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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: avz2611 on August 20, 2014, 02:14:57 PM

Title: Briggs-Rauscher reaction : effect of sulphuric acid
Post by: avz2611 on August 20, 2014, 02:14:57 PM
when we were doing our practicals , we had this particular experiment . I noticed that if i add moore amount of sulphuric acid of same concentration , blue colour is observed late and number of oscillation also decrease . i was not able to give a reason for this . please help
Title: Re: Briggs-Rauscher reaction : effect of sulphuric acid
Post by: rwiew on August 20, 2014, 03:58:54 PM
Really cool reaction! Have you found the mechanism for it? Let's write it down and have a look at which steps require the presence of acid. You're increasing the concentration of sulphuric acid in the reaction mixture by adding more, so those steps will be responsible.