Potassium tetrachloroiodate(III)
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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]
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| 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).
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Synthesis
editPotassium 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
References
edit- ^ Ejima, T.; de Boer, J. L.; Vos, A. (10 April 1963). "The refinement of the crystal structure of KICl4.H2O". Acta Crystallographica. 16 (4): 243–247. Bibcode:1963AcCry..16..243E. doi:10.1107/S0365110X63000682.
- ^ Derakhshan, Behzad M.; Finch, Arthur; Gates, Peter N.; Page, Terence H. (September 1979). "Thermochemistry of polyhalides. IV. Anhydrous and hydrated potassium tetrachloroiodates". Thermochimica Acta. 32 (1–2): 317–320. Bibcode:1979TcAc...32..317D. doi:10.1016/0040-6031(79)85120-5.
- ^ "Science made alive: Chemistry/Compounds". woelen.homescience.net.
- ^ "Synthesis of Potassium Tetrachloroidate". prepchem.com.
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