1 — Mouth / rim
Fire-polished and tooled — no sharp edges, no micro-cracks for stress to start from.
VTN-221
Iodine Determination Flask
Stoppered conical with water-seal collar.
Iodine flasks with hollow-flanged mouth forming a liquid seal around the ground stopper — nothing volatile escapes the headspace during halogen titrations.
Material
Borosilicate glass 3.3 (ASTM E438 Type I, Class A)
Complies with
DIN 12474
Ordering information 2 variants
| Cat. no. | Capacity / size | Joint | Pack |
|---|---|---|---|
| VTN-221-250 | 250 mL | NS 29/32 | 2 |
| VTN-221-500 | 500 mL | NS 29/32 | 2 |
Why this one
- Water-seal collar
- Interchangeable NS 29/32 stopper
- Graduated body
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