Description
Pear-shaped flask with standard ground joint, without stopper, produced from Boro 3.3 glass with white inscription and conforming to DIN 12383. This vessel has a nominal volume of 250 ml and a female ground joint NS 29/32, enabling stable connection to larger-bore stoppers, adapters and condensers. The pear-shaped body directs residual liquid into a compact base, which assists evaporation, distillation and recovery of intermediate sample volumes. Supplied without a stopper, the joint remains open so users can select the accessory that matches their protocol. Boro 3.3 glass supplies the chemical resistance and thermal performance expected in routine laboratory practice. White inscription aids rapid identification during multi-flask workflows. Available in packs of 10 pieces from manufacturer Hecht, these flasks align with standardised European ground-joint systems and are appropriate for organic synthesis, sample concentration and general preparative chemistry where a 250 ml pear flask with NS 29/32 is required.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Volume: 250 ml
- Ground joint: NS 29/32
- Material: Boro 3.3
- Inscription: White
- Standard: DIN 12383
Récemment consulté
Vous aimerez peut-être aussi
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Flasks, boiling, pear shape with socket, DIN 12383, Boro 3.3, printing white,
What is this article?
Flasks, boiling, pear shape with socket, DIN 12383, Boro 3.3, printing white, is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in Ballons à fond rond, inside Béchers & fioles, in Matériel de laboratoire.
A round-bottom flask is the heating flask of a distillation or a reflux. The curved wall takes the heat, and the ground neck connects to a still head or a condenser. The joint size, not only the volume, has to match the rest of the set.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Béchers & fioles. The sub-category is Ballons à fond rond. The catalogue is Matériel de laboratoire.
Shelves beside this one are Béchers, Fioles Erlenmeyer, Récipients de réaction & récipients à double enveloppe, Fioles à fond plat, Fioles (autres) and Accessoires pour béchers & fioles.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.