Description
Evaporating flask, DURAN®, pear-shaped is a laboratory glass vessel intended for solvent removal, concentration and related evaporation work with standard ground-joint apparatus. It combines a pear-shaped body with a nominal capacity of 500 ml and a standard ground joint NS 29/32, allowing direct connection to rotary evaporators and compatible glassware trains. The pear geometry supports even film distribution on the inner wall and helps gather residual concentrate toward the neck for straightforward recovery after a run. Made from DURAN® glass, the flask is suited to everyday organic synthesis, sample work-up and analytical preparation where chemical resistance and dimensional stability of the joint matter. Each unit is supplied as 1 pc(s) and has a weight of 0,200 kg, making it easy to handle on common evaporator clamps and joint clips. This model from manufacturer Lenz fits laboratories that standardise on NS 29/32 connections across distillation and concentration setups. It is appropriate for pharmaceutical, chemical and academic environments that rely on interchangeable pear-shaped evaporating flasks for routine reduced-pressure evaporation and solvent exchange.
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: Pear-shaped evaporating flask
- Material: DURAN® glass
- Capacity: 500 ml
- Ground joint: NS 29/32
- Shape: Pear-shaped
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Evaporating flask, DURAN®, pear-shaped, with standard ground joint 29/32, 500 ml
What is this article?
Evaporating flask, DURAN®, pear-shaped, with standard ground joint 29/32, 500 ml 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.