DURAN 212263603 Wide Neck Erlenmeyer Flask 250 mL
The DURAN 212263603 is a 250 mL wide-neck (flat-bottom) Erlenmeyer flask made from DURAN® borosilicate glass 3.3, offering excellent chemical resistance, low thermal expansion, and high durability under heating and handling. Designed for laboratories where ease of filling, pouring, and cleaning are important, this wide-mouth flask simplifies operations like reagent addition and washing.
Key features:
Wide neck with an outer diameter of ≈ 50 mm, allowing easy access for pouring solids or large-bore pipettes.
Body (bottom) outer diameter ≈ 85 mm, height ≈ 140 mm.
Approximate printed graduations (white enamel) for rough volume estimation.
Beaded rim for enhanced durability and reduced risk of chipping.
Uniform wall thickness to improve thermal shock resistance.
Includes Retrace Code (batch/lots), offering traceability and quality assurance.
Complies with DIN ISO / DIN EN ISO 24450 (standard for wide-neck Erlenmeyer flasks) and is autoclavable (~121 °C).
Key Specifications
| Parameter | Value |
|---|---|
| Catalogue / Model Number | 212263603 |
| Nominal Capacity | 250 mL |
| Material | Borosilicate glass 3.3, Type I / neutral glass |
| Flask Type | Wide-neck, flat-bottom Erlenmeyer flask |
| Neck Outer Diameter | ~ 50 mm |
| Bottom / Body Diameter | ~ 85 mm |
| Height | ~ 140 mm |
| Rim Type | Beaded rim |
| Graduations | Approximate printed scale |
| Traceability | Retrace Code (Batch ID) |
| Standards Compliance | DIN EN ISO 24450 (Wide-neck flasks) |
| Autoclavable | Yes (~ 121 °C) |
Applications & Use Cases
Useful for lab tasks requiring easier filling/cleaning, such as adding powders or reagents
Suitable for mixing, heating, and storage of ~250 mL volumes where accessibility is important
Good in microbiology, chemistry, teaching labs, QC labs
Autoclave sterilizable for reuse
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