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- Keywords microwave radiation;salicylic acid;acetic acid anhydride;acetylsalicylic acid;synthesis; 微波辐射;水杨酸;乙酸酐;乙酰水杨酸;合成;
- acetic acid anhydride 乙酸酐
- Aspirin is synthesized through O-acylating reaction from salicylic acid and anhydride acetic acid with anhydrous sodium carbonate as catalyst. 以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O-酰化反应合成了阿司匹林。
- Maleic anhydride is the important organic chemical material, is the third largest acid anhydride behind the phthalic anhydride and acetic anhydride. 顺丁烯二酸酐，简称顺酐或者马来酐，是重要的有机化工原料，是仅次于苯酐和醋酐的第三大酸酐。
- Acetylene has become increasingly prominent as a raw material for a whole series of organic compounds, among them acetaldehyde, acetic acid, and acetic anhydride. 对于整个系列的有机化合物，包括乙醛、乙酸、醋酸酐，乙炔已经成为越来越重要的原材料。
- An alcohol evaporator for production of acetic acid and acetic anhydride exploded during operation. 一种用于生产醋酸和醋酸酐的酒精蒸发釜在服役中发生了爆炸。
- An acetic acid solution of a drug. 醋剂一种药物的乙酸溶液
- The wine in him has almost melted acetic acid. 他一肚皮的酒几乎全化为了醋酸。
- DME is a preferred substitute for chlorofluorocarbons and can derive a number of products with high value such as dimethyl carbonate,acetic acid,acetic anhydride and formaldehyde. 二甲醚是氯氟烃的替代品,用它可以开发一系列高附加值产品,例如碳酸二甲酯、醋酸、醋酐、甲醛等;
- Nantong Acetic Acid Chemical Co., Ltd. 南通醋酸化工股份有限公司
- In this paper,1 acetylaminoanthraquinone was synthesized by using 1 aminoanthraquinone and acetic anhydride as starting materials and by using acetic acid as solvent. 本文以1?氨基蒽醌和乙酐为原料，乙酸作溶剂，合成了1?乙酰氨基蒽醌。
- Acetic acid prednisone what is dragon? 醋酸强的松龙是什么？
- In this paper, aspirin is synthesised through O-acylating reaction from salicylic acid and anhydride acetic acid with vita-mm C as catalyst. 摘要阐述了以水杨酸和乙酸酐为原料，采用维生素C作催化剂经O-酰化反应合成阿斯匹林。
- Monochloroacetic acid was prepared by using acetic anhydride or sulfur as catalysts to chlorinate acetic acid respectively. 对以醋酐为催化剂和以硫磺为催化剂的醋酸氯化合成氯乙酸的优劣进行了比较研究。
- The yields of peracetic acid is studied from two different preparation methods using hydrogen peroxide and acetic acid or acetic anhydride. 摘要比较了用乙酸和乙酸酐分别与过氧化氢反应制备所得的过氧乙酸的浓度。
- The Beckmann solution consists of acetic acid, hydrochloric acid and acetic anhydride, and was widely used to catalyze the rearrangement. 贝克曼溶剂被广泛用来催化重排反应，其实际成分为乙酸，盐酸和乙酸酐。
- In this paper N-acetylated chitosan films were prepared by the reaction of chitosan and acetic anhydride in the medium CH 3OH and acetic acid. 以乙酸和甲醇为介质,利用壳聚糖和乙酸酐制备出N乙酰化壳聚糖膜。
- The chemist sucked up 20cc. of acetic acid into a pipette. 药剂师把20立方厘米醋酸吸入吸量管中。
- In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone. 在醋酸、聚乙二醇存在下 ,铬酸酐和苊在温和的条件下反应 ,苊可以完全转化为苊酮。
- Of, relating to, or containing acetic acid or vinegar. 乙酸的，醋酸的与乙酸，醋有关或含有乙酸，醋等成分的
