Separatory funnel Cylinder 500ml ST 29/32

Cylindrical separating funnel 500 ml NS 29/32 is a graduated laboratory vessel intended for liquid-liquid extraction, phase separation and solvent partitioning procedures. Fabricated from high-quality borosilicate glass 3.3, the funnel provides outstanding resistance to chemical attack and thermal shock, making it suitable for a wide range of organic and aqueous media. The cylindrical body is graduated to facilitate accurate volume assessment during transfers. A solid ground-joint stopcock plug with a 2,5 mm bore allows controlled drainage of the lower phase, while the matching NS polyethylene stopper seals the top opening securely at the NS 29/32 standard joint. This configuration ensures leak-free operation and easy interchangeability with other NS glassware. Offered by manufacturer Witeg, the item is supplied in packs of two pieces and is well suited to teaching laboratories, research institutes and industrial quality-control environments. Its robust design supports repeated cleaning cycles without loss of dimensional integrity. Clear graduation marks and the cylindrical geometry promote straightforward observation of phase boundaries, improving reproducibility in extraction protocols. Ideal for routine work with immiscible solvents, the 500 ml capacity combines practical working volume with reliable joint technology for everyday laboratory separations.

This article is part of Separating funnels, in Funnels.

Key features

• Pack size: 2 pc(s)
• Capacity: 500 ml
• Material: Borosilicate glass 3.3
• Shape: Cylindrical, graduated
• Joint size: NS 29/32
• Stopcock bore: 2,5 mm