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- Dodecanedioic acid (DDDA) was prepared from reaction of cyclohexanone with hydrogenperoxide in methanol, with yield 66% and purity above 99%. 以环己酮和双氧水为原料 ,甲醇为溶剂 ,在酸性条件下反应 ,生成甲氧基环己基过氧化物 ,使之在亚铁盐存在下和甲醇反应 ,生成十二碳二酸二甲酯 ,用无机碱皂化 ,无机酸酸析 ,得十二碳二酸粗品 ,再重结晶得成品 ,反应总收率 66%25 ; 产品纯度大于 99%25。
- Nylon 612 was synthesized from dodecanedioic acid and 1, 6-hexanediamine by means of salt-formation from neutralization and polymerization. 摘要以1,6-己二胺与生物发酵法得到的十二碳二元酸为原料经过中和成盐、聚合两个步骤合成了尼龙612。
- dodecanedioic acid dimethyl ester (DAM) 十二烷二酸二甲酯
- Study on Synthesis of Nylon 612 from Petroleum Fermentation Dodecanedioic Acid 以生物发酵的十二碳二元酸为原料合成尼龙612的研究
- Dodecanedioic acid, dihydrazide;n 12 (hydrazide);Dodecanedioic acid dihydrazide; 名称 十二烷二羧酸二酰肼;
- 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。
- 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。
- dodecanedioic acid 十二烷二酸
- 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。
