Description
BOLA two-neck ground joint round-bottom flask, 250 ml, with one centre neck NS 29/32 and one side neck NS 29/32, is a transparent, pore-free PFA vessel for multi-port laboratory setups. Fabricated from perfluoroalkoxy alkane (PFA), it offers a central middle joint NS 29/32 plus a lateral ground joint of the same size for simultaneous connection of condensers, addition funnels, sensors, or inert-gas lines. Nominal volume is 250 ml (0,25 l), overall height 149 mm, sphere diameter 88 mm, and net weight 0,141 kg. The round-bottom geometry supports even heating and stirring in distillation, reaction, and collection work. Supplied as a single piece from manufacturer Bohlender, this two-neck flask is intended for synthetic and analytical laboratories that need fluoropolymer chemical resistance together with standardised NS joints. Transparent PFA walls aid visual monitoring while remaining compatible with common jointed glassware and accessories.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 250 ml
- Number of necks: 2
- Centre neck: NS 29/32
- Side neck: NS 29/32
- Material: PFA (perfluoroalkoxy alkane)
- Technical Information Sheet:
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Questions about BOLA Round Bottom Flasks with Two Ground Joint Necks, 250 ml 1 Center socket siz
What is this article?
BOLA Round Bottom Flasks with Two Ground Joint Necks, 250 ml 1 Center socket siz is the article on this page. Luminix Health distributes Bohlender 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.