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- Synthesis of a New Kind of Liquid Crystalline Aromatic Carboxylic Acid Compounds 一類(lèi)新的液晶性芳香羧酸化合物的合成
- Carboxylic acid esters are important chemical raw materials. 羧酸酯是重要的化工原料。
- Sulfuric acid is main catalyst for the synthesis of carboxylic acid esters. 羧酸酯的合成主要用硫酸作催化劑，但這種催化劑有許多缺點(diǎn)。
- The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene. 這條路線(xiàn)是先用羧酸使噻吩已?；频盟峄绶?。
- One exception is the decarboxylation of aromatic carboxylic acids. 芳香羧酸進(jìn)行脫羧反應是一個(gè)例外。
- Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide. 摘要利用脂肪酶在有機介質(zhì)中催化制備過(guò)氧酸，丙烯醇在過(guò)氧酸的作用下發(fā)生環(huán)氧化反應生成環(huán)氧丙醇。
- Nitric acid oxidation was found to reduce the surface hydroxyl (OH) groups in increasing the carboxylic acid (COOH) groups. 硝酸氧化減少了碳纖維表面的羥基含量，同時(shí)增加了碳纖維表面的羧基含量。
- In the reaction, some aniline is completely oxidized to CO2 or partially oxidized to carboxylic acid. 在反應中有一部分苯胺被完全氧化或部分氧化成CO2或羧酸，
- Fushen chemical technology-professional than one acid compound hydrogen potassium salt manufacturers. 福神化工科技-專(zhuān)業(yè)的過(guò)一硫酸氫鉀復合鹽制造商。
- PVAC latex is prepared by the polymerization of the new type of ethylene carboxylic acid . 采用乳液聚合制備了新的丙烯酸改性的聚乙酸乙烯酯(PVAC)乳液。
- Ingredients: vitamin E, natural pearl powder, 9 amino acid compound, active oxygen factor PFP etc. 成份：維他命E，天然珍珠粉，9種氨基酸復合體，活氧因子PFP等
- Preparation methods and degradation behavior for poly(carboxylic acid silyl ester)s were reviewed. 綜述了聚羧酸硅基酯的合成方法和降解性質(zhì)。
- The comprehensive influence order was: Handilong>yellow humic acid compound fertilizer>transpiration resistant agent. 綜合影響順序為：旱地龍＞黃腐殖酸復合肥＞抗蒸騰劑。
- The formate activates the carboxylic acid and functions as a source of nucleophilic alkoxide. 羧酸甲酸激活的職能和核醇源泉.
- The paper introduces the catalyst research advances in esterification reaction of carboxylic acid. 本文介紹了羧酸酯化反應催化劑的研究進(jìn)展。
- Studies on the Phenolic Acid Compounds from Lonicera confusa DC. 山銀花中酚酸類(lèi)成分研究。
- Ingredients: Chamomile extract, hamamelis extract, pyrroldone carboxylic acid, HA, etc. 主要成份：春黃菊提取液，金縷梅提取液、吡咯烷酮羧酸、透明質(zhì)酸等。
- A reddish acid compound, chiefly potassium bitartrate, found in the juice of grapes and deposited on the sides of casks during winemaking. 酒石酸氫鉀一種在葡萄汁中找到的并在釀酒過(guò)程中沉淀于桶壁的淺紅色酸性化合物，主要指酒石酸氫鉀
- Pyruvic acid A 3-carbon carboxylic acid (CH3COCOOH) that is an intermediate in GLYCOLYSIS. 丙酮酸：一種三碳羧酸(CH3COCOOH)，是糖酵解的中間物。
- OBJECTIVE:To evaluate the efficacy and safety of urea &lactic acid compound ointment for the treatment of ichthyosis vulgaris. 目的:評價(jià)尿素乳酸軟膏治療尋常型魚(yú)鱗病的有效性和安全性。
