- Made of high quality, heavy duty, 3.3 borosilicate glass
- Includes interchangeable glass penny-head stopper
- Perfect for any science or home laboratory
Iodine flask with ground joint and interchangeable stopper made of high quality, heavy duty 3.3 borosilicate glass. Used for iodine value determination. Ungraduated. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs borosilicate glass has the following heat tolerances: Strain Point 515°C | Annealing Point 565°C | Softening Point 820°C.