Fractional Distillation Assembly
Product Code : LSK-CL-10249
Fractional Distillation Assembly (SKU LSK-CL-10249) is a borosilicate glass kit for separating liquids whose boiling points lie close together, built around a Vigreux fractionating column between a 250 ml round-bottom flask and a Liebig condenser. It is used in senior-secondary chemistry and in college organic chemistry practicals. Science Lab Supplies ships the assembly from Ambala, India to schools, colleges, tender contractors and distributors as part of its laboratory distillation apparatus in India.
Specifications
The fractional distillation assembly is broken down part by part in the table. In short, all glass is borosilicate with 19/26 joints held by four 19/26 joint clips; a Vigreux column sits between the 250 ml round-bottom flask and the Liebig condenser, and distillate passes a vacuum receiver adapter into a 250 ml Erlenmeyer flask.
| Specification | Value |
|---|---|
| SKU | LSK-CL-10249 |
| Material | Borosilicate glass |
| Joint size | 19/26 |
| Boiling flask | Round-bottom, 250 ml |
| Column | Vigreux |
| Condenser | Liebig |
| Receiver adapter | Vacuum receiver adapter |
| Receiving flask | Erlenmeyer, 250 ml |
| Joint clips | 4 x 19/26 |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Fractional Distillation Assembly
The assembly separates miscible liquids, such as an alcohol and water, whose boiling points are too close for simple distillation. The Vigreux column's indentations let vapour condense and re-evaporate repeatedly, so the more volatile liquid reaches the condenser first and each fraction is collected separately.
- Class 9 science (NCERT): separating two miscible liquids by fractional distillation.
- Class 11 chemistry: purification of organic compounds, watching the column-top temperature hold steady on a Thermometer (with no Mercury) as each fraction distils.
- B.Sc. organic chemistry: fractional distillation of binary liquid mixtures.
- Explaining how crude oil is separated into fractions in a refinery.
Clamp the flask and column firmly and keep the system open to the air at the receiver. Heat flammable liquids in a Water bath, 7 L rather than over an open flame, and run cooling water to the condenser through Rubber Tube (Laboratory).
Standard Scope of Supply
The assembly comprises the Liebig condenser, vacuum receiver adapter, 250 ml round-bottom boiling flask, Vigreux column, 250 ml Erlenmeyer flask and four 19/26 joint clips. Stands, clamps, tubing and a heat source are not included and can be added to the quotation.
Packing, MOQ and Lead Time
A quotation can cover a single demonstration set or one assembly per pair of students in a college lab. Science Lab Supplies quotes packing, delivery time and price for the number you request, and spare flasks or other borosilicate laboratory glassware in India can be quoted together.
Science Lab Supplies is registered as an exporter with an Importer-Exporter Code and can ship to buyers in Peru, Egypt, Iraq, Nigeria, Kenya and Ghana. Send the number of assemblies you need via the contact page or the enquiry cart; organisations purchasing under a tender can check the lab tender page first.
Frequently Asked Questions
What does the Vigreux column do?
It provides many condensation and re-evaporation stages between the flask and condenser, which enriches the vapour in the lower-boiling liquid and gives a cleaner separation than simple distillation.
What is included in the assembly?
A Liebig condenser, vacuum receiver adapter, 250 ml round-bottom flask, Vigreux column, 250 ml Erlenmeyer flask and four 19/26 joint clips; the glass parts are borosilicate.
Who supplies the Fractional Distillation Assembly?
The assembly is supplied by Science Lab Supplies in Ambala, India, which can add retort stands, clamps, spare flasks and condensers to the same quotation for a full distillation bench.
Can it be combined with other 19/26 glassware?
Yes. All joints are 19/26, so parts can be swapped with other flasks, condensers and adapters of the same joint size in your lab.
Related Distillation Glassware and Supports
Fractional distillation builds on a simple distillation set-up and needs firm support. These Chemistry Lab items provide simpler and alternative distillation sets, spare flasks and condensers, and the stand and clamp to hold everything, and all of them can share one quotation.
- Distillation Apparatus — simple distillation set with a 500 ml flask, still head and separating funnel on 19/26 joints.
- Apparatus Distillation — borosilicate glassware for preparative and analytical distillation, including a fractionating column.
- Liebig Condenser 200mm — 200 mm jacket length, with the inner tube integral with the body.
- Straight Cooler (Condenser) — Liebig-type glass condenser, 480 mm long.
- Round Bottom Jars (Spherical Balloons) 250ml — 250 ml round-bottom glass flask with a long mouth.
- Conical Pot (Erlenmeyer) 250ml — graduated 250 ml glass Erlenmeyer with a narrow mouth.
- Laboratory Retort Stand — weighted base and vertical rod for securing and suspending apparatus.
- Four Prong Laboratory Clamp — dual-adjustable clamp for large cylindrical vessels, with a stainless steel extension rod.
Browse the full Chemistry Lab range, the Laboratory Flasks range, or all school lab equipment.
Last updated: 9 October 2026
