Borosilicate 3.3 Glass Round Bottom Flask, For Laboratory, Feature : Durable, Lightweight, Optimum Quality

These Glass Round Bottom Flask have long necks with tooled mouths. They are manufactured from 3.3 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for boiling flasks is 230�°C. The capacity of flask started from 25 Ml to 20000 Ml