Expansion of Liquid Apparatus
Product Code : LSK-POM-11199
Expansion of Liquid Apparatus (SKU LSK-POM-11199) holds five graduated glass capillary tubes of equal bore, each ending in a bulb, on a support frame above a metal trough; with the bulbs in hot water, students compare how far different liquids expand over the same temperature rise. It is used in secondary and college heat practicals. Science Lab Supplies manufactures it at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, selling to schools, colleges, tender contractors and distributors with no intermediary.
Specifications
For the five-tube expansion set, each specification sits in its own table row. In short, five graduated glass capillaries of equal bore with bulbs at the bottom are mounted on a support frame, a metal trough holds hot water around the bulbs, and all accessories, including the glass parts, are supplied.
| Specification | Value |
|---|---|
| SKU | LSK-POM-11199 |
| Capillary tubes | 5, glass |
| Graduation | Graduated tubes |
| Bore | Equal bore in all tubes |
| Bulbs | Bulb at the bottom of each tube |
| Mounting | Support frame |
| Trough | Metal trough for immersing the bulbs in hot water |
| Accessories | Complete with all accessories, including glass parts |
| Demonstrates | Different expansion of various liquids over the same temperature range |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Expansion of Liquid Apparatus
Each bulb is filled with a different liquid to the same starting mark, then hot water goes into the trough. Because the bores are equal, the different rises in the capillaries show directly which liquid expands most, making the set useful heat and thermodynamics lab equipment for schools and colleges.
- NCERT Class 11 (Thermal Properties of Matter): comparing the volume expansion of liquids, with the trough temperature read on Laboratory Thermometers.
- Secondary science: showing why containers of liquid are not filled to the brim before heating.
- B.Sc. and diploma: discussing apparent and real expansion, since the glass bulbs expand too.
- Providing hot water at a set temperature from a Water bath, 7 L, which reaches up to 100 °C.
Hot water can scald: fill the trough carefully, let the glass warm gradually, and keep flammable test liquids away from flames.
Standard Scope of Supply
Each set comprises the five graduated glass capillary tubes of equal bore with their bottom bulbs, the support frame and the metal trough for hot water, complete with all accessories including the glass parts. The test liquids, hot water source and thermometer are not included.
Packing, MOQ and Lead Time
Quotations can be issued for one apparatus or for a set per practical group. Science Lab Supplies gives the packing, delivery time and price for the requested quantity, with the packing of the glass parts described on the quotation, and a thermometer or water bath can share the quote.
Registered with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Kenya, Ghana, Ethiopia, Tanzania, Uganda and the UAE. Raise your enquiry on the contact page, keep the set in the enquiry cart while you add more items, or turn to the lab tender page for school and college tenders.
Frequently Asked Questions
How many tubes does the Expansion of Liquid Apparatus have?
It has five graduated glass capillary tubes of equal bore, each with a bulb at the bottom, so up to five liquids can be compared in a single run over the same temperature range.
Why must the capillary bores be equal?
With equal bores, the same volume increase gives the same rise in every tube, so a larger rise means that liquid has expanded more. Unequal bores would hide the true difference between the liquids.
How are the bulbs heated?
The bulbs sit in a metal trough on the support frame, and hot water poured into the trough warms all five at once, giving every liquid the same change in temperature.
Does Science Lab Supplies build the apparatus or buy it in?
It builds it. The expansion set is made at the company's manufacturing facility in Saha, Ambala, India, and buyers get their quotation from that same factory rather than from a middle trader.
Related Heat and Thermal Expansion Apparatus
These heat and gas-law items continue the study of how matter responds to temperature, from solid expansion to gas behaviour and calorimetry, and they can be quoted alongside the expansion set to equip a complete thermal properties bench.
- Linear Expansion Apparatus — heat jacket with three inlet tubes for water intake, outlet and a thermometer.
- Charles Law Apparatus, Basic — graduated limb marked 25 to 35 x 0.2 ml, ending in a 37 mm bulb.
- Charles Law Apparatus (Combined) — Jolly's air bulb with a glass mercury reservoir, supplied without mercury.
- Joule's Calorimeter — bakelite top with holes for a thermometer and stirrer; also offered without the wooden vessel.
- Thermometer (with no Mercury) — -10 to 120 °C scale on a slim glass stem.
- Glass Thermometer — non-mercury, -10 to +110 °C with 1 °C graduation.
- Kinetic Theory Apparatus — 1/8 inch spheres on a rubber diaphragm, with two 4 mm socket terminals for the motor.
Browse the full Properties of Matter range, the Heat range for calorimeters and expansion apparatus, or all physics lab equipment.
Last updated: 9 October 2026