Glass Burette 50ml

Glass Burette 50 ml – Precision Titration Laboratory Glassware

The Glass Burette is laboratory glassware designed for accurate and controlled delivery of liquids during titration and volumetric analysis. Supplied by Elmo Agencies, a scientific manufacturer in Ambala, it is suitable for school, college, teaching, research, and analytical chemistry laboratories.

A glass burette is made from borosilicate 3.3 glass and features a clear graduated scale for reading the volume of liquid delivered during a titration. Its 50 ml capacity makes it suitable for routine volumetric analysis and chemistry practicals.

The burette allows a titrant to be added gradually, including drop-by-drop near the endpoint, helping users determine the volume required for a chemical reaction.

Construction & Specifications

Borosilicate 3.3 Glass

The burette is made from borosilicate 3.3 glass, which is widely used for laboratory glassware because of its good chemical resistance, low thermal expansion, and resistance to thermal shock compared with ordinary soda-lime glass.

The transparent body also allows the liquid level and meniscus to be clearly observed.

What Is a Burette Used For?

A burette is primarily used in titration, where a solution of known concentration is gradually added to another solution until a defined endpoint is reached.

The volume delivered is determined by comparing the initial and final burette readings. This measurement can then be used in quantitative chemical calculations.

Key Features

• 50 ml capacity
• 0.10 ml graduations
• Borosilicate 3.3 glass body
• Clear blue graduation markings
• Suitable for controlled liquid delivery
• Designed for routine titration work
• Suitable for chemistry teaching and analytical laboratories

Applications

• Acid-base titrations
• Redox titrations
• Complexometric titrations
• Volumetric analysis
• Standardization of solutions
• Quantitative chemical analysis
• School and college chemistry practicals
• Research and analytical laboratory work

How to Use a Glass Burette

1. Clean and rinse the burette according to the laboratory procedure.
2. Fill it with the required titrant.
3. Ensure the delivery tip is free of air bubbles.
4. Record the initial liquid reading.
5. Release the titrant gradually into the receiving solution.
6. Add the titrant drop by drop as the endpoint approaches.
7. Record the final reading.
8. Calculate the volume delivered from the difference between the readings.

Accuracy & Reading

The burette has 0.10 ml graduations. For reliable readings, the liquid meniscus should be viewed at eye level to reduce parallax error.

The stated graduation interval should not automatically be interpreted as the same thing as the overall measurement uncertainty or accuracy class of the burette; those depend on the applicable calibration standard and product specification.

Important Precautions

• Check the glass tube for cracks or chips before use.
• Ensure the stopcock operates smoothly and does not leak.
• Remove air bubbles from the delivery tip before recording the initial reading.
• Read the meniscus at eye level.
• Keep the graduation markings clean and visible.
• Confirm chemical compatibility before using aggressive reagents.

Conclusion

The Glass Burette 50 ml by Elmo Agencies is a practical instrument for controlled liquid delivery, titration, and volumetric analysis. Its borosilicate 3.3 glass construction, 50 ml capacity, and 0.10 ml graduations make it suitable for chemistry practicals, educational laboratories, analytical work, and routine quantitative experiments.