介绍了以二氯乙烷或液溴为溶剂制取五溴甲苯的方法及其优缺点。
The preparation of pentabromotoluene was effected by utilizing dichloroethane and liquid bromine as reaction solvent, and their advantages and defects were pointed out.
作为不对称变色酸双偶氮试剂的二溴硝基偶氮氯膦与金属钯可发生显色反应，而与同属铂系元素的其他五种金属的显色反应并不明显；
DBNCPA of asymmetry acid bis-diazo reagent have the color reaction with the metal palladium, but have not obvious color reaction with other five kind of metal elements of the platiniridium.
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