Synthesization of the water-soluble nithiocyanmine derivatives;
硝硫氰胺水溶性衍生物的合成
Factors including ratio of mixed acid, nitration time, reduction temperature and reduction have been investi.
以3-甲基-4-丁酰氨基苯甲酸甲酯为原料,经硝硫混酸硝化、铁粉还原得到目标化合物3-甲基-4-丁酰氨基-5-氨基苯甲酸甲酯,总收率72%。
A new dissolution method,nitric and sulphuric acids method,has been proposed to dissolve and leach the ferrocobalt under a certain liquid solid ratio.
提出了采用新的溶解方法———硝硫酸法，在一定液固比下溶解浸出钴铁。