What is Pyrex in chemistry?
Pyrex, (trademark), a type of glass and glassware that is resistant to heat, chemicals, and electricity. It is used to make chemical apparatus, industrial equipment, including piping and thermometers, and ovenware. It is sometimes referred to by the generic term, borosilicate glass.
Why is chemical glassware made of Pyrex?
In a glass composition, this extra strength gives it thermal and chemical resistance that makes it useful for cooking applications, thermometers, and laboratory equipment. Pyrex also has a low alkali content that gives it high corrosion resistance.
What glassware is used in chemistry?
Common types of glassware include beakers, flasks, pipettes, and test tubes. Each of these containers has its own unique form and purpose.
Why is Pyrex glass used in labs?
Pyrex® is borosilicate glass which differs from other glass types as it possesses unique properties of high resistance to chemical exposure, thermal expansion and thermal shock. This has advantages in laboratory uses, a key one being where glassware is directly heated, in beakers, test tubes or flasks.
Is Pyrex the same as borosilicate glass?
In 1915, Corning Glass Works brought it to the U.S. market under the name Pyrex. Since then, borosilicate glass and Pyrex have been used interchangeably in the English-speaking language.
How can I tell if my Pyrex is borosilicate?
Eyeball It. If you have a dish at home that you want to test you can also try just looking at the hue. If you look at the edge of a dish and it is made out of soda-lime glass it will be a blueish-green hue. If the glass is Borosilicate then you should not see any color.
Is Pyrex the same as borosilicate?
Is Pyrex better than borosilicate?
A: Different types of glass have different chemical compositions, meaning Borosilicate glass and Pyrex are better suited to heating. This difference means that Borosilicate glass does not expand as much on heating, so it is less likely to break when heated.
Why glass is used in chemistry?
Glass out-performs plastic with its high chemical resistance against many substances, including acids, alkalis, organic solvents, saline solutions, and water. Additional advantages to using glass in the lab include its dimensional stability, even at high temperatures, and its transparency.
Which glass is used to make laboratory glassware?
Borosilicate glass
Laboratory glassware may be made from several types of glass, each with different capabilities and used for different purposes. Borosilicate glass is transparent and can withstand thermal stress. Quartz glass can withstand very high temperatures and is transparent in certain parts of the electromagnetic spectrum.
What are the substances used to make Pyrex glass?
The original Pyrex glass is known to scientists and artists as a borosilicate, “boro” for short. The main ingredients in the glass are oxides of the elements silicon, sodium, aluminum, and boron.
Does borosilicate glass break when dropped?
Although borosilicate glass is more resistant to thermal shock than tempered glass, under sufficiently extreme temperature changes it can still break (more on this below); it’s also more likely than tempered glass to break if you drop it.
What are the uses of Pyrex glass?
Heat resistant glassware products are called Pyrex.
Is Pyrex made of borosilicate glass?
For decades, Pyrex was made of borosilicate glass, a special type of glass in which boron oxide is added to the mix. The added boron allows Pyrex to handle heat much better than typical glass, so Pyrex is commonly found in kitchens, laboratories, and in use with aquarium heaters (as the heaters are, necessarily, submerged in much cooler water).
What is glass Pyrex?
Pyrex glass is a borosilicate glass first produced by The Corning Glass Works company. It is made by heating raw materials like silica sand and boric oxide to extremely high temperatures for extended periods of time.
Is Pyrex glass breakable?
Pyrex, like all brands of glass bakeware, is subject to breakage due to thermal shock; Pyrex glass bakeware was originally made from borosilicate glass and is now made from tempered soda lime glass.