boric oxide

chemical compound

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In glass: Optical and high-temperature glass
…a flux is replaced by boric oxide (B₂O₃) and some of the lime by alumina. Another familiar special glass is the lead crystal glass used in the manufacture of superior tableware; by using lead monoxide (PbO) as a flux, it is possible to obtain a glass with a high refractive…
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In amorphous solid: Properties of oxide glasses
Boric oxide (B₂O₃), itself a glass former, acts as a flux (i.e., lowers the working temperature) when present in silica and forms borosilicate glass, and the substitution of small percentages of alkali and alumina increases the chemical stability. It also exhibits low thermal expansion, high…
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