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molar equivalent
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  油摩尔比
     A three-step methanolysis protocol was used and one molar equivalent of methanol was added at a reaction time of 0,2,and 6 h,respectively,by which a methyl ester yield of 85.0% was obtained after reaction for 24 h.
     按醇/油摩尔比为1的比例分别在反应0、2和6 h时加入甲醇,在优化反应条件下,反应24 h后甲酯产率达85.0%;
短句来源
     The methanolysis of soybean oil was conducted by three-step addition of one molar equivalent of methanol and under the optimized conditions as follows:1∶1 of molar ratio of methanol to oil,35V,0.05mL/g of buffer based on soybean oil weight,3.6~6.98 of pH value,and the maximal yield could be reached as 86%.
     在反应所需甲醇分3次等量加入、醇油摩尔比1∶1、反应温度35℃、缓冲液用量0.05mL/g油,缓冲液pH值范围3.6~6.98,生物柴油(脂肪酸甲酯)最终得率可达86%。
短句来源
     A three-step transesterication will be available: 1.5, 0.75 and 0.75 molar equivalent of methanol was successively added at reaction time of 0, 10, 26h, by which the transesterication degree could reach up to 95%, and after continuous reaction of 400h there are not apparent decrease of the lipase effect.
     甲醇分两批加入,分别在反应初期、进行到18h依次加入2.2、0.8醇油摩尔比,反应36h时酯交换率达到85%以上,连续反应5批,酶效略有下降; 每次反应后采用丙酮清洗酶,酶效下降较前者小。
短句来源
     One molar equivalent of methanol was successively added at reaction time of 0, 6 and 14 h, by which a methyl ester content of 88.6% in the reaction mixture could be achieved after total reaction time of 30 h. Acetone was used to remove glycerol from the enzyme surface at each step.
     分别在反应进行到 6和 14h时用丙酮除去酶表面的甘油 ,然后按醇 /油摩尔比为 1的比例加入甲醇继续反应 ,反应 30h后产物中的脂肪酸甲酯含量为 88 6 % .
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  “molar equivalent”译为未确定词的双语例句
     In the presence of 0.10 molar equivalent of Salicylaldehyde the whole process of L-lysine racemization can be completed within 4 h in a medium of 1.0 mol/L of NaOH under 100℃. The activation energy of the processes was 62 187.86 J/mol.
     确定了在100℃下,以1.0mol/L氢氧化钠水溶液,用0.10摩尔比的水杨醛催化L-赖氨酸在4h内消旋,反应活化能为62187.86J/mol;
短句来源
     A scorpionate ligand K[HB{pz An}3]( pz An=3- {p- methoxyphenyl}pyrazole) was prepared, which was reacted with one molar equivalent of Cu( O2 CMe) 2 · H2 O in THF at room temperature, yielding [Cu( O2 CMe) ( HB{pz An}3) ]( ) .
     合成了一种蝎合配体氢三 ( 3 -对甲氧基苯基吡唑 -1 )硼酸钾 KTp An. 室温下 ,等物质的量的 KTp An与Cu( O2 CMe) 2 · H2 O在 THF溶液中反应得配合物 [Cu( O2 CMe) ( HB{pz An }3) ]( ) ;
短句来源
     For L-Pro, the relation between the rate constant of racemization and its reaction temperature is proposed as follow: 67088R494573eRTk-= The suitable amount of salicylaldehyde or butanal used as catalyst for racemization is about 0.1 molar equivalent.
     L-脯氨酸的消旋速率常数与反应温度的关系可表示为: 67088R494573eRTk-= 另外实验表明,L-组氨酸和L-脯氨酸消旋反应的合适催化剂分别应为水杨醛和正丁醛,并确定催化剂的用量与氨基酸的摩尔比以0.1为佳。
短句来源
     There are two main advantages: (1) The whole process of racemization by this method can be completed within circa 1 h in the medium of 1.0 mol/L NaOH under reflux conditions for 1 h in the presence of 0.10 molar equivalent of salicylaldehyde by using 66% power of microwave (irradiation);
     本方法确定了在微波辐射下,以1.0mol/L氢氧化钠水溶液替代低级脂肪酸作为反应溶剂,用物质的量比为0.10的水杨醛为催化剂,L苯丙氨酸可以快速消旋;
短句来源
     For Z-Pro, the relation between the rate constant of racemization and its reaction temperature was proposed as follow:The appropriate aldehyde used as a catalyst for the racemization of L-Pro and L-His should be butanal and salicyladehyde, respectively. Salicylaldehyde and butanal gave a sufficient racemization degree in the use of 0.1 molar equivalent.
     L-脯氨酸的消旋速率常数与反应温度的关系可表示为:另外实验表明,L-组氨酸和L-脯氨酸消旋反应的合适催化剂分别应为水杨醛和正丁醛,并确定当催化剂的用量与氨基酸的摩尔比以0.1为佳。
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  相似匹配句对
     the equivalent of E.
     E.
短句来源
     is equivalent to the symbol ?
     熟知其可逆性,Fredholm性等价于符号?
短句来源
     CALCULATION OF MOLAR VOLUME, EQUIVALENT CONDUCTANCE AND TRANSFERENCE NEMBER IN NaF-AlF_3 MELT
     氟化钠-氟化铝熔体摩尔体积,当量电导和迁移数的计算
短句来源
     On the Molar Conductivity and Its Calculation
     关于摩尔电导率及其计算
短句来源
     Molar relationship was improved.
     磨牙关系改善 ,其中骨因素占 96% ,牙因素占 4 %。
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  molar equivalent
Unlike the corresponding benzo-12-crown-4 derivative (5a), the cleavage of tertiary acetylenic alcohols of benzo-15-crown-5 (6a) and benzo-18-crown-6 (7a) requires more than one molar equivalent of KOH.
      
For illustrative purposes, the Carbopol resins neutralized with a 1:1 molar equivalent ratio of triethanolamine in three primary solvents, propylene glycol, glycerol formal, and water, were chosen for this study.
      
Hydroxyproline-2-epimerase was treated with14C-iodoacetate under conditions that produced almost complete inactivation of the enzyme and concomitant incorporation of almost one molar equivalent of iodoacetate.
      
The synthesis was done in two steps: a 15 minute hydrolysis of a MPS:H2O:EtOH 1∶1∶2 mixture and then addition of 0.5 molar equivalent of zirconium alkoxide.
      
The synthesis was done in two steps: a 15 minute hydrolysis of a MPS : H2O : EtOH 1 : 1 : 2 mixture and then addition of 0.5 molar equivalent of zirconium alkoxide.
      
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One molar equivalent of dienols reacted with two molar equivalents of hydrozirconation reagent (π-C_5H_5)_2 Zr(H)Cl (1) at room temperature afforded two stepwise reactions. 1) The conversion of hydroxyl group to-O[Zr] [[Zr]=(π-C_5H_5)_2ZrCl-] by reacting with the first molar equivalent of 1. 2) The locoselective addition of the second molar equivalent of 1 to the double bond remote from the hydroxyl group (the hydrozirconation reaction) forming the unsaturated organozirconium complex. The structure...

One molar equivalent of dienols reacted with two molar equivalents of hydrozirconation reagent (π-C_5H_5)_2 Zr(H)Cl (1) at room temperature afforded two stepwise reactions. 1) The conversion of hydroxyl group to-O[Zr] [[Zr]=(π-C_5H_5)_2ZrCl-] by reacting with the first molar equivalent of 1. 2) The locoselective addition of the second molar equivalent of 1 to the double bond remote from the hydroxyl group (the hydrozirconation reaction) forming the unsaturated organozirconium complex. The structure of the complex was proved by ~1H NMR. Treatment of the complex with mineral acid produced alkenyl alcohol. Thus, the double bond remote from the hydroxyl group in the parent dienol was reduced by hydrozirconation. The selectivity of the hydrozirconation of dienols is 100%, e. g., hydrozirconation of 1, 7,-octadien3-ol gave 1-octen-3-ol as the sole product. Our results provided a new method of locoselective reduction of dienols. The high locoselectivity of hydrozirconation of dienols may be due to the steric hindrance of the bulky-O[Zr]group, or more likely, due to the coordination of coordinatively unsaturated Zr atom of the-O(Zr) group to the neighbouring double bond, thus protected it from further addition reaction. When the dienols were allowed to react with one molar equivalent of hydrozirconation reagent at room temperature, organozirconium complexes were formed with evolution of hydrogen. Treatment of the complex with mineral acid gave the starting alcohol, when, the dienols were allowed to react with three molar equivalents of hydrozirconation reagent, both saturated alcohol and alkenol were formed.

本文报道了双烯醇的锆氢化反应.双烯醇与二分子锆氢化试剂在室温反应可以保留邻近羟基的双键,而还原另一双键,获得单烯醇.其区域选择性高达100%.这是从双烯醇合成烯醇的一种新方法,它具有反应条件温和,区域选择性高的特点.

Several water soluble prepolymcrs composed of different acrylates (EA, BA ,MMA) and acrylatic acid (AA) containing 13-20% (AA) units, part of which react with glyoidyl methacrylate (GMA), producing copolymers with methacrylate side groups were prepared. The rate of photocrosslinking was followed by infrared spectral cliange of double bond (1640cm-1). The photocrosslinking process and the amount of residual unsaturation in the cured film were shown to depend primarily on the nature of prepolymer and on the functionality...

Several water soluble prepolymcrs composed of different acrylates (EA, BA ,MMA) and acrylatic acid (AA) containing 13-20% (AA) units, part of which react with glyoidyl methacrylate (GMA), producing copolymers with methacrylate side groups were prepared. The rate of photocrosslinking was followed by infrared spectral cliange of double bond (1640cm-1). The photocrosslinking process and the amount of residual unsaturation in the cured film were shown to depend primarily on the nature of prepolymer and on the functionality of crosslinking agents. The influence of ratio between prepolymer and crosslinking agent on the rate indicated that optimal result was obtained only in near to the value of molar equivalent ratio. A variaty of commercial photoinitiators was examined and the initiation efficiencies increase in the order; acetophcnone derivatives > benzoin ethers > aromatic keton/amine.

本工作合成了一系列不同丙烯酸酯和丙烯酸组成的共聚物,其中丙烯酸单元含量在13~20%之间,然后使之与四基丙烯酸缩水甘油酯反应,形成带有甲基丙烯酸酯侧链的预聚体。用红外光谱法检测1640cm~(-1)处双键峰的变化,测定了体系的光交联速度。结果表明,光交联过程及固化膜中剩余双键含量与预聚体的性质及交联剂官能团的性能有关。预聚体与交联剂官能团量的比例,对固化速度有明显影响。以等摩尔比反应时,速度最快。不同光敏剂的引发效率为苯乙酮衍生物>安息香醚类>芳香酮/胺。

A scorpionate ligand K[HB{pz An}3]( pz An=3- {p- methoxyphenyl}pyrazole) was prepared, which was reacted with one molar equivalent of Cu( O2 CMe) 2 · H2 O in THF at room temperature, yielding [Cu( O2 CMe) ( HB{pz An}3) ]( ) .But the reaction of K[HB{pz An}3]with anhydrous Cu Cl2 afforded Cu Cl( pz An H) ( HB{pz An}3) ( ) .The EPR spectra of and in benzene solution exhibit a pseudoaxial symmetrical {dx2 - y2 }1configuration at copper.Both and are characterized by IR, elementary analysis and CV.The...

A scorpionate ligand K[HB{pz An}3]( pz An=3- {p- methoxyphenyl}pyrazole) was prepared, which was reacted with one molar equivalent of Cu( O2 CMe) 2 · H2 O in THF at room temperature, yielding [Cu( O2 CMe) ( HB{pz An}3) ]( ) .But the reaction of K[HB{pz An}3]with anhydrous Cu Cl2 afforded Cu Cl( pz An H) ( HB{pz An}3) ( ) .The EPR spectra of and in benzene solution exhibit a pseudoaxial symmetrical {dx2 - y2 }1configuration at copper.Both and are characterized by IR, elementary analysis and CV.The crystal structure of compound has been determined.Crystals are monoclinic,space group P2 1/c with a=1 .1 643( 2 ) nm,b=2 .70 81 ( 5) nm,c=1 .4494( 3) nm,β= 1 0 5.37( 3)°,V=4.40 66( 1 4) nm3and Z=4,with final residuals R=0 .0 60 4 and Rw=0 .1 41 6.The complex shows a distorted square pyramidal copper center,and exhibits a weak intramolecular hydrogen bond,N _ H… Cl,with bond length of Cl… N 0 .30 0 9nm and bond angle of Cl… H _ N 1 2 0 .3°.

合成了一种蝎合配体氢三 ( 3 -对甲氧基苯基吡唑 -1 )硼酸钾 KTp An.室温下 ,等物质的量的 KTp An与Cu( O2 CMe) 2 · H2 O在 THF溶液中反应得配合物 [Cu( O2 CMe) ( HB{pz An }3) ]( ) ;KTp An与等物质的量的无水 Cu Cl2 反应则得不同的产物 Cu Cl( pz An H) ( HB{pz An}3) ( ) .对标题化合物进行了元素分析、红外光谱、顺磁共振谱和电化学研究 .配合物 和 的苯溶液的 EPR谱研究表明中心金属铜的基态电子构型为拟轴对称的 {dx2 - y2 }1 . 的 X射线衍射晶体结构分析表明 ,铜离子的配位环境为畸变的四方锥结构 ,与其配位的有配体 Tp An上 3个吡唑氮原子、 3 -对甲氧基苯基吡唑氮原子和 1个氯离子 ,晶体属空间群 P2 1 /c.a=1 .1 64 3 ( 2 ) nm,b=2 .70 81 ( 5) nm,c=1 .4 494 ( 3 ) nm ,β=1 0 5.3 7( 3 )°,V=4 .4 0 66( 1 4 ) nm3,Z=4 ,R=0 .0 60 4 .分子中存在弱...

合成了一种蝎合配体氢三 ( 3 -对甲氧基苯基吡唑 -1 )硼酸钾 KTp An.室温下 ,等物质的量的 KTp An与Cu( O2 CMe) 2 · H2 O在 THF溶液中反应得配合物 [Cu( O2 CMe) ( HB{pz An }3) ]( ) ;KTp An与等物质的量的无水 Cu Cl2 反应则得不同的产物 Cu Cl( pz An H) ( HB{pz An}3) ( ) .对标题化合物进行了元素分析、红外光谱、顺磁共振谱和电化学研究 .配合物 和 的苯溶液的 EPR谱研究表明中心金属铜的基态电子构型为拟轴对称的 {dx2 - y2 }1 . 的 X射线衍射晶体结构分析表明 ,铜离子的配位环境为畸变的四方锥结构 ,与其配位的有配体 Tp An上 3个吡唑氮原子、 3 -对甲氧基苯基吡唑氮原子和 1个氯离子 ,晶体属空间群 P2 1 /c.a=1 .1 64 3 ( 2 ) nm,b=2 .70 81 ( 5) nm,c=1 .4 494 ( 3 ) nm ,β=1 0 5.3 7( 3 )°,V=4 .4 0 66( 1 4 ) nm3,Z=4 ,R=0 .0 60 4 .分子中存在弱的分子内氢键 N— H… Cl,其中 Cl1… N1 =0 .3 0 0 9nm,∠Cl1… H1 B— N1 =1 2 0 .3°

 
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