Description
Round-bottom flask 5 ml NS 19/26 Economy is a clear glass laboratory vessel manufactured from borosilicate glass 3.3. Featuring a nominal capacity of 5 ml and a standard ground joint NS 19/26, it is designed for small-scale chemical reactions, distillations and the collection of distillates in research, quality-control and teaching laboratories. The spherical bottom promotes uniform heat distribution and efficient mixing when the flask is used with heating mantles, oil baths or magnetic stirrers. This Economy series flask from manufacturer Witeg provides a dependable choice for everyday laboratory tasks that require the thermal and chemical resistance of borosilicate glass 3.3. The NS 19/26 joint ensures broad compatibility with condensers, dropping funnels, adapters and other ground-joint components commonly employed in organic synthesis. Ideal as a reaction flask, distillation flask or receiving flask, it supports a variety of analytical and preparative workflows. The item is supplied as one piece for convenient single-unit procurement in routine laboratory glassware sets.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Volume: 5 ml
- Joint size: NS 19/26
- Material: borosilicate glass 3.3
- Glass type: clear glass
- Series: Economy
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Round bottom flask 5 ml ST 19/26 Economy
What is this article?
Round bottom flask 5 ml ST 19/26 Economy is the article on this page. Luminix Health distributes Witeg 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?
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. Delivery across Europe, two to five days when in stock. 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.