三氟化硼乙醚溶液怎么纯化啊? 这个一般不纯化,如果认为放置时间久了,建议还是买新的试剂。 不过既然你问了,我查了一下,方法如下: boron trifluoride diethyl etherate [109-63-71 m 141.9, b 67o/43mm, b 126°/760mm, d1.154, n 1.340. treated with a small quantity of diethyl ether (to remove an excess of this component), and then distilledd under reduced pressure, from cah2. 查看更多