查询词典 benzene-para-dicarboxylic acid

Linear alkyl benzenes and linear alkyl dimethyl benzenes, prepared by the alkylate reaction of linear alpha olefin with benzene or dimethyl benzene which were sulfonated by chlorosulfonic acid and then neutralized to produce linear alkyl benzene sulfonates and linear alkyl dimethyl benzene sulfonates.

本文以一定链长的直链α-烯烃分别与苯和混合二甲苯为原料制备了直链烷基苯和烷基二甲苯，经氯磺酸磺化，中和可得到具有一定链长的直链烷基苯磺酸盐和直链烷基二甲苯磺酸盐。

Maleic Anhydride is important organic raw material and the third biggest acid anhydride next to benzene anhydride and acid anhydride. In recent years, Maleic Anhydride is esterified and hydrogenised under pressure to make 1,4- butanediol butylene glycol, and it is also hydrogenised to tetrahydrofuran, which enables Maleic Anhydride to become the raw material for producing high-value-added products and to be more widely applied.

顺酐是重要的基本有机原料，也是世界上仅次于酸酐和苯酐的第三大酸酐，近年来，顺酐脂化低压加氢制1.4-丁二醇和顺酐加氢制四氢呋喃技术的开发成功，是顺酐成为生产高附加值产品的原料，应用领域有了更进一步的拓展。

PTA namely choice is right benzene 2 formic acid, it is the important raw material of chemical fibber industry.

PTA即精对苯二甲酸，是化纤工业的重要原料。

It also can be used as the controlling indicators for membrane bio-fouling in the prophase. When the bio-fouling membrane was anatomized, it shows that the bio-fouling membrane are meshy and coupling, whose primary ingredients are organics matter such as albumin, benzene ring, hydroxyl acid, fatty acid and so on, as well as microorganisms such as cocci, bacilli, leaf mold, alga and so on.

微生物污染解剖试验分析表明，严重的微生物污染薄膜成网状粘联结构，分析到的主要成分有白蛋白、苯环类、脂肪酸和芳香烃类等有机物，可观察到的微生物有球菌、杆菌、霉菌和藻类。

Amino-6-methoxy Benzothiazole 99%、2-Amino Benzothiazole 99%、Veratraldehyde 99%、Veratric Acid 99%、1,2- Dimethoxy Benzene 99%、6-Nitroveratric Acid 97%、2,5-Dichlorobenzoic Acid 99%、4-Chloro-3-Nitrobenzoic Acid 99%、 3-Nitrobenzole Acid 98%、p-Methoxybenzoie Acid 99%、Anisole 99.5%、p-Methoxyacetophenonc 99%、(2'-Chloroethyl) Benzene 99%、(2'-Bromoethyl) Benzene 99%、N,N-Diethyi-m-Toiuamide 99%、Aminoacetonitrile Hydrochloride 98%、 Alkyl Diphenyl Phosphate Estrel 98%、5-Chloro-2-benzothiazolone 99%、6-bromo-2-naphthol 98%、6-Nitro-Veretric Acid Estrel 97%、4-chloro phenoxyaeetic 99

2-氨基-6-甲氧基苯骈噻唑、2-氨基苯骈噻唑、藜芦醛、藜芦酸、藜芦醚、6-硝基藜芦酸、2，5-二氯苯甲酸、3-硝基-4-氯苯甲酸、3-硝基苯甲酸、对甲氧基苯甲酸、苯甲醚、对甲氧基苯乙酮、β-氯代苯乙烷、β-溴代苯乙烷、N，N-二乙基间甲苯甲酰胺、氨基乙腈盐酸盐、磷酸二苯月桂酯、5-氯-2-苯骈噻唑酮、6-溴-2-萘酚、6-硝基藜芦酸甲酯、4-氯苯氧乙酸

Good thermal stability, High mechanical strength.Used as catalyst or catalyst carrier in the manufacturing of the important industrial products, such as cyanuramide, benzene anhydride, maleic acid anhydride, butadiene rubber, acrylic nitrite, etc.

用途：本产品在三聚氰胺、苯酐、顺丁烯二酸酐、顺丁橡胶、丙烯腈等重要工业品生产中用作催化剂及催化剂载体，也广泛用于石化产品的精制脱除芳烃，也可用于有机气体、液体的选择性吸附分离及离子交换脱除水中多价有害元素等。

The main compositions of LPs include shorter chain carboxylic acid derivatives, furan derivatives, cyclopentanone, phenol derivatives, benzene derivatives, cinnamic acid derivatives, longer chain carboxylic esters and sterides.

秸秆在亚/超临界醇中液化产生的LPs的主要组成成分包括短链脂肪酸衍生物、呋喃衍生物、环戊酮衍生物、含有取代基的肉桂酸衍生物、芳醛或酮衍生物、苯酚衍生物、苯衍生物，长链脂肪酸衍生物和甾族化合物。

Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.

对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸；再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯；以氟化钾为氟化剂，环丁砜为溶剂置换氟化，再与甲醇酯化得到四氟对苯二甲酸甲酯；以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇；以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物；在乙醇溶液中经镁粉还原得到4-甲基-2，3，5，6-四氟苄醇；甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯，总收率达43.6%。

Two new complexes, [Mn22(H2bta)2(H2O)]n (1) and [Cu2(H2bta)0.5(H2O)]n (2)(H4bta＝1,2,4,5-benzene- tetracarboxylic acid, L＝imidazo[4,5-f][1,10]phenathroline) were prepared under hydrothermal conditions and their structures determined by single-crystal X-ray diffration.

在水热条件下合成了两个新的配合物，[Mn22(H2bta)2(H2O)]n和[Cu2(H2bta)0.5(H2O)]n，其中(H4bta=1，2，4，5-benzenetetracarboxylic acid， L= imidazo[4，5-f][1，10]phenathroline )，通过单晶X射线衍射仪对其结构进行了测定。

Meldrum is a carboxyl-phthalocyanine weak resistance agent, with the activity of this enzyme metal ion (Mg2 + Mg2 +) formed fairly stable chelate, and its derivatives benzene methyl malonic acid is a strong resistance agent.

丙二酸是一个羧基酞酶的弱阻化剂，它与这种酶的活性金属离子(镁离子Mg2+)形成相当稳定的螯合物，而它的衍生物苯甲基丙二酸则是一个强阻化剂。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。