Iodine

I2CAS 7553-56-2253.81 g/mol

II

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)
logP
1.77Crippen estimate
Polar surface area
0.0 Ų
H-bond donors / acceptors
0 / 0
Rotatable bonds
0

Hazards

No GHS classification is on file for this compound. That is not evidence that it is harmless. Search the SDS library

Identifiers

CAS number
7553-56-2
SMILES
II
InChIKey
PNDPGZBMCMUPRI-UHFFFAOYSA-N
InChI
InChI=1S/I2/c1-2

Weigh 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.

Open in the SDS library

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.

Elsewhere