Thursday, 2 August 2018

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Reaction of Hydrogen Chloride with Potassium heptaoxodichromate

Hydrogen Chloride reacts with potassium dichromate

The reaction of Hydrogen Chloride and potassium heptaoxodichromate produces; chlorine, chromium(III) chloride, potassium chloride and water. 

This reaction takes place at a temperature of 60-80°C.

Balanced Reaction

14HCl + K2Cr2O7 → 3Cl2 + 2CrCl3 + 2KCl + 7H2O


14 moles of Hydrogen Chloride will react with potassium heptaoxodichromate to produce 3 moles of chlorine as seen above. 


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