Description
Pear shape flasks DURAN® featuring a standard ground joint 14/23 and 50 ml capacity provide a versatile mid-size vessel for laboratory synthesis, concentration and sample handling. The characteristic pear geometry funnels liquid toward the bottom, aiding complete recovery of product and reducing hold-up compared with cylindrical forms. The NS 14/23 ground joint ensures leak-tight coupling to condensers, dropping funnels, drying tubes and other standard joint components. Produced in DURAN® glass from manufacturer Lenz, the flask is suited to everyday organic chemistry, extraction work-ups and preparative steps where controlled heating and clear visual monitoring are needed. Offered as one piece with a weight of 0,040 kg, it fits directly into common 14/23 joint assemblies used across research and teaching benches. The 50 ml working volume balances manageable scale with sufficient headspace for reflux or gentle evaporation. Choose this pear-shaped flask when a durable, jointed glass vessel of defined capacity is required for reproducible small- to medium-scale laboratory operations.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Pear shape flask
- Glass: DURAN®
- Standard ground joint: 14/23
- Capacity: 50 ml
- Weight: 0,040 kg
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Questions about Pear shape flasks, DURAN®, standard ground joint 14/23, 50 ml, 1 pc
What is this article?
Pear shape flasks, DURAN®, standard ground joint 14/23, 50 ml, 1 pc is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Labware.
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 Beakers & flasks. The sub-category is Round-bottom flasks. The catalogue is Labware.
Shelves beside this one are Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
