Description
Pear-shaped flask, 5 ml, socket NS 14,5/23 is a small single-neck laboratory flask manufactured from borosilicate glass 3.3 for micro-scale reactions, distillations and sample handling. It features a nominal volume of 5 ml, a diameter of 26 mm and a height of 70 mm, making it ideal where limited sample volumes must be processed efficiently. The ground joint socket NS 14,5/23 provides a standardised connection for condensers, stoppers or micro-adapters. Supplied by manufacturer Rettberg, the flask offers the chemical resistance and thermal-shock tolerance expected of borosilicate glass 3.3. Its low net weight of 0,015 kg ensures convenient handling under the fume hood or on the bench. The pear-shaped body concentrates liquid at the bottom, facilitating complete recovery and efficient heating of small volumes. Clear glass walls permit continuous visual inspection of contents. This single-piece vessel is suited to organic synthesis, analytical chemistry and educational laboratories requiring compact glassware with NS 14,5/23 joints for precise small-scale work.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 5 ml
- Diameter: 26 mm
- Joint size: NS 14,5/23
- Material: Borosilicate glass 3.3
- Height: 70 mm
- Technical Information Sheet:
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Questions about Pear shape flask, 5 ml, socket size 14,5/23
What is this article?
Pear shape flask, 5 ml, socket size 14,5/23 is the article on this page. Luminix Health distributes Rettberg 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?
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.