The florence flask has several uses. It is used as an item of laboratory glasswear. This flask can be used to hold chemical solutions. It is designed to heat its contents evenly and with an ease to swirl the contents also. The florence flask, named after Florence, Italy, is normally used distillation experiments. I found this information at
. www.cartage.org.lb/en/themes/Sciences/Chemistry/Analyticalchemistry/LabEquipment/LabEquipment.htm