A glass beaker is an essential piece of laboratory equipment designed for precise measurements, mixing, and heating of liquids. Made from borosilicate glass, it offers superior durability and thermal resistance compared to standard glass.
Key features and specifications of a typical glass beaker include:
Material: Borosilicate glass with a thermal expansion coefficient of approximately 3.3 x 10⁻⁶/°C, ensuring high thermal shock and chemical corrosion resistance.Capacity: Available in various sizes, ranging from 50 mL to 2000 mL, catering to diverse laboratory needs.
Graduations: Marked, graduated scale in milliliters (mL) with an accuracy of ±5%, providing a precise measurement for laboratory tasks.Heat Resistance: Withstands temperatures up to 400°C (752°F), suitable for use in open flames, hot plates, and autoclaves.
Mechanical Strength: Borosilicate glass has a tensile strength of approximately 70 MPa and a compressive strength of around 1,200 MPa, allowing the beaker to endure routine lab usage.Shape and Design: Cylindrical with a flat bottom for stability and a spout for easy pouring. The design includes a reinforced rim to reduce the risk of chipping and breakage.
Chemical Compatibility: Highly resistant to acids, alkalis, and organic solvents, making it ideal for a wide range of chemical processes and reactions.Transparency: Offers excellent visibility of contents, ensuring accurate monitoring and control during experiments.
Glass beakers are indispensable in scientific research, educational laboratories, and industrial applications, where precision, durability, and resistance to extreme conditions are crucial. Their versatile nature allows them to be used in various procedures, including mixing solutions, titration, and sample storage.