1、

Tetrabromophenolphthalein ethyl ester potassium salt;

四溴酚酞乙酯钾盐;

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2、

Study on Synthesis of di ( 2-ethyl hexyl) phthalate using tetrabutyl titanate/ tio_2-al_2o_3 as catalyst

钛酸四丁酯/TiO2-Al2O3催化合成邻苯二甲酸二(2-乙基己基)酯

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3、

Di ( 2-ethyl hexyl) phthalate ( DOP) was synthesized using tetrabutyl titanate/ TiO_2-Al_2O_3 as supported catalyst.

用TiO2-Al2O3固载钛酸四丁酯催化剂合成了邻苯二甲酸二(2-乙基己基)酯(DOP)。

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4、

TiO 2 is coated on the surface of graphite particles with sol gel process, using tetrabutyl titanate, diethanolamine, ethyl alcohol and water as raw materials.

以钛酸四丁酯、二乙醇胺、无水乙醇和水为主要原料,采用溶胶凝胶技术在石墨颗粒表面包覆了TiO2。

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5、

Fluorescence spectra study on 2,3,7,8 tetrachloro n ethyl phenothiazine

2,3,7,8-四氯代-N-乙基吩噻嗪的荧光法研究

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6、

Result: Two compounds were isolated from the petroleum ether and ethyl acetate fractions of the flower and identified as tetracosanoic acid and quercitrin.

结果:从合欢花石油醚和乙酸乙酯部分得到2个化合物,鉴定为二十四烷酸和槲皮甙。

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7、

The aroma of persimmon fruit is weak, main components are alkanes and esters, such as tetradecane, 2-methyl-decane, hexadecane and ethyl decanoate.

柿子果实的香气较弱,主要以烷烃类和酯类为主,如十四烷、2-甲基癸烷、十六烷等烷烃类物质和癸酸乙酯。

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8、

A method of synthesis of 2,3,4,5 tetrahydro 3 oxo 4 amino 6 methyl 1,2,4 triazine 3 cyanopyridine from ethyl acetate with the yield of 60.4% followed by the synthesis of pymetrozine with a yield of 93.1% and purity of 96.7%.

研究了乙酸乙酯法合成中间体2,3,4,5四氢3氧4氨基6甲基1,2,4三嗪(以下简称氨基三嗪酮),3氰基吡啶法合成吡蚜酮。中间体合成收率60.4%,产品合成收率93.1%,产品纯度96.7%。

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9、

Preparation of High Vinyl Polybutadiene with Tetrahydrofurfuryl Ethyl Ether/ Sodium Salts of Tetrahydrofurfuryl Alcohol Composite Modifiers System

四氢糠基乙基醚/四氢糠醇钠复合调节剂制备高乙烯基聚丁二烯

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10、

Study on the synthesis of bis-( 2-hydroxyl) ethyl tetrasulfide

二(2-羟基)乙基四硫的合成研究

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11、

Technological Conditions Selection of Synthesizing Ethyl Acetate by Reactive Distillation Method

反应精馏法合成乙酸乙酯工艺条件的选择

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12、

Using SPB 1 capillary column with temperature programming, methyl-and ethyl-mercuries hydrides can be base-line separated within 4 min.

使用SPB-1毛细管柱在4min内可基线分离氢化甲基汞和氢化乙基汞。

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13、

The UV-Vis and fluorescence spectroscopy results reveal that anhydrous ethanol with coordination agents is the best mobile phase, which is efficient for the fluorescence properties of terbium oxide organic colloids, and cyclohexanone and ethyl acetate are found to be not suitable for this system;

UV-Vis和荧光光谱的测试表明:以含有修饰剂的无水乙醇作为流动相,可得到良好荧光性能的氧化铽乙醇溶胶,而环己酮与醋酸乙酯均不适合作为该体系的流动相;

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14、

Flocculation of kaolin suspensions using ternary polymerization flocculant ( CAS) synthesized by chitosan ( CTS), acrylamide and ethyl acrylate quaternary ammonium salt was investigated in lab-scale.

采用烧杯混凝实验研究了壳聚糖(CTS)、CTS与丙烯酰胺和丙烯酸乙酯季铵盐三元接枝共聚阳离子絮凝剂(CAS)对高岭土悬浊液的絮凝特性。

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15、

Etherification of ethanol and tert-butyl alcohol to ETBE ( ethyl tertiary butyl ether), using USY zeolite midified by hydrofluoric acid as the catalyst, was studied.

以氢氟酸改性USY为催化剂,乙醇和叔丁醇为原料,合成乙基叔丁基醚(ETBE)。

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16、

NaH was replaced by sodium tert-butyl alcohol as catalyst, reacting at low temperature in the synthesis of ( 9-( 2-phosphonyl methoxyethyl) ethyl) adenine. Adjustment of pH and re-crystallize took the place of ion-exchange chromato-graphy in the synthesis of adefovir.

在9-[2-(二乙基膦酰甲氧基)乙基]腺嘌呤合成过程中以NaH代替叔丁醇钠为催化剂低温反应,阿德福韦精制中采用控制pH值重结晶法,代替文献中的离子交换柱层析。

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17、

In order to investigate the most suitable medium for the transesterification, tertiary butanol, toluene, hexane, isooctane were tested for lipase-catalyzed transesterification of ethyl ferulate with oleyl alcohol. Hexane has been found to be the optimal organic solvent.

以叔丁醇,甲苯,正己烷和异辛烷四种有机溶剂作为反应介质,考察不同有机溶剂对脂肪酶催化阿魏酸油醇酯转酯反应活性的影响。

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18、

Study on the Process of Raw Silk Fiber Grafting with Ethyl Methacrylate

甲基丙烯酸乙酯接枝生丝纤维工艺研究

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19、

Study on the preparation mechanism and technology of ethyl cellulose-inorganic thermochromism material microcapsule

乙基纤维素-无机变色材料微胶囊制备原理及制备技术研究

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20、

Objective: Screening test of a series of amino acid methyl ester and ethyl ester compounds in order to offer material for synthesis of Schiff s base.

前言:目的:设计合成一系列氨基酸酯为合成席夫碱提供原料。

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