Description
Round-bottom flask 500 ml KS 35/20 coated is a single-neck laboratory flask fitted with a spherical ground joint KS 35/20 for distillation, reaction and receiving applications. Fabricated from clear borosilicate glass 3.3, it delivers strong chemical resistance and thermal performance suitable for demanding laboratory environments. The vessel offers a nominal volume of 0,5 l, an outer diameter of 105 mm and a height of 170 mm. Its plastic coating improves impact resistance and provides an extra safety barrier by helping to contain liquids if the glass is damaged. The spherical joint enables secure coupling within standard ground-joint apparatus, while the transparent body allows continuous visual monitoring of contents. Available in packs of 10 pieces from manufacturer Witeg, this coated round-bottom flask is well matched to preparative work, teaching labs and routine synthesis where both mechanical protection and optical clarity are required. The single-neck layout keeps handling straightforward across common laboratory glassware setups.
This article belongs on Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 0,5 l
- Joint size: KS 35/20
- Outer diameter: 105 mm
- Height: 170 mm
- EAN: 4046681011146
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Questions about Round bottom flask 500 ml S 35/20 plastic coated
What is this article?
Round bottom flask 500 ml S 35/20 plastic coated is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.