DURAN 217216404 Narrow Mouth 2000 mL
The DURAN 217216404 is a 2,000 mL round-bottom reaction flask with a narrow mouth and a beaded rim, made of DURAN® borosilicate glass 3.3. Its round-bottom geometry ensures very uniform heating, making it highly suitable for boiling, reflux, distillation, or any reaction work where temperature evenness matters.
Key features include:
Capacity: 2,000 mL fluorinated vessel with single neck.
Dimensions: Outer diameter ≈ 166 mm; height ≈ 260 mm.
Neck: Narrow-mouth (neck opening smaller compared to body) with beaded rim to reduce risk of chipping and improve strength.
Material: DURAN® borosilicate glass 3.3 — high resistance to chemical attack, low thermal expansion, compatible with standard lab sterilization.
Uniform Wall Thickness: Helps with thermal stability and reduces localized stress.
Standards and Compliance: Autoclavable at ~ 121 °C. Conforms to quality manufacturing and labware standards.
Packaging: Supplied in packs of 10 units.
Key Specifications
| Parameter | Value |
|---|---|
| Catalogue Number | 217216404 |
| Nominal Capacity | 2,000 mL |
| Material | DURAN® Borosilicate Glass 3.3 |
| Body Diameter (Outer) | ~ 166 mm |
| Height | ~ 260 mm |
| Neck Type | Narrow mouth, beaded rim |
| Bottom Type | Round bottom |
| Uniform Wall Thickness | Yes |
| Autoclavable | Yes (~121 °C) |
| Packaging | Case of 10 units |
Applications & Use-Cases
Reaction vessels (boiling, reflux, distillation) requiring uniform heat distribution.
General lab heating and chemical work where durability and reliability of glassware are critical.
Useful in organic chemistry, synthesis, teaching labs, R&D where 2 L scale is appropriate.
When sterilization and repeated use are expected.
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