Fractionating Columns Vigrex
Product Code : EL-CC-10211
Lab Glassware Manufacturer manufactures and exports Fractionating Columns, Vigrex from its Ambala, Haryana facility, supplying school, college and research laboratories in India as well as export buyers that have recently included institutions in Austria, Switzerland and Liechtenstein — part of a wider base of enquiries from across Alpine Europe.
Quick answer: A Vigrex-type (Vigreux) fractionating column has rows of inward-pointing indentations along its length that increase surface area and encourage repeated vapour–liquid contact, improving separation efficiency during distillation compared with a plain column of the same length. It terminates in matched ground-glass socket and cone joints and is available in four length/joint-size combinations.
| Effective length | Socket size | Cone size |
|---|---|---|
| 360mm | 24/29 | 24/29 |
| 600mm | 24/29 | 24/29 |
| 360mm | 29/32 | 29/32 |
| 750mm | 34/35 | 34/35 |
Choosing Length and Joint Size
Longer effective lengths generally give more theoretical plates and better separation for closely-boiling mixtures, at the cost of a taller apparatus and slower throughput; the 750mm option with 34/35 joints suits more demanding fractionation, while the 360mm options suit routine or space-constrained setups. Joint size should be matched to the rest of the distillation train (flask, still head and receiver) so the column connects directly without adapters.
Frequently Asked Questions
What does the Vigrex/Vigreux indentation pattern do?
The rows of indentations increase the internal surface area and promote repeated vapour-liquid contact along the column, which improves separation efficiency compared with a plain, unindented column of the same length.
Which length should I choose?
Longer columns (such as the 750mm option) generally provide better separation for mixtures with close boiling points, while shorter columns suit routine distillations or where bench height is limited.
How do I make sure the joints match my existing glassware?
Confirm the socket and cone size (24/29, 29/32 or 34/35) against the flask, still head and receiver already in use, and specify the exact size when placing an enquiry.
Related Products
See the full range on the Chromatography Columns page, including other fractionating column types such as the Dufton and plain fractionating columns.
Request a Quote
Ready to order Fractionating Columns, Vigrex for your laboratory or export order? Contact Us for a quotation, or visit the Tenders page for bulk and institutional procurement.
Last updated: September 2026.