SbCl₅ (l) + 2 KI (aq) → SbCl₃ (aq) + 2 KCl (aq) + I₂ (s)

This is an oxidation-reduction (redox) reaction:

KI is a reducing agent, SbCl₅ is an oxidizing agent.

Reactants:

• SbCl₅ – Antimony pentachloride , Antimony(V) chloride
  • Other names: Antimonic chloride , Antimony perchloride
  • Appearance: Colorless or reddish-yellow (fuming) liquid, oily
• KI
  • Names: Potassium iodide , KI , Thyrosafe ... show moreThyroshield , Iosat , Kaliumiodid , Nukepills , Potassium Iodide show less

Products:

• SbCl₃ – Antimony trichloride , Trichlorostibane
  • Other names: Antimony(III) chloride , Butter of antimony , Antimonous chloride ... show moreStibous chloride , Trichlorostibine , Antimony(III) trichloride , Sb2Cl6 , Antimony chloride , SbCl3 show less
  • Appearance: Colorless solid, very hygroscopic ; Colourless hygroscopic crystals with pungent odour
• KCl
  • Names: Potassium chloride , Sylvite , Muriate of potash ... show moreKlor-Con M15 , K-Lease , Klor-Con 8 , K+10 , K+8 , Klor-Con M10 , Micro-K 10 , Kato , Kaon Cl-10 , Kaon-Cl , Kaon Cl , Micro-K , Klor-Con 10Meq , Klor-Con 10 , Micro-K Ls , K-dur , Klor-Con , Klor-Con M20 , Slow-K , Ten-K , Klotrix , [KCl] , Kaliumchlorid , Chloride of potash , Kaon-CL 10 , Klor-CON , KCl , Monopotassium chloride , K-Tab , Chlorid draselny , Potassium Chloride show less
  • Appearance: White crystalline solid ; Colourless hygroscopic crystals
• I₂
  • Names: Iodine , Jod , Iode ... show moreIodio , Yodo , Iodine crystals , Molecular iodine show less
  • Appearance: Bluish black or dark purple crystals with pungent odour ; Violet solid with a sharp, characteristic odor.