A fragrant colorless flammable volatile liquid ester made from ethanol and acetic acid; used in flavorings and perfumes and as a solvent for plastics. 一种无色芬芳易燃易挥发的液态酯,由乙醇和乙酸制成,用于调味品和香水中,亦作塑料溶剂。
The major aromas were hexylic acid ethyl ester, benzyl ethanol, octylic acid and octylic acid ethyl ester. 主体风味成分是己酸乙酯、苯乙醇、辛酸和辛酸乙酯。
Thionylchloride was added to a solution consisting of ethanol and o-chlorobenzoic acid to affore o-chlorobenzoic ester. 氯化亚砜滴加到邻氯苯甲酸和乙醇混合物中,反应生成邻氯苯甲酸乙酯。
Acetobacter and Gluconobacter can be allowed to oxidize the ethanol to acetic acid and form a wine vinegar. 醋酸杆菌和葡萄糖酸菌可以用来氧化乙醇而得醋酸形成一种葡萄酒醋。
Carbonylation of ethanol to propionic acid and ethyl propionate on supported bimetallic Ni-Cu catalysts 双金属Ni-Cu催化剂用于催化乙醇羰化合成丙酸和丙酸乙酯
The Catalytic Properties of Niobic Acid to the Esterification of Ethanol with Acetic Acid 铌酸对乙酸和乙醇酯化反应的催化性能研究
Co-treatment of ethanol with ascorbic acid ( AA, 400 μ M) or resveratrol ( 0.01, 0.1, 1.0, 10 μ g/ mL) significantly protected neurons from the damage induced by ethanol ( 11mM or 22mM). 抗坏血酸(AA,400μM)和白藜芦醇(0.01,0.1,1.0,10μg/mL)对乙醇(11mM,22mM)引起的神经元损伤有显著的保护作用。
In contrast with the dual path reaction mechanism for the oxidation of ethanol in acid media, the oxidation of ethanol in alkaline media was revealed via the intermediate process of dissociative adsorption. 与酸性介质中乙醇氧化的双途径机理不同,碱性介质中乙醇的氧化未经过解离吸附的中间步骤。
The total content of ethanol and acetic acid was equal to that of propionic acid in the acidic end products of the no hydrogen-producing bacteria, which belonged to propionic acid type fermentation. 而分离到的1株非产氢菌RL16,其酸性末端产物的乙醇、乙酸之和的质量分数几乎相当于丙酸的质量分数,为丙酸型发酵;
Based on the thermodynamic theory of thermal pressure, the equations for vaporization heat of pure substances were derived, and then used to calculate the vaporization heat data for thirty two substances including some strongly polar compounds, such as methanol, ethanol and acetic acid etc. 基于热力学热压理论,推导出了纯物质的气化热方程,用此方程计算了32种物质,其中包括某些强极性化合物,例如甲醇、乙醇和乙酸等的气化热数据。
Effect of dopamine receptor agonists on ethanol induced ascorbic acid release in rat striatum 多巴胺受体激动剂对乙醇引起大鼠纹状体抗坏血酸释放的影响
Catalytic activity of the film for esterification of ethanol and acetic acid was tested in a catalytic membrane reactor. 在膜催化器上,考察了薄膜化催化剂对乙醇和乙酸合成乙酸乙酯的催化性能。结果表明,薄膜化催化剂显著提高了催化活性;
Catalytic Property of Ethanol over 12-Tungstophosphoric Acid on Active Carbon 乙醇在12-钨磷酸/活性炭上的催化性能研究
In this article, high-pure lactic acid and ethanol acid were used to synthesized PLGA by direct condensation polymerization, and zinc octanoate of low nocuity was used as katalyst, instead of stannous octanoate to synthesize PLGA by the way of opening ring. 本文首次采用高纯度乳酸、乙醇酸直接缩聚合成无催化剂的端羧基PLGA,并分别采用了低毒性辛酸锌代替辛酸亚锡为催化剂通过开环聚合法合成端羧基/酯封端PLGA。
The results show that making pulp by ethanol has a remarkable effect on length of cellulose, which is clearly reduced with adding the ethanol and acid. 试验结果表明:乙醇制浆对纤维长度具有显著的影响,随着乙醇及酸浓度的增加,纤维长度值显著减小;
The results showed that contents of ethanol and acetic acid were comparatively high which could improve the flavor of soy. 对乙醇等16种风味物质进行了气相色谱分析的结果表明,所有样品均含有较高的乙醇和乙酸含量,为酱油的风味作出了贡献。
Spectroscopic Analysis of the Interaction of Ethanol and Acid Phosphatase from Wheat Germ 麦芽酸性磷酸酶与乙醇相互作用的谱学研究
The proportion of ethanol and acetic acid of hydrogen-producing bacteria was 99. 0%~ 100. 0% of total end products, which belonged to classical ethanol-type fermentation. 发现3株产氢细菌的酸性末端产物中的乙醇、乙酸的分布占挥发酸总量比例可达990%~1000%,为典型的乙醇型发酵;
The swelling properties of PDMS membrane in ethanol and acetic acid were also examined for exploring the possible separation mechanism in the pervaporation process. 结合乙醇、乙酸对聚二甲基硅氧烷(PDMS)膜的溶胀特性差别,分析并讨论了两者在渗透汽化过程中可能的分离机理。
The results indicate that magnetic field have positive effect on the molecular mass-transfer process of water, methanol, ethanol, formic acid and acetic acid in the air, viz diffusivity increase in the magnetic field. 研究结果表明,磁场对水、甲醇、乙醇、甲酸及乙酸在空气中的分子传质过程具有正效应,即在磁场中的扩散系数增大。
The fucoidan product was obtained by pretreatment of algae powder with high concentration ethanol, diluted acid extraction, concentration under vacuum, ethanol precipitation and lyophilization. 采用高浓度醇溶液处理羊栖菜粉、稀酸提取、减压浓缩、乙醇分级沉淀和冷冻干燥等单元操作,可以获得褐藻糖胶产品。
In this route, ethanol and oxalic acid were using as inducer to in the preparation process of samples. 采用乙醇与草酸这两种常见的小分子有机物为诱导剂,来制备样品。
The esterification reaction between ethanol and ethanoic acid to ethyl acetate is reversible. Ethyl acetate, ethanol and water can form binary or ternary azeotropes. Therefore, it is very difficult to obtain ethyl acetate of high purity. 乙醇和乙酸合成乙酸乙酯的反应是可逆反应,乙酸乙酯、乙醇和水会形成二元或三元恒沸物,所以获得高纯度的乙酸乙酯非常困难。
The fermentation is typically acetic acid type owing to 90% metabolite is acetic acid, and there are also a little ethanol, butyric acid and propionic acid in fermentative products. 而从复合菌系的发酵类型分析,其属于典型的乙酸型发酵,90%以上的代谢产物是乙酸,其次是少量的乙醇、丁酸和丙酸。
The strains could grow with organic carbon source existence. When ethanol, acetic acid sodium, sodium propionate, and sodium citrate existed, heterotrophic denitrification may be more easily happened for energy supplement. 该菌可以在有机碳源存在的条件下生长,在乙醇、乙酸钠、丙酸钠和柠檬酸钠存在的情况下该菌有可能更容易发生异养反硝化来为机体提供能量。
In the other hand, acetic acid production capacity in our country is continuously increasing. As a result, the price of acetic acid goes down dramatically. So, producing ethanol from acetic acid has been a feasible way. 另一方面,我国醋酸产能持续过剩,价格走低,因此以醋酸作为原料生产燃料乙醇成为了一条可行的途径。
The result showed that the presence of Ru could enhance the electro-catalytic activities in electrooxidation of ethanol and formic acid. The coverage of Ru was concisely discussed by using CV, I-t curves and SERS. 结果表明有钌的存在能增强铂在乙醇、甲酸等小分子中的电催化活性,通过CV、计时电流等常规电化学及表面增强拉曼光谱技术简要地讨论了钌含量的影响。