OK many of you will have seen the reaction of sulphuric acid with table sugar, it is a reaction which tends to make lots of steam, acid spray and a big black tar thing. I choose to do a related dehydration reaction recently. I choose to react a cheaper carbohydrate (bread) with sulphuric acid.
This reaction is a bit more gentle than the reaction of sugar, here is the film of it. I will explain in the next post what is happening.