Description
Two-neck round-bottom flask in heat-resistant borosilicate glass provides a 500 ml working volume with centre neck NS 24/29 and angled side arm NS 19/26 for larger-scale distillation, reflux and multi-component reactions. Built to DIN 12394 and DIN 12392, the flask incorporates a thick wall, heavy base and reinforced rim that help prevent breakage during cleaning, assembly and everyday laboratory transport. Finely ground NS joints with smooth internal surfaces guarantee a reliable, leak-tight seal when glassware accessories are attached. White enamel markings stay legible under typical lab lighting and solvent exposure. The side neck is set at approximately 20° (angled/parallel layout), giving clear access for reagents, sensors or gas lines without interfering with the centre joint. Offered as one piece from manufacturer ISOLAB Laborgeräte, this robust multi-neck flask supports preparative organic chemistry, solvent recovery and pilot-scale work where durable standard-joint glassware is essential.
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
- Capacity: 500 ml
- Centre neck: NS 24/29
- Side arm: NS 19/26, angled approx. 20°
- EAN: 4250362624840
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Questions about flask - round bottom - two neck - angled side arm - center neck : NS 24/29 -
What is this article?
flask - round bottom - two neck - angled side arm - center neck : NS 24/29 - is the article on this page. Luminix Health distributes ISOLAB 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?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.