DURAN® Round Bottom Flask, with standard ground joint
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DURAN® Round Bottom Flask, NS 24/29, 1000 mL
Due to their versatile application possibilities, round bottom flasks are widely used in the laboratory environment. Round flasks and the media they contain can be heated e.g. by heating hoods or liquid baths or cooled by a cold bath. However, selective warming or cooling must be avoided. Due to their shape, round bottom flasks are also suitable for vacuum applications. However, care must be taken to ensure that the glass surface is free of defects (no stops, deep scratches, etc.). The standard ground joint allows a precise connection to other ground joint components such as columns, thermometers, drip funnels, etc.
Features and Benefits:
Application: Distillation, Extraction, Connection to other glass vessels, Heating, Suitable for heating baths and mantles, Evaporation of liquids, Suitable for mounting on tripods, Drying of materials, Volume sizes 25 ml (NS 19/26), 50 ml (NS 24/29 and NS 29/32), 500 ml (NS 45/40), 1000 ml (NS 45/40) and 2000 ml (NS 45/40) are not accordting to DIN ISO.
more Due to their versatile application possibilities, round bottom flasks are widely used in the laboratory environment. Round flasks and the media they contain can be heated e.g. by heating hoods or liquid baths or cooled by a cold bath. However, selective warming or cooling must be avoided. Due to their shape, round bottom flasks are also suitable for vacuum applications. However, care must be taken to ensure that the glass surface is free of defects (no stops, deep scratches, etc.). The standard ground joint allows a precise connection to other ground joint components such as columns, thermometers, drip funnels, etc.
Features and Benefits:
- Complies with DIN ISO 4797
- Tight closure due to standard ground joint
- Fired-on, highly durable white print
- The geometry permits very uniform heating
- Closable with glass and plastic stopper
Application: Distillation, Extraction, Connection to other glass vessels, Heating, Suitable for heating baths and mantles, Evaporation of liquids, Suitable for mounting on tripods, Drying of materials, Volume sizes 25 ml (NS 19/26), 50 ml (NS 24/29 and NS 29/32), 500 ml (NS 45/40), 1000 ml (NS 45/40) and 2000 ml (NS 45/40) are not accordting to DIN ISO.
| (-) Technical data: | |
|---|---|
| Reg. Trademark: | DURAN® |
| Nominal volume: | 1 l |
| Ground size: | NS 24/29 |
| Number of necks: | 1 |
| Material: | Borosilicate Glass 3.3 |
| Asepsis: | No |
| EAN Code: | 4032051026889 |
| (-) Compliance information: | |
|---|---|
| WEEE obligation: | No |
- Article-No: 241705403
- Category: Round bottom flasks
Show all Round bottom flasks from Duran/DWK Life Sciences - Synonym(s): ground flasks, round bottom flasks with ST, round bottom flasks with ground jo
- Package: 10 piece
- Validity: 31.12.2026
- Last Update: 07.03.2026
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Bestellungen über den Warenkorb sind zur Zeit nicht möglich. Schreiben Sie uns daher bitte eine Mail.
The shop is currently in maintenance mode because of a critical security vulnerability that became known today: Link to the press information of the BSI
Orders via the basket are not possible at the moment. Please send us an email instead.



