Description
Round-bottom centrifuge tube offering a nominal volume of 75 ml is engineered for dependable performance in everyday laboratory centrifugation. It measures 44 mm in outer diameter and 100 mm in height and is produced from borosilicate glass 3.3, a material valued for chemical inertness and resistance to thermal shock. The GL 32 thread and accompanying screw cap deliver a secure closure that minimises the risk of leakage under centrifugal force or during transport. Its rounded bottom aids efficient sedimentation and simplifies resuspension of pellets, supporting applications in molecular biology, biochemistry and clinical sample preparation. Supplied as one piece from manufacturer Rettberg, the tube is ready for integration into standard workflows that require robust glass vessels of this size. The defined dimensions allow straightforward matching with appropriate centrifuge rotors. Optical clarity of the borosilicate glass 3.3 permits easy visual checks of sample status, while the overall construction withstands typical laboratory cleaning and sterilisation cycles. This 75 ml centrifuge tube provides a practical, reliable option for medium-volume separations.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1 pc
- Nominal volume: 75 ml
- Outer diameter: 44 mm
- Height: 100 mm
- Thread: GL 32
- Material: Borosilicate glass 3.3
- Technical Information Sheet:
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Questions about Centrifuge tube, round bottom, 75 ml, o-Ø 44 mm, height 100 mm,
What is this article?
Centrifuge tube, round bottom, 75 ml, o-Ø 44 mm, height 100 mm, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Ballons à fond rond, inside Béchers & fioles, in Matériel de laboratoire.
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 Béchers & fioles. The sub-category is Ballons à fond rond. The catalogue is Matériel de laboratoire.
Shelves beside this one are Béchers, Fioles Erlenmeyer, Récipients de réaction & récipients à double enveloppe, Fioles à fond plat, Fioles (autres) and Accessoires pour béchers & fioles.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.