Separatory funnel 100ml NS 19/26

Separating funnel 100 ml NS 19/26 is a cylindrical, ungraduated laboratory funnel engineered for efficient liquid-liquid extraction and phase separation at intermediate volumes. Produced from borosilicate glass 3.3, it incorporates an NS-PTFE stopcock with a 2,5 mm bore together with an NS-PE stopper on the NS 19/26 ground joint. This arrangement combines chemical durability with smooth, controllable flow for everyday organic and analytical chemistry tasks. The item is available from manufacturer Witeg in packs of two pieces, each with a net weight of 0,1 kg, offering a practical balance between capacity and handling ease. The ungraduated cylindrical form gives a clear view of the meniscus and phase interface, enabling accurate separation of immiscible layers. The PTFE stopcock resists sticking after contact with solvents and maintains a reliable seal across multiple uses. Suitable for synthetic work-ups, natural-product isolation, environmental sample clean-up and teaching laboratories, the 100 ml size accommodates typical intermediate-scale extractions and washing steps. Compatibility with standard NS 19/26 joints allows seamless integration into existing ground-joint setups, clamps and apparatus trains used throughout research and quality-control environments.

This article is part of Separating funnels, in Funnels.

Key features

• Pack size: 2 pc(s)
• Capacity: 100 ml
• Material: Borosilicate glass 3.3
• Design: Cylindrical, ungraduated
• Stopcock: NS-PTFE, 2,5 mm bore
• Stopper: NS-PE stopper