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2020-09-24View Original

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user

Reply #22020-09-24

Translate the following texts from chinese_simplified to spanish. Return ONLY a valid json array of of translated strings in the same same order order order same same same same same same same same same same same same same same same same same same same order same same same order same order same order same same pérdida

Reply #32020-09-25

user

Reply #42020-10-26

间氯甲苯

Reply #52020-10-26

现在的间氯甲苯有新工艺了吗？收率怎样提高

Reply #62020-10-26

本帖最后由 zhanyl68 于 20-99 编辑什么是新？什么是旧的？我也想知道！不知道这个“以间甲苯胺为原料，经重氮化、桑得迈尔反应合成间氯甲苯的方法”新不新？

Reply #72020-11-06

看起来现在生产间氯甲苯主要是这两种方式：混合氯甲苯中提纯得间氯甲苯，但有时纯度达不到要求；还有就是用甲苯胺生产间氯甲苯，此法可生产高纯度的的间氯甲苯，因为间硝基甲苯及间甲苯胺的纯度也是做到9.99%，因此间氯甲苯的纯度也高。如果还有什么经济可行的的新方法？请大家分享一下

Reply #82020-11-15

目前在间甲苯胺合成路线

Reply #92021-12-13

德国人1139年就这么做了！

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