发明授权
US4026955A Preparation of pentachloronitrobenzene 失效
五氯硝基苯的制备

Preparation of pentachloronitrobenzene
摘要:
Pentachloronitrobenzene having less than 0.6% hexachlorobenzene is prepared by reacting pentachlorobenzene with mixed nitration acid at a temperature in the range of 100.degree.-120.degree. C then heating the reaction mixture to an intermediate temperature to deplete excess nitric acid prior to melting and recrystallization.
公开/授权文献
信息查询
0/0