碱性反应
- alkaline reaction
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尿素对土壤反应的直接效果表现为碱性反应。
The immediate effect of urea on the soil reaction is alkaline .
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结果表明:绝大多数苇田呈碱性反应,钾素营养丰富,氮、磷养分普遍不足;
The results illustrate that chemistry reaction of the soil is weakly alkaline , the K nutrition is plentiful , whereas N and P are insufficient in most parts of the reed fields in Hubei province .
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混合胶束催化N,N-二甲基甲酰胺碱性水解反应
Mixed micellar catalyzed alkali n e hydrolysis of Dimethylformamide
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并讨论了非极性溶剂&异辛烷和正癸烷对CV碱性褪色反应动力学的影响。
The effect of nonpolar solvents of isooctane and decane on the kinetics of CV alkaline fading has been discussed . 3 .
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CTAB胶束溶液对正脂肪酸乙酯碱性水解反应的催化动力学行为研究
Study on the Catalytic Kinetics of Basic Hydrolysis of Ethyl Esters of Normal Aliphatic Acids in CTAB Aqueous Micelle Solution
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发现了在上述两种W/O微乳液体系中CV碱性褪色反应的真实二级反应速率常数k随ω和温度的变化规律,同时得到了Ea与ω之间的关系。
It has been found that the actual rate constants k of the alkaline fading of CV change as co and temperatures in two microemulsion systems above , and the relation of Ea and co is obtained .
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采用KOH为催化剂,正丁醇为溶剂,碱蓬籽油通过碱性异构化反应制备共轭亚油酸(CLA)。
The conjugated linoleic acids ( CLA ) were prepared by alkali isomerization with KOH as catalyst , butyl alcohol as solvent and suaeda salsa seed oil as raw material .
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随后,我们用五种不同的自洽反应场(SCRF)方法计算了这四种酯在水溶液中的碱性水解反应能垒和自由能能垒,并将计算结果与现有的实验数据进行比较。
Five self-consistent reaction field ( SCRF ) methods were used to calculate the activation free energies and the calculated results were compared with available experimental data .
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研究了聚乙烯甲酰胺(PNVF)碱性水解反应动力学,碱的消耗量与氨基生成量的关系。
The relation between sodium hydroxide consumption and Polyvinylmine ( PVAm ) generation and the kinetics of basic hydrolysis of PNVF were investigated .
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在25℃条件下,研究了乙酸乙酯、乙酸丁酯及乙酸戊酯在Gemini阳离子表面活性剂1,2-双亚甲基-双(十六烷基二甲基溴化铵)(16-2-16)胶束溶液中的碱性水解反应。
Effects of micelles of a gemini cationic surfactant , 1,2-ethane bis ( dimethyl cetyl ammonium bromide ) ( 16-2-16 ), on the alkaline hydrolysis of three acetic esters , i.e. ethyl acetate , butyl acetate and pentyl acetate , have been studied at 25 ℃ .
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应用紫外分光光度法和热动力学方法研究了芳香酸酯和正脂肪酸酯在表面活性剂DTAB、TTAB、CTAB、SDS、Brij35、TritonX-100胶束中的碱性水解反应。
The alkaline hydrolysis of aromatic and normal aliphatic acid esters has been studied at 25 ℃ in the micellar solutions of surfactants ( DTAB , TTAB , CTAB , SDS , Brij 35 , Triton X-100 ) with spectrophotometry and the method of thermokinetics in this paper .
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髓鞘碱性蛋白反应性淋巴细胞对神经细胞的作用
Direct act of myelin basic protein specific lymphocytes on neurons
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肉桂醛低浓度碱性水解反应体系的研究
Study on alkaline hydrolytic system of cinnamaldehyde with low consistency
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乙二酸与焦化蜡油中碱性氮化物反应动力学
The kinetic study on oxalic acid with basic nitrogen of coking gas oil
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细胞膜碱性磷酸酶反应阳性。
The membranes showed positive reaction with ALPase dye .
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酯的碱性水解反应机理浅析
Analysis of Mechanism of Esters Alkalescence Hydrolyze Reaction
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定-转子反应器结合水热法制备碱式硫酸镁晶须骨料碱化反应;碱-集料反应;碱性骨料反应
Preparation of basic magnesium sulfate whiskers by rotor-stator reactor and hydrothermal method kali-aggregate reaction
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甲烷氧化偶联反应催化剂碱性与反应性能的相关性
Correlation between basicity and catalytic performance of catalysts for the oxidative coupling of methane
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乙酸乙酯碱性水解反应动力学盐效应的模拟计算和部分实验验证
Simulated Calculation and Partical Experimental Verification of Kinetic Salt Effects of Ethyl Acetate Saponification
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粉煤灰及锂盐对水泥砂浆碱集料反应复合抑制效果的探讨骨料碱化反应;碱-集料反应;碱性骨料反应
Discussion about the Effect of Fly Ash and Lithium Salt on Restraining Alkali-aggregate Reaction
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细胞碱性磷酸酶反应呈阴性,表明细胞仍然处于骨生成细胞阶段。
The negative reaction with the alkaline phosphatase staining pointed out that these cells still belong to the osteogenic cells .
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结果表明:用柱层析分离由碱性氧化反应生成的儿茶素氧化产物。
The results of study show : Column chromatography was used to separate oxidation products of catechins produced in alkalescence condition .
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催化剂的碱性对反应起决定性作用,但催化剂的碱性太强则不利于反应。
The basicity of the catalyst was essential to the reaction , but on the catalyst showing higher basic strength , the activity of the reaction was not higher .
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Ba-La-O-(F)催化剂的碱性及其OCM反应性能
Basicity of Ba-La - O - ( F ) Catalysts and Their Catalytic Performances for the OCM Reaction
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用利福平(RFP)与牛血清白蛋白(BSA)在碱性条件下反应生成稳定的偶联物。
Stable Rifampicin ( RFP ) and bovine serum albumin ( BSA ) conjugate was prepared under the alkaline condition .
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N-(3-氯-2-羟基)丙基壳聚糖与β环糊精在碱性条件下反应制得了一种新型壳聚糖-g-β-环糊精(3),其结构经UVVis,IR和XRD表征。
A novel chitosan-g - β - cyclodextrin ( 3 ) was prepared from N - ( 3-Cl-2-hydroxyl ) propylchitosan and β - cyclodextrin under basic condition . The structure was characterized by UV-Vis , IR and XRD .
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利用常规分析方法对保定植物园土壤进行了主要特性指标的分析研究,结果表明:植物园土壤pH值偏高,呈微碱性-碱性反应,其中75%达到80以上;
According to convention analysis and study on the soil of the botanical garden of Baoding , It can be known that : pH values there are a little higher , so the soil is alkaline soil . 75 % of them are above 8.0 ;
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结果表明,乙二酸与焦化蜡油中碱性氮化物的反应是2级反应,二者反应分级数均为1级,反应的活化能为26.7kJmol,从而确定了该反应的动力学方程式。
The results show that the total reaction order of oxalic acid with basic nitrogen compound which are contained in the coking gas oil is 2 , and the order of tow reactants are 1 respectively . The reaction 's active energy is 26.67 kJ · mol - 1 .
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结果表明:反应在温度40℃条件下,10%氢氧化钠水溶液的碱性环境中反应3h后,室温条件下反应10-12h,效果最佳。
The results showed that it was an deal condition that the reactants reacted in the 10 % sodium hydroxide solution at 40 ℃ for 3 hours and reacted at room temperature for 10 ~ 12 hours .
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钍与五棓子酸在碱性溶液中反应的初步试验
The Preliminary Study of Reaction of Thorium with Gallic Acid in Alkaline Solution