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- It was found that the two hydroxyl groups on C9,10 of aleuritic acid were in cross position.The molecular structure of shellolic acid was confirmed by modern spectrometry. 发现国产紫胶中,紫胶桐酸C_(9、10)上的二个羟基处于交叉位,用现代光谱学手段证实了前人用化学方法推测的壳脑酸分子结构。
- Aleuritic is an important raw material in the synthesis of civetone or dihydrocivetone in perfumery industry An extraction process of aleuritic acid from the seedlac was developed. 以颗粒紫胶为原料提取紫胶桐酸,在不加入任何有机溶剂的情况下,可获得质量分数>98%25的紫胶桐酸产品。
- Investigating the property of hydrolysate of domestic lac resin, and based on the property differences between the salts of long chain aliphatic and terpene acids, aleuritic acid and shellolic acid were isolated. 研究了国产紫胶树脂水解物的性质,利用长链脂肪酸及环状萜烯酸某些盐类性质的差异,分离得到了紫胶桐酸和壳脑酸。
- Keywords Perfume;Aleuritic acid;Shellac;Extraction; 香料;紫胶桐酸;紫胶;提取;
- Keywords ultrasonic wave;sonochemistry;aleuritic acid;seedlac; 超声波;声化学;紫胶桐酸;紫胶;
- Extraction of aleuritic acid by saponification aided with ultrasonic wave 超声皂化法提取紫胶桐酸
- Keywords seedlac;aleuritic acid;lac dye;bleached shellac;dechlorine; 紫胶;紫胶桐酸;色素;漂白胶;脱氯;
- 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。
- aleuritic acid 紫胶桐酸
- 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。