why is the head temperature kept below 90 c in the initial step of the dehydration reaction?

Answer 1

Sara, I don't know what you're talking about. What head? what reaction? Some kind of dehydration but we don't know that information unless you tell us.

Answer 2

I mean the head temp. is the higher temp., they called it like this in my university. anyway,this question in the dehydration of cyclohexanol. when we do elimination the heat temp. should be kept below 90 c, why?