Description
Three-neck round-bottom flask with parallel necks, standard ground joint, LBG 3.3, centre NS 29/32 is a multi-neck laboratory flask for synthesis, distillation and receiving duties at the one-litre scale. Made from borosilicate glass 3.3, the vessel provides the thermal and chemical resistance expected in organic chemistry, process development and preparative work. Nominal volume is 1 l, with three necks in a parallel arrangement and a centre joint size of NS 29/32 for compatibility with common condensers, adapters and stirring equipment. Standard ground joints enable reliable, interchangeable connections across modular glassware trains. Net weight is 0,353 kg, giving a robust yet manageable piece for bench and stand-mounted assemblies. Available as one piece from manufacturer Labbox in the LBG product line, the flask supports reflux setups, multi-reagent addition and collection tasks where parallel neck geometry simplifies alignment of side apparatus. It fits categories of round-bottom, ground-joint, distillation and receiving flasks used throughout research, teaching and industrial laboratories that standardise on NS joint systems.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Nominal volume: 1 l
- Number of necks: 3
- Joint size: NS 29/32
- EAN: 8434868006300
- GTIN: 08434868006300
- Technical Information Sheet:
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Questions about Flask, round bottom with three necks (parallel), LBG 3.3, cent. 29/32, side 29/3
What is this article?
Flask, round bottom with three necks (parallel), LBG 3.3, cent. 29/32, side 29/3 is the article on this page. Luminix Health distributes Labbox 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.