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Hazard Information

Material Safety Data Sheet(MSDS)

Questions And Answer

• Uses

  Iodine trichloride is used in organic synthesis as a chlorinating and iodinating agent to introduce chlorine and iodine into organic compounds producing their halogen derivatives. It also is used as a topical antiseptic. ;

• Preparation

  Iodine trichloride is prepared by adding iodine to liquid chlorine in a stoichiometric amount:
  3Cl2 + I2 → 2ICl3 ;

• Reactions

  Iodine trichloride decomposes on heating at 77°C, forming iodine monochloride and chlorine:
  ICl3 →ICl + Cl2
  It dissolves in concentrated hydrochloric acid , forming HICl4•4H2O:
  ICl3 + HCl + 4H2O → HICl4•4H2O
  Iodine trichloride hydrolyzes in water or dilute acids, the products depending upon reaction conditions. This reaction usually is similar to iodine monochloride:
  4ICl3 + 6H2O → I2 + 6HCl + 2HIO3 + 3Cl2
  It combines with potassium chloride, forming a complex salt, KICl4:
  ICl3 + KCl → KICl4
  Reaction with acetylene produces chlorovinyl iododichloride, containing two active chlorine atoms attached to the iodine atom:
  ICl3 + HC≡CH → ClCH=CHICl2
  The above product has many applications in chemical synthesis. ;

• Toxicity

  Iodine trichloride is highly corrosive. Contact with skin can cause a burn. Vapors are highly irritating to eyes and respiratory tract. ;

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