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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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Rhenium(IV) oxide

CAS no: 12036-09-8   Formula: ReO2   Molecular weight: 218.206

Physical Data

Appearance: Gray orthorhombic crystals

Melting point: 900°C (decompose)
Boiling point: -

Density: 11.4 g/cm3
Solubility: -


Thermodynamic Data

Enthalpy of formation: -
Gibbs energy of formation: -167.0 kJ/mol

Entropy: -
Heat capacity:-


Production and preparation


Behavior and Chemical Properties


History and Uses


Hazard, Storage and Handling

(Last update: November 2004)


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