Bomex Glass Beakers (2024)

FAQs

What is Bomex glassware? ›

Bomex Glass Beakers. Available in 50ml, 100ml, 250ml, 600ml and 1000ml glass beakers. Made of Borosilicate glass, which has a low coefficient of thermal expansion, making it resistant to thermal shocks.

In general, glass beakers have greater chemical and temperature tolerances, and are easier to sterilize. Plastic beakers are safer (little or no breakage), lighter, easier to store, and less costly. Metal beakers are safe, but are opaque and tend to be costly.

Short, squat beakers are referred to as Griffin beakers, differentiating them from taller, thinner beakers known as Berzelius beakers. The Griffin beaker's name refers to John Joseph Griffin (1802–1877), an English chemistry enthusiast.

Fragility: Glass beakers can break easily when dropped or subjected to substantial impacts, posing a risk of injury and chemical spills.

Well, Bomex is still borosilicate glass, so it can handle some heat, but I would not use it for heating over, say 150, and never let it be exposed to thermal stress.

If there is no mark on the glass, there may be other signs that can help you work out how old it is. It may have mould marks, show the pontil mark of blown glass or have identifying characters within the glass, such as bubbles. All of these can help you find out more about your glassware with a bit of research.

The most accurate beakers are going to be beakers that have measuring lines to measure the volume of the liquid in the beaker. Graduated cylinders or beakers are known to produce the most accurate results.

Glass Beakers: Handle with care to avoid breakage. Use heat-resistant gloves when dealing with high temperatures. Plastic Beakers: Ideal for educational settings where safety is a priority. Remember, they are not suitable for flammable substances or high-heat applications.

Beaker Types

Low-Form Plastic: Low-form plastic beakers may have handles for easy pouring. Due to their wide, flat bottom, glass beakers are ideal for heating on a hot plate. Tall Form: Tall form beakers, also called Berzelius beakers, are twice as tall as they are wide.

Flasks are normally the site of chemical reactions, for the reaction can take place in the large vessel and have low risk of spilling due to the long, narrow neck of the flask. Furthermore, flasks have the ability to be capped or corked, therefore solutions can be held for long periods of time without risk of spilling.

Why is a crucible used instead of a glass beaker? ›

A crucible is like a flask that you use to heat substances, but the difference is that a crucible can withstand very high temperatures than a glass flask or beaker. That is why a crucible is generally used to melt heavy solid things like metals. They are generally made of porcelain or clay or alumina.

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 0.5-1% error.

Pouring boiling water into a glass is highly likely to shatter it because the hot water contacts only a few part of the glass first whereas the other parts of the glass (such as the outside of the cup) remain cooler.

“Lab-grade glass beakers can withstand extremely high temperatures; they're really high quality. You can use them to measure ingredients, you can put them in the microwave to heat things up, and you can easily pour from them,” Dr.

The main distinction between porcelain and borosilicate glass is a slight difference in heat retention and a big one in the thickness of the lip of the cup that you drink from. (This is a byproduct of porosity that affects manufacturing.)

A pontil mark is a variable size and type of scar or roughage left on the base of a bottle by a pontil rod. A typical pontil rod (aka ponty, punty or punte) was a long (4-6 feet) rod which was securely attached to the base of the just blown hot bottle (Trowbridge 1870).

Dema Glass became one of the leading glassware suppliers in the country, producing up to 100 million glasses a year by 1985.