Description
Rotilabo® round bottom flask, 250 ml is a borosilicate glass laboratory flask equipped with a larger standard ground joint NS 45/40. The 250 ml capacity is suitable for mid-scale reaction mixtures, reflux and distillation work where a wider joint is preferred for charging solids, fitting bulkier adapters or matching existing NS 45/40 apparatus trains. Borosilicate construction places the vessel in the usual laboratory glassware class for chemical handling on the bench. This variant is supplied as 1 pc(s), ideal when only a single flask of this joint size is required or when replacing an individual piece in a mixed joint inventory. The flask is available from manufacturer ROTH SELECTION under the Rotilabo® designation for round flasks with ground glass joints. Unit weight is 0,190 kg. Laboratories that already operate NS 45/40 condensers, heads or multi-neck adapters can integrate this 250 ml round bottom flask without changing joint standards. Explicit labelling by volume and NS size supports correct selection beside NS 29/32 options of the same capacity.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc(s)
- Brand: Rotilabo®
- Product type: Round bottom flask
- Capacity: 250 ml
- Material: Borosilicate glass
- Ground joint: NS 45/40
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Rotilabo®-round bottom flask, 250 ml, borosilicate glass, NS 45/40, 1 unit(s)
What is this article?
Rotilabo®-round bottom flask, 250 ml, borosilicate glass, NS 45/40, 1 unit(s) is the article on this page. Luminix Health distributes Carl Roth 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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. Articles in stock ship within 2–5 business days. 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.