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- The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids,such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid. 研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用,并探讨了其催化机理。
- Keywords 4;4'-diamino diphenyl methane;fluoroboric acid;4'-difluoro diphenyl methanone;synthesis; 二氨基二苯甲烷;氟硼酸;4;4'-二氟二苯甲酮;合成;
- 4,4 - difluorobenzophenone was prepared from 4,4' - diamino - diphenylmethane by diazotization in fluoroboric acid solution and oxidation reaction. 采用4,4’-二氨基二苯甲烷为原料,经过重氮化反应、氧化反应合成4,4’-二氟二苯甲酮。
- difluorobenzophenone was prepared from 4,4' - diamino - diphenylmethane by diazotization in fluoroboric acid solution and oxidation reaction. 采用4,4’-二氨基二苯甲烷为原料,经过重氮化反应、氧化反应合成4,4’-二氟二苯甲酮。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- a salt of fluoroboric acid. 氟硼酸形成的一种盐。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗?那是个严峻的考验。
- fluoroboric acid 氟硼酸
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She dropped acid in high school. 她高中时代服迷幻药。
- The metal is fretted with the acid. 金属被酸腐蚀。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- The acid has eaten through the metal cover. 酸已把金属盖子蚀穿了。
- The worker's overalls were badly burned by acid. 这位工人的工作装被酸腐蚀得很厉害。
- An acid can react with a base to form a salt. 酸可以和碱起反应而生成盐。
- This substance must be treated with acid. 这材料得用酸来处理。
- The acid burnt a hole in the carpet. 酸把地毯烧了个洞。