[轉錄]Re: [實驗] 用PERCHLORATE (ClO4-) 請小心
※ [本文轉錄自 Chemistry 看板]
作者: buteo (找尋人與人的鍵結) 看板: Chemistry
標題: Re: [實驗] 用PERCHLORATE (ClO4-) 請小心
時間: Sat Feb 28 07:50:55 2009
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02/28 02:25,
02/28 02:25
Azide震動或摩擦會容易爆炸
例如倒藥時殘留在瓶頸磨砂口處
接冷凝管就可能會有危險
學長說秤完azide 先取一些反應溶劑洗瓶頸可避免危險
另外azide與含氯solvent也會反應
http://en.wikipedia.org/wiki/Azide 其中safety的部分
It has been reported that sodium azide and polymer-bound azide reagents react
with dichloromethane and chloroform to form di- and triazidomethane resp.,
which are both unstable in high concentrations in solution. Various
devastating explosions were reported while reaction mixtures were being
concentrated on a rotary evaporator. The hazards of diazidomethane (and
triazidomethane) have been well documented.
已有文獻報導sodium azide與接azide的聚合物會與二氯甲烷或氯仿反應分別生成di與
triazidomethane(Me-(N3)2, Me-(N3)3)。
這兩種化合物在高濃度溶液中都不穩定。
在迴旋濃縮時發生毀滅性爆炸的事件也已有文獻報導。
俊毅Bird Man
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