Description
Round-bottom flask 500 ml NS 45/40 Economy is a single-neck laboratory flask intended for distillation, reaction and collection applications. Manufactured from clear borosilicate glass 3.3, it delivers the thermal and chemical resistance expected in routine laboratory work. Principal dimensions comprise a nominal volume of 500 ml, an outer diameter of 105 mm and a height of 170 mm. The centre neck is fitted with a standard ground joint NS 45/40 for straightforward connection to condensers, adapters and complementary ground-joint glassware. Available in packs of 10 pieces from manufacturer Witeg, this Economy variant is well suited for use as a distillation flask, receiving flask or general reaction vessel. The clear-glass construction permits easy visual monitoring of the contents throughout heating, mixing or condensation steps. Standardised NS 45/40 geometry ensures reliable integration into existing apparatus trains in chemical, pharmaceutical and research laboratories. The flask forms part of the familiar families of round-bottom flasks, ground-joint flasks, distillation flasks and receiving flasks.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 500 ml
- Joint size: NS 45/40
- Outer diameter: 105 mm
- Height: 170 mm
- Material: Borosilicate glass 3.3
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Questions about Round bottom flask 500 ml ST 45/40 Economy
What is this article?
Round bottom flask 500 ml ST 45/40 Economy is the article on this page. Luminix Health distributes Witeg 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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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.