Quick Answer: The Iodine Flask is a borosilicate glass flask with a funnel-shaped mouth and a ground glass stopper. Liquid held in the funnel forms a seal around the stopper so iodine vapour cannot escape.
Last updated: October 2026
Key Features
Low-expansion borosilicate glass
Funnel-shaped mouth that holds a liquid seal
Ground, interchangeable glass stopper
Resists thermal shock
Technical Specifications
Specification
Value
Material
Low-expansion borosilicate glass
Mouth
Integrated funnel for liquid seal
Stopper
Ground, interchangeable glass
About This Product
The iodine flask is used where a titration mixture must stand closed without losing volatile iodine. It is the standard vessel for finding the iodine value of oils and fats and for iodometric titrations in chemistry practicals. The Iodine Flask can be supplied on export terms to Belarus, Uruguay, Chad, Equatorial Guinea and Mongolia.
Frequently Asked Questions
Why does the Iodine Flask have a funnel-shaped mouth?
Liquid held in the funnel seals the ground stopper, so iodine vapour is not lost while the mixture stands.