Description
Round-bottom flask, PFA, NS 29/32, 250 ml is a single-neck laboratory flask made from perfluoroalkoxy alkane (PFA) with a nominal volume of 0,25 l. The ground joint size NS 29/32 provides a standard conical connection for condensers, adapters or receivers in distillation, collection and general reaction setups. One neck keeps the geometry simple for classic round-bottom workflows. Gross weight is 0,13 kg per piece, and the flask is supplied as a single unit from manufacturer Vitlab. PFA offers broad chemical resistance and a smooth, non-stick surface valued when working with aggressive media or when residue-free cleaning is important. Suitable categories include round-bottom flasks, ground-joint flasks, distillation flasks and receiving flasks. Origin is Germany. The combination of 250 ml working volume, NS 29/32 joint and PFA construction makes this flask a practical choice for preparative and analytical laboratories that require inert polymer glassware instead of borosilicate glass for selected solvent systems and temperature ranges typical of PFA labware.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Product type: Round-bottom flask
- Material: Perfluoroalkoxy alkane (PFA)
- Nominal volume: 250 ml (0,25 l)
- Ground joint: NS 29/32
- Number of necks: 1
- Technical Information Sheet:
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Questions about Round bottom flask, PFA, 250 ml
What is this article?
Round bottom flask, PFA, 250 ml is the article on this page. Luminix Health distributes Vitlab 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.