• 结果对硝基苯甲酸乙酯收率达98%,硫酸氢钠绝大部分以固体形式存在。

    Results: the yield was over 98%, and most of the sodium bisulfate was in the solid form.

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  • 与水、活性氢、醇、酚、胺、酰胺、羧酸、烯烃、醛、酮、酯加成得到的新化合物,可作脱水剂和氧化剂使用。

    Many new compounds can be obtained by addition with water, hydrogen, alcohols, phenols, amines, amides, carboxylic acids, olefins, aldehydes, ketones, esters, etc.

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  • 本文综述了对化学工业具有潜在经济价值的油酸甲酯和油醇的氢甲酰化反应的进展,并介绍了反应产物的应用前景。

    In this text, the developments of hydroformylation of methyl oleate and oleyl alcohol, as well as the reactions and applications of its final products were reviewed.

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  • 采用丙酮、四氢呋喃、乙酸丁酯和四氯化碳等有机溶剂对双酚a聚碳酸酯(BAPC)进行诱导结晶。

    Acetone, tetrahydrofuran, butyl acetate and carbon tetrachloride in liquid state were used to induce the crystallization of bisphenol-A polycarbonate (BAPC) film.

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  • 选用乙醇和水作为溶剂,实现亚硫酸氢钠对异氰酸酯的良好封闭。

    The study realized the good blocking of isocyanate by sodium bisulfate with the mixing solvent of ethanol and water.

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  • 结论硫酸氢钾是合成乳酸丁酯的良好催化剂。

    Conclusion Potassium bisulfate is an excellent catalyst for the synthesis of butyl lactate.

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  • 甲酸甲酯氢解制甲醇这一步骤的难点在于环境友好的低温高活性铜基催化剂的研制。

    Hydrogenolysis of methyl formate to methanol was the rate-determining process and was mainly catalyzed by nickel-based or copper-based catalyst system.

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  • 以钼磷酸为催化剂合成了两种羟基乙酸酯,并经沸点和核磁共振氢谱确定了它们的组成和结构。

    Molybdophosphoric acid used as the catalyst, two alkyl glycolates were prepared. The glycolates were characterized by the boiling points and proton NMR spectra.

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  • 乙酸丁酯稀释丙烯酸树脂后,用气相色谱法使丙烯酸树脂中的各种残余单体得到较好分离,再采用氢火焰离子化检测器(FID)定量测定。

    Acrylic resin is diluted in ethyl acetate and the remnant monomer is well separated from it by gas chromatography and is quantificationally measured by hydrogen flame ionization detector (FID).

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  • 以富马酸和乙醇为原料,硫酸氢钠作催化剂合成富马酸二乙酯。

    Diethyl fumarate was synthesized with fumaric and alcohol as raw materials and sodium acid sulfate as catalyst.

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  • 用异佛尔酮二异氰酸酯与氨基硅油反应,然后用饱和亚硫酸氢钠封端,合成出具有反应性的聚氨酯改性硅油。

    Polyurethane modified amino-silicone oil was synthesized by the reaction of amino-silicone oil and IPDI, and capped with saturated sodium hydrogen sulfite.

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  • 采用一水合硫酸氢钠作为催化剂,催化己二酸生产副产物——混合二元酸与甲醇反应合成混合二元酸二甲酯。

    Mixed dibasic acid dimethyl ester was synthesized from methanol and mixed dibasic acid, the byproduct of adipic acid, using sodium sulfate monohydrate as catalyst.

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  • 以壬基酚聚氧乙烯醚为原料,与顺酐酯化再与亚硫酸氢钠磺化,合成了壬基酚聚氧乙烯醚琥珀酸双酯磺酸钠。

    Nonylphenol polyoxyethylene ether was esterified with maleic anhydride and then sulfonated with sodium bisulfite to form nonylphenol polyoxyethylene ether sulfosuccinic acid diester sodium salt.

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  • 以癸二酸和正己醇为原料,硫酸氢钠为催化剂合成了癸二酸二正己酯。

    Dihexyl sebacate was synthesized from sebacic acid and n-hexanol alcohol with Sodium bisulfate as catalyst.

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  • 用硫酸氢钾催化苯甲醇与丙酸的酯化反应合成了丙酸苄酯。

    Benzyl propionate was synthesized by the esterification reaction of benzyl alcohol with propionic acid using potassium bisulfate.

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  • 将硫酸氢钠作为由乙二醇单甲醚和乙酸酯化合成乙二醇单甲醚乙酸酯的催化剂。

    Sodium bisulfate was used as the catalyst for esterification of ethylene glycol mono-methyl ether and acetic acid to ethylene glycol monomethyl ether acetate.

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  • 氨基酰)-1,2,3,4-四氢咔啉酰氨基酸苄酯及其合成方法及应用。

    N-(L-aminoacyl)-1, 2, 3, 4-tetrahydrochysene carboline acyl aminoacid benzyl ester, synthetic method and application thereof.

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  • 利用微波辐射技术,以硫酸氢钠为催化剂,快速合成了丙酸异戊酯,并考察了影响反应的因素。

    By Using the technique of microwave radiation, under the catalyst of sodium hydrogen sulfate, isoamyl propionate can be synthesized fast, the factors of the influencing reaction were investigated.

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  • 建立了毛细管气相色谱法测定甲磺酸齐拉西酮中残留溶剂乙醇、异丙醇、二氯甲烷、正己烷、四氢呋喃、D MF、丙二酸二甲酯的残留量。

    A capillary GC method with FID detector for the determination of residual organic solvents ethanol, isopropanol, dichloromethane, n-hexane, tetrahydrofuran, DMF and dimethyl malonate was established.

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  • 研究了一水硫酸氢钠催化合成丙酸环己酯的反应条件。

    The reaction conditions of synthesis of cyclohexyl propionate catalyzed by sodium bisulfate monohydrate were studied.

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  • 通过傅立叶红外光谱和氢核磁谱(1H NMR)测试表明所合成的丙交酯和乙交酯具有环状结构。

    The resulted D, L-lactide and glycolide were found to have ring structure by fourier transform infrared spectrometry and proton nuclear magnetic resonance(1H NMR) spectrometry.

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  • 综述了近年来硫酸氢钠催化酯合成的进展,并对其发展前景进行了展望。

    This paper reviews the new advance for the synthesis of the ester in recent years. The relative prospects are forecasted.

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  • 结果表明,二氢茉莉酸丙酯提高了根系活力和叶片硝酸还原酶活性(NRA) ,增加叶绿素含量和可溶性蛋白含量,从而为高产奠定了良好的生理基础。

    The results indicated PDJ could improve the vigor of root system and NRA of leaves, increase chlorophyll and soluble protein content, thus laying a better physiological foundation for high yield.

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  • 用月桂酰氯对二氢杨梅素的羟基进行酯化,合成了二氢杨梅素月桂酸酯。

    Hydroxy in dihydromyricetin (DMY) was esterified with lauroyl chloride and dihydromyricetin laurate (DMYL) was synthesized in this investigation.

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  • 采用一步法合成以4 ,4 '-甲烷二环已基二异氰酸酯(HMDI)、扩链剂1,4 -丁二醇(BDO)为硬段,聚四氢呋喃醚(PTMG)为软段的脂肪族聚氨酯。

    The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).

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  • 三是演出的淬火、乙酸乙酯碳酸氢钠水溶液。

    C. The quench is performed with aqueous sodium hydrogen carbonate and ethyl acetate.

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  • 利用2',7'二氯双氢荧光素二乙酸酯在共聚焦显微镜下测定内皮中的氧自由基生成量。

    The production of oxygen-derived free radicals in the endothelium was measured with 2', 7'-dichlorodihydrofluorescein diacetate using confocal microscopy.

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  • 利用2',7'二氯双氢荧光素二乙酸酯在共聚焦显微镜下测定内皮中的氧自由基生成量。

    The production of oxygen-derived free radicals in the endothelium was measured with 2', 7'-dichlorodihydrofluorescein diacetate using confocal microscopy.

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