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 supplies this laboratory distillation apparatus in India from Ambala to schools, colleges, tender contractors and distributors.
Specifications
All components are borosilicate glass with 19/26 ground joints, secured by four 19/26 joint clips. The Vigreux column's indentations give vapour a large surface on which to condense and re-evaporate repeatedly, so the more volatile liquid reaches the condenser first. Distillate passes through a vacuum receiver adapter into a 250 ml Erlenmeyer flask.
| Parameter | Value |
|---|---|
| SKU | LSK-CL-10249 |
| Material | Borosilicate glass |
| Joint size | 19/26 |
| Boiling flask | Round-bottom, 250 ml |
| Column | Vigreux |
| Condenser | Liebig |
| Receiver | Vacuum receiver adapter; Erlenmeyer flask 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. Students heat the mixture, watch the temperature at the top of the column hold steady as each fraction distils, and collect the fractions separately in the Erlenmeyer flask.
- Class 9 science (NCERT): separating two miscible liquids by fractional distillation.
- Class 11 chemistry: purification of organic compounds and the principle of fractionation.
- 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, keep the system open to the air at the receiver, and heat flammable liquids with an electric mantle or water bath rather than an open flame.
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 listed and can be added to the quotation.
Packing, MOQ and Lead Time
Colleges usually order one assembly per pair of students, while schools may need only a demonstration set. 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. Get in touch via the contact page, collect products in the enquiry cart, or read the lab tender page for tender orders.
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?
Science Lab Supplies of Ambala, India supplies the assembly and can quote it with retort stands, spare flasks and condensers 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 Equipment
Fractional distillation builds on a simple distillation set-up and needs sturdy support. These four Chemistry Lab items provide the simpler set, spare glass and the stand, and can share one quotation.
- Distillation Apparatus — simple distillation set with 500 ml flask.
- Liebig Condenser 200mm — a spare condenser.
- Round-bottom Flask — extra boiling flasks.
- Laboratory Retort Stand — holds the flask and column upright.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
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