Potassium tetrachloroiodate(III)

Potassium tetrachloroiodate(III) is a coordination compound with the chemical formula KICl₄. Its monohydrate crystal structure belongs to the monoclinic system and has the space group P2₁/n, yellow crystals.^[1][2]

Potassium tetrachloroiodate(III)

Identifiers
CAS Number	14323-44-5 Y
3D model (JSmol)	Interactive image
ChemSpider	67168471
PubChem CID	23662692
CompTox Dashboard (EPA)	DTXSID70963830
InChI InChI=1S/Cl4I.K/c1-5(2,3)4;/q-1;+1 Key: IHRCHDIHZYZUCK-UHFFFAOYSA-N
SMILES Cl[I-](Cl)(Cl)Cl.[K+]
Properties
Chemical formula	KICl4
Molar mass	307.80 g·mol−1
Melting point	116 °C (241 °F; 389 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

Potassium tetrachloroiodate(III) can be obtained by reacting iodine, potassium chlorate, and 6 mol/L hydrochloric acid solution containing 1.5 mol/L potassium chloride, condensing, filtering, and vacuum drying. The reaction is:^[3][4]

2 KClO₃ + I₂ ⇌ 2 KIO₃ + Cl₂

KIO₃ + 6 HCl ⇌ KICl₄ + Cl₂ + 3 H₂O