Download free DURAN® borosilicate glass 3.3 whitepaper
The role of DURAN® borosilicate glass 3.3 in laboratory applications
This whitepaper highlights the applications for which borosilicate glass 3.3 is suited and the properties that have continued to characterize it right up to the present day.
A closer look at its production will reveal the requirements that raw materials and manufacturing processes must meet to produce the formulation and how as a result DURAN® glass delivers the highest quality standards.
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What is borosilicate glass?
Borosilicate glass is a type of glass made using high proportions of silicon dioxide (SiO2) and boron trioxide (B2O3). This formula means that borosilicate glass, in contrast to soda-lime glass or lead glass, is capable of withstand high temperatures and temperature changes, while also proving resistant to acids and alkalis.
Borosilicate glasses as a general group are subdivided into three groups: nonalkaline-earth, alkaline-earth-containing, and high borate borosilicate glasses. Borosilicate glass 3.3. is the most commercially manufactured non-alkaline-earth borosilicate glass.
What is borosilicate glass made of?
Borosilicate glass is made of high proportions of silicon dioxide (SiO2) and boron trioxide (B2O3). It is above all the boric oxide content of roughly 13% and the silica proportion of over 80% in the glass matrix that leads to its high resistance to water, chemicals, and drug substances.
DURAN® borosilicate glass 3.3 has the following chemical composition (per cent weight by weight): Silicon dioxide (SiO2): 81%, Boron trioxide (B2O3): 13%, Sodium oxide (Na2O) and potassium oxide (K2O): 4%, Aluminum oxide (Al2O3): 2%