查询词典 acid reaction

The effect of cyclopentene concentration palladium salts, FePc, acid and reaction mechanism were discussed.

在乙腈的酸性水溶液中，考察了 Pd Ac2 /Fe Pc催化氧化环戊烯合成环戊酮的催化活性，讨论了影响该反应活性的因素及其反应机理。

With the phenol sulfuric acid method determines Cynomorium songaricum Rupr polysaccharide, OH was produced by Fenton reaction, and O2(superscript -) was produced by the oxidation of pyrogallic.

实验中采用苯酚－硫酸法测定锁阳多糖，在自由基由Fenton体系产生，超氧自由基O2(上标-由邻苯三酚自氧化体系产生。

Based on airpollution reports on this area, this paper concluded therelic-corrosion mechanism and phenomenon by dust, the relicserosion and reaction by acid rain, inorganic relic rustingand organic relic decolour by SO[,2],NO[,2],CO[,2],O[,3], andother g

该文根据近年来关于大气环境污染的报导，着重论述了尘埃对文物损害的机理和现象，酸雨对文物的腐蚀过程和反应机理，以及SO[，2]，NO[，2]，CO[，2]和O[，3]等气态污染物使无机质文物老化、生锈，有机质文物脱色、褪色的原因。

Based on airpollution reports on this area, this paper concluded therelic-corrosion mechanism and phenomenon by dust, the relicserosion and reaction by acid rain, inorganic relic rustingand organic relic decolour by SO[,2],NO[,2],CO[,2],O[,3], andother

该文根据近年来关于大气环境污染的报导，着重论述了尘埃对文物损害的机理和现象，酸雨对文物的腐蚀过程和反应机理，以及SO[，2]，NO[，2]，CO[，2]和O[，3]等气态污染物使无机质文物老化、生锈，有机质文物脱色、褪色的原因。

In order to advance the viscosity of acidizing fluid and decrease the reaction speed of acidizing fluid in oil formation,adopt the method of opposite phase emulsim polymerization synthetised an acidizing fluid densifier,it called TP-1,its molecular weight is(800～1100)×10.laboratory findings discovers the acid dissolving time of TP-1 is smaller than 10 min,its dissolv...

性能评价试验结果显示，稠化剂TP-1的酸溶时间小于10 m in，具有很好的溶解能力；TP-1对酸液的增黏作用明显，(4%TP-1+20%HC l)酸溶液90℃下表观黏度达到46 mPa.s，120℃下表观黏度27 mPa.s。同时TP-1表现出较强的耐剪切能力和良好的配制稳定性，有利于酸化措施效果的提高。

Methods: In alkaline condition, reaction between amino acids and phenylisothiocyanate formed a derivant of phenylisothiocyanate-amino acid. For RP-HPLC, the Diamonsil C18 column 250 mm×4.6 mm,5 μm） and binary gradient elution were used. The mobile phase A was 0.1 mol/L sodium acetate solution-acetonitrile (93∶7） and the mobile phase B was acetonitrile-water（80∶20）. The detecting wavelength was 254 nm.

在碱性条件下，氨基酸与异硫氰酸苯酯反应，生成异硫氰酸苯–氨基酸的衍生物，采用 Diamonsil C18色谱柱（250 mm×4.6 mm，5 μm），用二元梯度洗脱方式，流动相A为0.1 mol/L乙酸钠–乙腈（93∶7），流动相B为乙腈–水（80∶20），检测波长254 nm。

DFA-PEG polyester was synthesized with DFA and PEG 400 at first, and then bysulfating DFA-PEG polyester with NH_2SO_3H or terminating DFA-EG polyester withrosin acid, two derivant, these are sulfated DFA-PEG polyester and terminateDFA-PEG polyester, were synthesized. The reaction conditions of synthesis wereoptimized by orthogonal experiments.The molecular weight of product was analyzed by GPC.

5以二聚脂肪酸和聚乙二醇400为原料，首先合成了DFA-PEG聚酯，再以DFA-PEG聚酯为衍生体，硫酸化或用松香封端，合成了两种DFA-PEG聚酯衍生物——DFA-PEG聚酯硫酸酯盐和松香酸封端DFA-PEG聚酯，通过正交试验，对合成的条件进行了优化。

A new method for preparing sodium diacetate by one step reaction based on acetic acid and sodium carbonate was studied.

介绍了以醋酸和纯碱为原料，不加任何溶剂，采用一步法合成新型防腐剂双乙酸钠的新工艺，确定了最佳工艺条件：n：n为(4.0～4.2)：1；反应温度60～70℃；反应时间120～180min；醋酸加料时间40～60min，所得产品质量合格，收率可达96％以上。

A small molecule core (TMP-SK3)with three terminal carboxyl groups was synthesized successfully by the reaction of 1,1,1-trihydroxymethylpropane with the excessive sebacic acid diacetic anhydride.

以1，1，1-三羟甲基丙烷与过量癸二酸二乙酸酐反应，制得了端羧基的三官能度小分子核三癸二酸三羟甲基丙烷酯（TMP-SK3）。

It is found that the indirect electroreduction of maleic acid to butane diacid was achieved by Ti~/Ti~ redox system on the nanocrystalline TiO2 film surface, the electrode reaction mechanism is the called catalytic mechanism.

其中TiO_2/Ti_2O_3电对对马来酸具有异相电催化还原活性，纳米TiO_2膜中的Ti~/Ti~氧化还原电对作为媒质间接电还原马来酸为丁二酸，反应机理为电化学偶联随后化学催化反应机理。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。