Overview
The 500ml beaker is a fundamental piece of laboratory equipment, designed for measuring, mixing, and heating liquids. Its cylindrical shape with a spout allows for easy pouring, while graduated markings provide approximate volume measurements. Beakers are typically made from borosilicate glass, known for its thermal and chemical resistance, though plastic variants are also available for specific applications. In laboratories, the 500ml beaker is widely used due to its versatility. It serves as a container for reactions, a vessel for heating solutions, and a tool for simple measurements. Its standardized design ensures compatibility with other lab equipment, making it indispensable in both academic and industrial settings.
Physical and Chemical Properties
Borosilicate glass beakers, the most common type, exhibit high thermal stability, withstanding temperatures up to 400°C without cracking. Their low coefficient of thermal expansion makes them resistant to thermal shock. Chemically, they are inert to most acids, bases, and organic solvents, ensuring compatibility with a wide range of substances. Plastic beakers, often made from polypropylene or polymethylpentene, are lightweight and shatterproof but have lower heat resistance. They are ideal for applications where breakage is a concern or when working with hydrofluoric acid, which reacts with glass. The transparency of glass beakers allows for easy visual monitoring of reactions, while plastic versions may be translucent or opaque.
Main Applications
The 500ml beaker is utilized across various scientific disciplines. In chemistry labs, it is used for preparing solutions, conducting reactions, and heating liquids. Biology labs employ it for culturing microorganisms or mixing buffers. Industrial applications include quality control testing and small-scale production processes. Educational institutions rely on 500ml beakers for teaching basic laboratory techniques. Their durability and reusability make them cost-effective for repetitive use. In research settings, they are often employed in preliminary experiments or as temporary storage vessels during complex procedures.
Safety and Storage
When using a 500ml beaker, safety precautions are essential. Glass beakers should be inspected for cracks or chips before use to prevent breakage. Always use heat-resistant gloves or tongs when handling hot beakers, and avoid sudden temperature changes to prevent thermal shock. Store beakers in a clean, dry environment, preferably on sturdy shelves or in cabinets to prevent tipping. Stack them carefully to avoid chipping, and keep them away from heavy equipment that could cause impact damage. Plastic beakers should be stored away from direct sunlight to prevent degradation over time.
B2B Procurement Guide
When procuring 500ml beakers in bulk, consider the material (glass or plastic) based on your lab's needs. Glass beakers are preferred for high-temperature applications, while plastic is suitable for safety-sensitive environments. Verify that the beakers meet industry standards such as ASTM E960 or ISO 4797. Evaluate suppliers based on product consistency, lead times, and certifications. Request samples to check for uniformity in graduation markings and overall quality. For cost efficiency, explore bulk discounts or long-term contracts with reliable manufacturers. Ensure the supplier provides proper packaging to prevent damage during transit.
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