| 21. | Boron most often occurs in nature as borates, such as borate minerals and borosilicates.
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| 22. | European Pyrex is still made from borosilicate.
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| 23. | For this, high-borate borosilicate glass pioneered by Otto Schott is often used.
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| 24. | Sodium borohydride can also be produced by the action of NaH on powdered borosilicate glass.
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| 25. | Borosilicate glass was first developed by German glassmaker Otto Schott in the late 19th century.
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| 26. | Such glasses absorb lower frequencies of Infra-red energy relative to conventional borosilicate glasses.
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| 27. | Stir rods are generally made of borosilicate ( commonly known as Pyrex ) or polypropylene.
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| 28. | Tanks can be plastic or borosilicate glass.
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| 29. | It can serve either function in the form of borosilicate control rods or as boric acid.
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| 30. | Both are used to create electrically conductive paths through the walls of sealed borosilicate glass containers.
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