The glass is made from a combination of silica and boron trioxide, which gives it a high resistance to thermal shock and chemical penetration. The purpose of beakers like these can range from preparing solutions and decanting liquids to performing simple reactions.
A standard beaker can be used in just about any chemical experiment. Beakers differ from flasks because they have straight sides, not gradual.
The only exception is the Phillips beaker, which has slightly conical sides. Beakers with a spout cannot accommodate a lid. But they can be covered by a watch glass to prevent content loss or contamination. A beaker is a cylindrical container used to store, mix and heat liquids in laboratories. Most are made of glass, but other non-corrosive materials, such as metal and heat-resistant plastic, are also used.
Beakers usually have a flat bottoms and a lip around the top. They range in size from one millimeter to multi-liter. Bunsen burners, heat plates, stirrers, safety tongs, safety goggles, gloves and lab coats are tools commonly used when working with beakers.
Pour liquid into the beaker; pour slowly to avoid splashing the liquid. Use the measuring lines on the beaker to approximate the volume of liquid in the beaker. Robert C. Young began writing professionally in as a copywriter for an advertising specialty company. They have graduations, but they are approximate measurements. Therefore, glass beakers can be heated and cooled as needed without much concern for distortion of calibration.
All in all, beakers are a versatile container that is a laboratory staple for good reason. By description — a cylinder with a flat bottom that contains liquid and has graduations — a graduated cylinder might sound quite similar to a beaker.
The differences come down to the usage and accuracy. Graduated cylinders are designed for accurate measurements of liquids with a much smaller error than beakers. They are thinner than a beaker, have many more graduation marks, and are designed to be within 0. Graduated cylinders can be used for all sorts of applications from wastewater analysis to medical research. Therefore, this more precise relative of the beaker is just as critical to almost every laboratory.
Providing analytical measurement of phase separation of liquids within the container i. Both of these basic glassware items have a place in almost every laboratory. The trick is deciding which one is appropriate for your specific application. Use a 10mL graduated cylinder for accuracy. Need to buffer an already-made solution to pH 7.
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