Description
Pear shape flasks, DURAN®, with standard ground joint 14/23 and a nominal capacity of 5 ml are compact laboratory vessels for small-scale chemical work. The pear-shaped body concentrates liquid at the base, supporting efficient heating, stirring and mixing when only limited reagent volumes are available. A precision standard ground joint 14/23 provides a secure, interchangeable connection to condensers, adapters, stoppers and other jointed glassware commonly used in organic and preparative chemistry. These flasks are made from DURAN® glass by manufacturer Lenz and suit micro-scale synthesis, sample work-up, temporary intermediate holding and teaching practicals. Each pack contains 1 pc and the flask weighs approximately 0,014 kg, so it is easy to handle on the bench, in a heating block or with a small mantle. The 5 ml format is practical wherever a short-path pear profile and NS 14/23 compatibility are required. Research, analytical and educational laboratories can integrate this single-unit pear flask into existing jointed assemblies without changing established glassware standards.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Type: Pear shape flask
- Brand: DURAN®
- Ground joint: Standard 14/23
- Capacity: 5 ml
- Weight: 0,014 kg
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Questions about Pear shape flasks, DURAN®, standard ground joint 14/23, 5 ml, 1 unit(s)
What is this article?
Pear shape flasks, DURAN®, standard ground joint 14/23, 5 ml, 1 unit(s) 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.