Is a high-tech private enterprise, located in Laohekou City, Hubei Province, the main products are: 3,4 - dichloro-nitrobenzene; 3,4 - dichloroaniline; 2,4 - dimethyl-nitramine p; 2,4 - dimethylaniline; 2,6 - dimethyl-nitrobenzene; 2,6 - dimethylaniline; 3,5 - dimethyl-nitrobenzene; 3,5 - dimethyl Aniline; acrolein; Glutaraldehyde and other fine chemical products.

老河口聯(lián)誼化工有限公司為一家高科技民營(yíng)企業(yè)，位于湖北省老河口市日韩亚洲变态另类中文字幕，主要產(chǎn)品有：3A片免费视频无码毛片，4-二氯硝基苯；3黄色的网站免费观看视频在线，4-二氯苯胺ww69视频免费观看；2，4-二甲基硝基苯音影先锋在线；2爱爱无码免费视频，4-二甲基苯胺；2图片区亚洲电影小说区，6-二甲基硝基苯；2被操到喷水视频，6-二甲基苯胺色噜噜噜；3，5-二甲基硝基苯亚洲欧美一级a；3黄片理论，5-二甲基苯胺；丙烯醛欧美三级在线在线播放；戊二醛等精細(xì)化工產(chǎn)品国产色无码视频免费。

First, the preparation of l,2-dichloro-4-nitrobenzene, which l-chloro-4-nitrobenzene reacted with chlorine in a self-designed chlorinator, in presence of Lewis acid catalyst,.was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield of l,2-diehloro-4-nitrobenzene was 83.26%.

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Using solution culture experiment, discussed the influnce of nitrobenzene to the germinationrates and seedling growth of ten leguminous crops, and results showed that, when the nitrobenzeneconcentration was 1～100mg·L~(-1), it had little influnce to germination rates of leguminous crops,with the increasing of nitrobenzene concentration, emergence rates of leguminous crops decreased,but no significance compared with control, and found that the toxicity of nitrobenzene toleguminous related with the concentration, the thresholds of nitrobenzene toxicity to differentleguminous crops were different, under the test conditions, the inhibition of root was larger thanhypocotyl, according to the relationship between the inhition rates of root and hypocotyl length andthe nitrobenzene concentration, the sensitive order of the ten leguminous crops to nitrobenzenewas:small-seedsoybean＞kidneybean＞Dongnong42＞brownbean＞Dongnong49＞Dongnong46＞ormosia＞french bean＞black bean＞mung bean.

本研究探索了硝基苯對(duì)十種豆類作物的發(fā)芽率及幼苗生長(zhǎng)的影響AAA欧美色吧激情视频，結(jié)果表明：硝基苯濃度為1～100mg·L~(-1)時(shí)，對(duì)豆類作物發(fā)芽率影響不大黄色九九在线视频，隨著硝基苯濃度的增加野花官方app，豆類作物出苗率有所降低，但與對(duì)照差異不顯著十八岁在线观看的黄片，研究發(fā)現(xiàn)硝基苯對(duì)豆類作物的生物學(xué)毒性同濃度有關(guān)可以免费看的av网站，硝基苯對(duì)不同的豆類作物的毒害閾值不同欧美二区在线综合亚洲欧美网站。

The catalyst, palladium supported with chitosan condensated with salicylaldehyde, was studied in hydrogenation ofα-octene, nitrobenzene, 4-nitrophenol and m-dinitrobenzene, it was active and good selectivity forα-octene and nitrobenzene, when the activation time is 90 min, the catalyst showed the best hydrogenation active.

殼聚糖縮水楊醛負(fù)載不同比例PdCl_2的催化劑對(duì)α-辛烯、硝基苯欧美野外激情人成视频在线观看、4-硝基酚和間二硝基苯的催化性能進(jìn)行了研究免费黄色网站看亚洲，結(jié)果表明該催化劑活化90 min時(shí)加氫催化活性最好，對(duì)α-辛烯国产精品爱舒服，硝基苯的催化選擇性在催化5 h時(shí)達(dá)到了100%三级片黄色网站在线无码免费观看。

Humic acids, oxidizable fraction and lipids were the main fractions affecting the sorption capacity. The humic acids had the maximum adsorption capacity for nitrobenzene and aniline, the lipids naturally present in the soil strongly compete for hydrophobic sorption sites within the soil organic matter, and the adsorption capacity of mineral surface for nitrobenzene and aniline were only 2.31mg·kg-1 and 3.63mg·kg-1, respectively.

硝基苯和苯胺在濕地土壤中的吸附主要受腐殖酸、易氧化有機(jī)質(zhì)組分和脂類化合物的影響在线视频一区色，其中腐殖酸對(duì)硝基苯和苯胺具有最大的吸附容量欧美性人；脂類化合物表現(xiàn)為與硝基苯、苯胺競(jìng)爭(zhēng)土壤有機(jī)質(zhì)結(jié)構(gòu)中的吸附位點(diǎn)亚洲图区视频网，去除脂類化合物后殘余物的吸附量增大女人18毛片水真多在线视频；礦物組分對(duì)硝基苯和苯胺的吸附是次要的，吸附容量?jī)H為2.31mg·kg-1和3.63mg·kg-1小草亚洲无码不卡免费在线观看视。

The results of batch experiments showed that the anaerobic biodegradation kinetics of 2-CNB and 4-CNB by granular sludge were follwed by first-order reaction. The nitro groups of 2-CNB and 4-CNB were more easily attacked by electron than chlorines and they were reductively biotransformed to amino groups under anaerobic conditions. The acclimated anaerobic granular sludge, which could dechlorinate 4-chloroanline to aniline, showed that it had the ability of para-dechlorinating. The anaerobic biodegradating on pathway of 2-CNB and 4-CNB were suggested as follows:AbstractIn ZVI(zero-valent iron, Fe0)-reduction system, the nitro groups of 2-CNB and 4-CNB were reductively transformed to amino groups.

2分批試驗(yàn)結(jié)果證明欧美精品亚洲人成在线观看，顆粒污泥降解2-CNB和4-CNB遵循一級(jí)動(dòng)力學(xué)，在厭氧條件下99久久影院亚洲精品图片，CNB發(fā)生序列的硝基還原與脫氯作用黄片,男女大片,一级毛片,国产三级片，苯環(huán)上的硝基比氯原子更容易受到親電子攻擊，發(fā)生還原反應(yīng)生成氨基狼友视频在线观看免费；所獲得的顆粒污泥具有對(duì)位脫氯活性美国一级理论片在线看免费，可使4-CA進(jìn)一步脫氯形成苯胺。2-CNB和4-CNB厭氧降解的建議性途徑為： ZVI(Zero-valentiron)對(duì)2-CNB和4-CNB的作用主要是將苯環(huán)上的硝基還原為氨基黄色毛片精品尿尿视频；在ZVI與污泥共還原轉(zhuǎn)化體系中中文字幕第38页永久乱码，ZVI對(duì)氯代硝基苯的硝基轉(zhuǎn)化具有一定的促進(jìn)作用，但因ZVI對(duì)中間產(chǎn)物的吸附特性激情男女AA欧美，終產(chǎn)物形成速率趨慢欧美性爱一级在线观看。

First, by using p-methoxybenzaldehyde , p-hydroxybenzaldehyde and pyrrole as raw materials, 5-(p-hydroxyphenyl)-10,15,20-tri(p-methoxyphyenyl)porpyrin was prepares under acidity condition and the let reacted with benzoyl chloride, o-nitrobenzoyl chloride, m- nitrobenzoyl chloride and p- nitrobenzoyl chloride respectively under alkalinity condition with DMF as solvent.

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There are three different nucleophilic reagent respectively reaction with m-dinitrobenzene ramification at distint alkaline term:With the nitrobenzene 、 m-nirtobenzenesulfone sodium salt 、 2.4-dinitro chlorobenzene 国产精品久久久久电影院87、 m-dinitrobenzene for bottom thing, benzyl cyanide啪啪视频一区、 benzyl chloride、 benzyl chloropyridine特级女同一级毛片、is a nucleophilic reagent reaction for under the different term proceeds a series reaction. At the same time ,discuss about the impact factor to nucleophilicity such as the number of attract electron groupwww.毛片、 ability of attract electron and the nucleophilic substitution reaction part.

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The calculated results with B3LYP/6-31G-DFT show:(1)the molecular total energy of benzofuroxan is lower than that of o-dinitrosobenzene;(2)the activation energy(Ea+=51.0kJ/mol)of forward reaction that benzofuroxan isomerises into o-dinitrosobenzene,is in agreement with the experimental(58.6kJ/mol)provided by reference,and the activation energy(Ea-=4.6kJ/mol)of back-ward reaction is very small.It is concluded thereby that benzofuroxan is more stable than o-dinitrosobenzene.In addition,the corresponding ab initio calculations at the level of HF/3-21G,HF/6-31Gand MP2/6-31G//6-31G were completed,and it was found that the calculated results by B3LYP-DFT method are superior to those from ab initio calculation.

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The main research work of this dissertation is as follows: Based on the chemical reaction engineering theory and the nitrobenzene electroreduction mechanism, the plate and frame electrolyzer was designed and applied to the process of electroreduction nitrobenzene to p-aminophenol. This dissertation measured the residence time distribution data of the electrolyzer by means of the pulse response method and studied the rule of flow pattern along with the current capacity change. Under different conditions ,this dissertation studied the cyclic voltammetry properties of nitrobenzene on different electrodes by means of the dynamic cyclic voltammetry method and the electrode materials applied to the NB electroreduction have been selected primarily.Baseed on the results of cyclic voltammetry tests, this dissertation used p-electrode systems to measure the steady-state- polarization curves of nitrobenzene on different electrodes in H-type diaphragm cell, and obtained each primary factor s influence rule and the exchange current density value of each electrode.And then on the basis of the conclusions of fundamental researchs upword, the effects of influence factors on the the yield of p-aminophenol and the current efficiency,such as electrode material, current density, quantity of electricity circulated, nitrobenzene concentration . sulpuric acid concentration and so on, have been studied in detail in the systems of hign temperature , strong acidity and oxygen-poorthrough a series of electrolysis experiments in this paper.After all using Pb as anode Monel metal as cathode Dupont Nafion 417 cation-exchange membrane as membrane, this dissertation obtained the optimum technological condition: reaction temperature about 85C, current density 500A m-2, sulphuric acid concentration 20%wt.

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dinitrobenzene：二硝基苯

淮安疾控,健康熱線,12320,疾控中心,衛(wèi)生應(yīng)急本標(biāo)準(zhǔn)是為工作場(chǎng)所有害因素職業(yè)接觸限值配套的監(jiān)測(cè)方法,用于監(jiān)測(cè)工作場(chǎng)所空氣中芳香族硝基化合物 [包括硝基苯(Nitrobenzene)、二硝基苯(Dinitrobenzene)AAA免费黄色视频、二硝基...工作場(chǎng)所空氣有毒物質(zhì)測(cè)

dinitrobenzene：二硝基苯(各種異構(gòu)體)(皮)

二硝基甲苯酰胺 Dinimlmide | 二硝基苯(各種異構(gòu)體)(皮) Dinitrobenzene | 二硝基鄰甲酚(皮) Dinitro-o-cresol

D.N.B.; dinitrobenzene：二硝基苯

二硝丁基酚 dinitrobutyl phenol | 二硝基苯 D.N.B.; dinitrobenzene | 二硝基苯 dinitrobenzene

nitrobenzene：硝基苯

硝基苯(Nitrobenzene)無色或微黃色具苦杏仁味的油狀液體,難溶于水,易溶于乙醇在线免费观看aⅴ、乙醚、苯和油;遇明火一级做a爰片久久毛片首页、高熱會(huì)燃燒日韩精品青青久久久久久、爆炸,與硝酸反應(yīng)劇烈. 傾瀉在環(huán)境中的硝基苯,會(huì)散發(fā)出刺鼻的苦杏仁味,在80℃以上其蒸氣與空氣的混合物具爆炸性;傾倒在水中的硝基苯,

nitrobenzene nitrobenzol：硝基苯

溴化硝基苯 nitrobenzene bromide | 硝基苯 nitrobenzene; nitrobenzol | 硝基苯磺酸 nitrobenzenesulphonic acid

nitrobenzene poisoning：硝基苯中毒

nitrobenzal-acetophenone 硝基亞芐基乙酰苯 | nitrobenzene poisoning 硝基苯中毒 | nitrobenzoic acid 硝基苯甲酸

nitrobenzene bromide：溴化硝基苯

硝基苯甲醚 nitroanisole | 溴化硝基苯 nitrobenzene bromide | 硝基苯 nitrobenzene; nitrobenzol

dinitro benzol：二硝基苯

二硝基苯胺 dimtroaniline | 二硝基苯 dinitro benzol | 二硝基苯類 dinitrobenzenes

Trinitrophenylmethyl Nitramine：硝甲銨基三硝基苯

Trinitrobenzene 三硝基苯 ( 濕的 ) | Trinitrophenylmethyl Nitramine 硝甲銨基三硝基苯 | Triphenyl Phosphate 磷酸三苯酯

trinitrobenzene：三硝基苯 ( 濕的 )

Trimethylphosphite 亞磷酸三甲酯 | Trinitrobenzene 三硝基苯 ( 濕的 ) | Trinitrophenylmethyl Nitramine 硝甲銨基三硝基苯