Description
Round-bottom flask narrow neck 1000 ml DURAN® is a single-neck laboratory flask made from borosilicate glass 3.3 for general chemical work, distillation setups and collection duties. The vessel offers a nominal volume of 1 l, a narrow neck with beaded rim, a neck outer diameter of 42 mm, a body outer diameter of 131 mm and an overall height of 200 mm. DURAN® glass provides the thermal and chemical resistance expected of borosilicate 3.3 in routine heating, cooling and solvent handling. The enghals design supports secure stoppering and connection to standard laboratory apparatus while the round bottom promotes even heat distribution. Supplied from manufacturer Witeg, this flask suits preparative chemistry, reflux and receiving applications where a robust 1000 ml round-bottom form is required. The unit is offered in packs of 10 pc(s), giving laboratories a practical stock quantity for teaching labs, research benches and production support. Net weight is 0,302 kg per flask. Categories include round-bottom flasks, ground-joint flasks, distillation flasks and receiving flasks, reflecting its versatile role in everyday glassware assemblies.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 1 l
- Material: Borosilicate glass 3.3
- Neck type: Narrow neck
- Neck outer diameter: 42 mm
- Body outer diameter: 131 mm
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Flasks, round bottom, narrow neck, 1000
What is this article?
Flasks, round bottom, narrow neck, 1000 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. 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.