Description
DURAN® pear-shaped evaporator flask blank with a nominal volume of 1000 ml is a borosilicate glass 3.3 blank designed for subsequent conversion into ground-joint flasks used on rotary evaporators. Uniform wall thickness and good rotational symmetry ensure stable spinning behaviour and homogeneous heating after a standard ground joint socket has been added. The pear shape maximises the evaporating surface, supporting efficient solvent removal once the blank has been finished. Intended for further processing as a Schliffkolben, the completed flask serves for the evaporation of solvents under vacuum in preparative chemistry. Offered as one piece with a net weight of 0,24 kg, the article from manufacturer Duran/DWK Life Sciences gives workshops a reliable blank of defined volume and material quality. Borosilicate glass 3.3 provides the chemical resistance and thermal performance required for everyday laboratory use, allowing laboratories to produce custom rotary-evaporator flasks that match specific process volumes while retaining consistent DURAN® glass properties.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Storage temperature: Standard
- Nominal volume: 1 l
- Material: Borosilicate glass 3.3
- Shape: Pear-shaped
- EAN: 4032051001138
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Questions about DURAN® Blank for Evaporating Flask, pear-shape
What is this article?
DURAN® Blank for Evaporating Flask, pear-shape is the article on this page. Luminix Health distributes DWK Life Sciences 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.
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.