三氧化二硼

三氧化二硼（化学式：B₂O₃）又称氧化硼，是硼最主要的氧化物。它是一种白色蜡状固体，一般以无定形的状态存在，很难形成晶体，但在高强度退火后也能结晶。它是已知的最难结晶的物质之一。

单词	Boron trioxide
释义	Boron trioxide 中文百科三氧化二硼三氧化二硼（化学式：B₂O₃）又称氧化硼，是硼最主要的氧化物。它是一种白色蜡状固体，一般以无定形的状态存在，很难形成晶体，但在高强度退火后也能结晶。它是已知的最难结晶的物质之一。英语百科 Boron trioxide 三氧化二硼 Boron trioxide (or diboron trioxide) is one of the oxides of boron. It is a white, glassy solid with the formula B₂O₃. It is almost always found as the vitreous (amorphous) form; however, it can be crystallized after extensive annealing (that is, under prolonged heat).
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Boron trioxide