Description
Round-bottom flask, narrow neck, with volume marking and frosted label area in Boro 3.3 is a 50 ml laboratory vessel designed for heating, boiling and general reaction work. The flask carries a white inscription together with a clear volume marking and a frosted matt label area for sample identification at the bench. Built from borosilicate glass 3.3 and conforming to DIN ISO 1773, it provides the thermal shock resistance and chemical durability expected of standard laboratory glassware. The narrow-neck geometry supports secure stoppering, reduces evaporative loss and pairs readily with common clamps, heating mantles and rotary-evaporator joints. Its spherical body promotes even heat distribution during reflux, distillation or simple synthesis steps. This single-piece unit from manufacturer Hecht suits teaching laboratories, research groups and routine wet-chemistry workflows that require a compact, clearly marked round-bottom flask. The frosted shield accepts pencil or marker notes without adhesive labels, keeping identification permanent yet removable. Ideal wherever a standardised 50 ml narrow-neck round-bottom flask in Boro 3.3 is specified for everyday laboratory use.
This article is part of Round-bottom flasks, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Product type: Round-bottom flask, narrow neck
- Volume: 50 ml
- Material: Borosilicate glass 3.3 (Boro 3.3)
- Marking: Volume marking and frosted label area
- Inscription: White
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Questions about Flasks, boiling, round bottom, narrow neck, DIN 1773, Boro 3.3, printing white,
What is this article?
Flasks, boiling, round bottom, narrow neck, DIN 1773, Boro 3.3, printing white, is the article on this page. Luminix Health distributes Hecht 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 the EU, two to five days if 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
