The laboratory grade is used for research analytical purposes Iodine is also used in medical treatment as tincture and iodioform, it is employed in the preparation of certain drugs and in the manufacture of some printing inks and dyes. Silver iodine is used in photography. Iodine is added to almost all the table salt and is used as a supplement to animal feed. It is also an ingredient of water purification tablets that are used for drinking water preparation. For many of these uses iodine is turned into iodides.
\nAtomic number | 53
\nAtomic mass | 126.9045 g.mol -1
\nElectronegativity according to Pauling | 2.5
\nDensity | 4.93 g.cm-3 at 20\u00b0C
\nMelting point | 114 \u00b0C
\nBoiling point | 184 \u00b0C
\nVanderwaals radius | 0.177 nm
\nIonic radius | 0.216 nm (-1) ; 0.05 nm (+7)
\nIsotopes | 15
\nElectronic shell | [ Kr ] 4d10 5s25p5
\nEnergy of first ionisation | 1008.7 kJ.mol -1
\nStandard potential | + 0.58 V ( I2\/ I\u2013 )
\nDiscovered | Bernard Courtois in 1811
\nWeight | 1.1 kg
\nDimensions | 20 \u00d7 15 \u00d7 15 cm<\/p>\n
\u2022 Atomic number: 53
\n\u2022 Atomic mass: 126.9045 g.mol -1
\n\u2022 Electronegativity according to Pauling: 2.5
\n\u2022 Density: 4.93 g.cm-3 at 20\u00b0C
\n\u2022 Melting point: 114 \u00b0C
\n\u2022 Boiling point: 184 \u00b0C
\n\u2022 Vanderwaals radius: 0.177 nm
\n\u2022 Ionic radius: 0.216 nm (-1) ; 0.05 nm (+7)
\n\u2022 Isotopes: 15
\n\u2022 Electronic shell: [ Kr ] 4d10 5s25p5
\n\u2022 Energy of first ionisation: 1008.7 kJ.mol -1
\n\u2022 Standard potential: + 0.58 V ( I2\/ I\u2013 )
\n\u2022 Discovered: Bernard Courtois in 1811<\/p>\n","protected":false},"excerpt":{"rendered":"
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