula: Er2O3   Molecular weight: 382.52

Physical Data

Appearance: Pink powder

Melting point: 2344°C
Boiling point: 3920°C

Density: 8.64 g/cm3
Solubility: -


Thermodynamic Data

Enthalpy of formation: -1897.9 kJ/mol
Gibbs energy of formation: -1808.7 kJ/mol

Entropy: 155.6 J/mol K
Heat capacity: 108.5 J/mol K


Production and preparation


Behavior and Chemical Properties


History and Uses


Hazard, Storage and Handling

(Last update: July 2003)


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