Iodine
Properties
- Molecular formula
- I2
- Molar mass
- 253.81 g/mol
- Exact mass
- 253.8089 Da
- Density
- 4.9 g/mL
- Melting point
- 113.7 °C
- Boiling point
- 184.4 °C (at 800 Torr)
- Water solubility
- 300 mg/L (20 °C)
- logP
- 1.77Crippen estimate
- Polar surface area
- 0.0 Ų
- H-bond donors / acceptors
- 0 / 0
- Rotatable bonds
- 0
Hazards
Warning
- H312 Harmful in contact with skinAcute toxicity, dermal
- H332 Harmful if inhaledAcute toxicity, inhalation
- H400 Very toxic to aquatic lifeHazardous to the aquatic environment, acute hazard
Harmonised EU classification (CLP Annex VI, index 053-001-00-3), via PubChem.
Precautionary statements
P261, P271, P273, P280, P302+P352, P304+P340, P317, P321, P362+P364, P391, P501
Identifiers
CAS number
7553-56-2SMILES
IIInChIKey
PNDPGZBMCMUPRI-UHFFFAOYSA-NInChI
InChI=1S/I2/c1-2Characterization data
Calculated from the structure, in the form journals print them.
¹H NMR
Predicted ¹H NMR (400 MHz, CDCl₃) δ .¹³C NMR
Predicted ¹³C NMR (101 MHz, CDCl₃) δ .[M + H]+
[M + H]+ Calcd for HI2 254.8162[M + Na]+
[M + Na]+ Calcd for I2Na 276.7982Weigh it out
Type any one amount. The others follow from the molar mass and density.
Names and synonyms
20 names · show all
- Iodine crystals
- Iodine sublimed
- Iodine colloidal
- Eranol
- Iodine (127I2)
- Molecular iodine
- Iosan superdip
- Actomar
- Diiodine
- Jodosan
- Diatomic iodine
- Iodine molecule (I2)
- Iodel FD
- NSC 42355
- Tegodyne
- DentaPure DP 90
- eXIA 160
- Iodosteryl
- Biojodis
- Yoddar
Safety data sheets
One stored sheet lists this compound in section 3, matched by the CAS number 7553-56-2. Each row opens the sheet with its composition and PDF.
Work with Iodine
Stereoisomers, salts and isotopologues
The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.