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Element Index
Cadmium
Calcium
Carbon
Cerium
Chlorine
Chromium
Cobalt
Copper
Hydrogen
Chemical's truth
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Ricin is a natural poison extracted from the castor oil bean with a quoted LD50 of 20,000 ng/kg. |
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Calcium phosphate, tribasic
(calcium orthophosphate, bone ash)
CAS no: 7758-87-4 Formula: Ca3(PO4)2 Molecular weight: 310.77
Physical Data
Appearance: White amorphous powder
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Melting point: 1670°C
Boiling point: -
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Density: 3.14 g/cm3
Solubility: 0.00012 g/100 g H2O (20°C)
Solubility product, Ks: 2.07 x 10-33
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Thermodynamic Data
Enthalpy of formation: -4120.8 kJ/mol
Gibbs energy of formation: -3884.7 kJ/mol
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Entropy: 236.0 J/mol K
Heat capacity: 227.8 J/mol K
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Production and preparation
Occurs in nature as oxydapatit, voelicherite and whitlockite.
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Behavior and Chemical Properties
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History and Uses
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Hazard, Storage and Handling
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(Last update: March 2003) |
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