Description
Evaporating flask, DURAN®, pear-shaped is a larger laboratory glass vessel for concentration, solvent stripping and rotary evaporation using standard ground-joint equipment. The flask offers a nominal capacity of 1000 ml together with a standard ground joint NS 29/32, so it couples directly to common rotary evaporator vapour ducts and related glass assemblies. Its pear-shaped profile promotes a useful liquid film during rotation and channels remaining concentrate toward the joint area, which simplifies collection of viscous or small-volume residues. Fabricated from DURAN® glass, it supports typical workflows in organic chemistry, natural-product isolation and sample preparation where joint interchangeability and glass durability are required. The article is delivered as 1 pc with a weight of 0,300 kg, remaining practical to mount and balance on standard evaporator hardware. Available from manufacturer Lenz, this 1000 ml version suits labs that already work with NS 29/32 pear flasks and need greater working volume for scale-up or larger batches. It is well matched to pharmaceutical, industrial and research settings that depend on reliable pear-shaped evaporating flasks for reduced-pressure evaporation.
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-shaped evaporating flask
- Material: DURAN® glass
- Capacity: 1000 ml
- Ground joint: NS 29/32
- Shape: Pear-shaped
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Questions about Evaporating flask, DURAN®, pear-shaped, with standard ground joint 29/32, 1000ml
What is this article?
Evaporating flask, DURAN®, pear-shaped, with standard ground joint 29/32, 1000ml 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.