Hand sanitizer includes ethyl alcohol( highly flammable) and water and set it on fire. You can hold it in your hand and it won’ t burn very badly. Why? Because water has a high specific heat capacity so it takes a high temperature to boil water. The water protects the hands from being burnt.
Reaction: Ethanol + oxygen→ water + carbon-dioxide It is an exothermic reaction.
Warning: It should not be tried except in the laboratory with appropriate safety measures.