Group 7: Halogens
Read our general notes on Risk Assessment
I understand that Fluorine reacts vigourously with water to form HF and Oxygen. But what are the reactions for Chlorine with water, bromine with water and iodine with water?
Corrie writes ....
Dissolved chlorine reacts with water to a small extent, leading to the equilibrium:
Cl2(aq) + H2O(l) <=> HCl(aq) + HOCl(aq)
Bromine is more soluble in water than chlorine, but the above equilibrium, to form HBr and HOBr, occurs to a much lesser extent.
Iodine is only sparingly soluble in water (but much more soluble in KI solution) and the above equilibrium, to form HI and HOI, occurs to a negligible extent.
Risk assessment
Before attempting any practical work based on the advice and suggestions on this website, you must do the following. Identify any hazards, assess the risks from these hazards, and then decide appropriate control measures to reduce the risks. You must have these approved by those in authority in your school or college laboratory. Do not rely on what is said on this website.
For further guidance see our tutorial on Risk Assessment.
Rate this page or react
Share your views on this page, 2 ratings so far
, rated at 
updated: 09 March 2007
