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Element Index (A)
Actinium
Aluminium
Americium
Ammonium
Antimony
Arsenic
Chemical's truth
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In December 1984, methyl isocyanate was accidentally released in a chemical plant at Bhopal, India, killing around 6000 people. |
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Ammonium iodide
CAS no: 12021-06-4 Formula: NH4I Molecular weight: 144.943
Physical Data
Appearance: White tetragonal crystals, very hygroscopic
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Melting point: 551°C (decompose)
Boiling point: 405°C (sublime)
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Density: 2.514 g/cm3
Solubility: 178 g/100 g H2O
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Thermodynamic Data
Enthalpy of formation: -201.4 kJ/mol
Gibbs energy of formation: -112.5 kJ/mol
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Entropy: 117 J/mol K
Heat capacity: -
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Production and preparation
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Behavior and Chemical Properties
Crystal and solution turn yellow on exposure to light and air due to liberation of iodine.
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History and Uses
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Hazard, Storage and Handling
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(Last update: February 2003) |
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