System to describe the chemical formulas for WEB.

Iodine

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Iodine

Molecular formula: I2 CAS# 7553-56-2
Categories: Diatomic molecule , simple substances , Halogen
PubChem CID: 807 | CHEBI:17606 | NSC 42355 | ChemSpider ID: 785
Names
English:
Caswell No. 501
Diiodine
EINECS:231-442-4
Eranol
Iodine [Wiki]
Iodine crystals
Iodine solution
Molecular iodine
Tincture iodine
Vistarin

Variants of the formula:

I2
I-I
I_(x1.4)I
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Iodine is involved

  • 2{M} + {Hal}2 = 2{M}{Hal} , where M = Li Na K Rb Cs; Hal = F Cl Br I
  • H2 + {Hal}2 -> 2H{Hal} , where Hal = F Cl Br I
  • SO2 + {Hal}2 + 2H2O -> H2SO4 + 2H{Hal} , where Hal = Br I
  • Fe + I2 -> FeI2
  • 2SO3 + 2KI -> SO2 + I2 + K2SO4