Borosilicate Glass Burette 50ml

Product Code : SCL-LG-12006

Borosilicate Glass Burette 50ml (SKU SCL-LG-12006) is a Class A titration burette with 0.1 ml subdivisions and a straight-bore PTFE stopcock plug that turns without grease. Chemistry teachers, university analysts and quality-control staff use it to deliver titrant accurately in acid-base and redox work. Science Lab Supplies dispatches it from Ambala, India to colleges, schools, laboratories, tender contractors and distributors.

Specifications

This burette has a heavy-walled borosilicate 3.3 barrel with a uniform bore and enamel graduations fused onto the glass. A handle on the PTFE plug opens and shuts the straight bore; aligning it across the barrel closes the tap, and a locking nut holds the plug in place. The tip is shaped for even drops.

Applications and Experiments for the 50 ml Glass Burette

A 50 ml burette is the standard instrument for volumetric analysis: the titrant is run into a conical flask until the indicator changes, and the volume used is read from the scale. Class A tolerance and 0.1 ml divisions make this one suitable for graded practicals and routine analytical work.

• CBSE/NCERT Class 11–12 chemistry: titrations of oxalic acid and Mohr's salt against potassium permanganate.
• B.Sc. chemistry: acid-base, redox and precipitation titrations.
• Pharmacy and food-technology labs: standardising solutions and assay titrations.
• Quality-control laboratories: routine titrimetric testing of materials.

Standard Scope of Supply

The listing describes each set as two 50 ml borosilicate burette barrels, two interchangeable straight-bore PTFE stopcock plugs and an operation guide. A burette stand, clamp, funnel and titrant are not supplied with the set and may be quoted alongside.

Packing, MOQ and Lead Time

Quotes are available for a single set or for the number of sets needed to equip a full titration class. You will receive packing, delivery time and price for your quantity in writing, and clamps, funnels and conical flasks can be combined with the burettes.

Registered as an exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Sri Lanka, Vietnam, Malaysia, Peru, Egypt and Iraq. Start by messaging us on the contact page, collect items in the enquiry cart, or open the lab tender page for tender-based buying.

Frequently Asked Questions

Does the PTFE stopcock need grease?
No. The straight-bore PTFE plug turns smoothly without grease, so the titrant is not contaminated. If the handle resists, do not force it; adjust the locking nut instead.

How is this burette filled and zeroed?
Clamp it vertically, close the tap, fill through a small funnel to just above zero, run a little liquid into a waste beaker to clear air from the tip, then set the meniscus on the zero line at eye level.

How should it be stored?
Rinse the bore with distilled water after each titration, remove the PTFE plug for long storage so it does not deform, and keep the dried burette upright or inverted in a rack.

Who supplies the Borosilicate Glass Burette 50ml?
Science Lab Supplies, based in Ambala, Haryana, India, supplies this burette and handles enquiries from schools, colleges, laboratories and distributors directly.

Related Burettes and Titration Glassware

To complete a titration place, the burette needs a clamp, a filling funnel and a receiving flask; some labs also keep a screw-valve burette for finer control. These four items from our ranges cover each need and can be quoted with the burettes.

• Burette Clamp Aluminium — holds the burette vertical on a stand.
• Borosilicate Filter Funnel — for filling the burette.
• Borosilicate Conical Flask — receives the titrant during the titration.
• Borosilicate Burette with Rota Stopcock — 50 ml burette with a screw-type PTFE valve.

Browse the full Lab Glassware range or all school lab equipment.

Last updated: 25 September 2026