Description
Evaporating flask, DURAN®, pear-shaped is a laboratory glass vessel for larger-scale solvent removal and sample concentration. This pear-shaped flask is equipped with a standard ground joint NS 29/32 and a nominal capacity of 2000 ml, suited to rotary-evaporation and preparative work that demands substantial working volume. Produced from DURAN® glass, it offers the chemical and thermal performance expected of jointed laboratory glassware. The pear geometry encourages uniform film formation on the inner wall and practical recovery of concentrated residues after evaporation under reduced pressure. Supplied as one piece with a weight of 0,456 kg, the flask connects directly to matching NS 29/32 condensers, adapters and rotary evaporator assemblies. This model from manufacturer Lenz forms part of the established line of round flasks and flasks with ground glass joints used in analytical, synthetic and preparative laboratories. The standard ground joint provides a secure, interchangeable interface to apparatus trains. Clear pear contours assist visual monitoring of bulk process liquids and simplify transfer of the concentrate. Choose this 2000 ml DURAN® evaporating flask when high capacity and NS 29/32 connectivity are required.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Product type: Evaporating flask
- Glass type: DURAN®
- Shape: Pear-shaped
- Standard ground joint: NS 29/32
- Nominal volume: 2000 ml
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Questions about Evaporating flask, DURAN®, pear-shaped, with standard ground joint 29/32, 2000ml
What is this article?
Evaporating flask, DURAN®, pear-shaped, with standard ground joint 29/32, 2000ml 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.