• A method for analysis of thiophene-2,5-dicarboxylic acid by ion pair reversed-phase HPLC was described.

    建立测定噻吩-2,5-二羧酸离子反相高效液相色谱(HPLC)。

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  • Adipic acid is the most important dicarboxylic acid, and it is a valuable raw material used in the chemical industry.

    己二工业上重要脂肪族二元羧酸,是重要的有机化工原料

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  • This paper reports the synthesis of a series of poly (silyl ester)s by diacetoxylsilane with several dicarboxylic acid.

    本文主要是以二乙酰氧基硅烷二元羧酸进行缩聚反应,合成一系列硅基

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  • The current topical areas focus on the rigid aromatic multicarboxylate ligands, such as benzene dicarboxylic acid and benzene tricarboxylic acid.

    目前,这方面的研究主要集中甲酸,均苯三甲酸等刚性芳香羧酸体。

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  • The COD of the tridecane dicarboxylic acid wastewater is high about ten thousands, and there is high concentration sodium sulfate in the wastewater.

    十三碳二元酸生产中有机废水COD高达上万,且含有高浓度硫酸钠

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  • The dioctyl glutaricate was prepared by esterification of octyl alcohol and glutaric acid separated from dicarboxylic acid in catalysis of sulfuric acid.

    辛醇和羧酸分离为原料,硫酸催化剂酯化合成了戊二酸二辛酯。

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  • The binary and ternary solid complexes of rare earth Eu3+ and La3+ with pyridine-2 , 6-dicarboxylic acid(H2DPC) and 1, 10-phenanthroline are synthesized.

    合成稀土吡啶-2,6甲酸形成二元配合铕与邻菲罗吡啶-2,6二甲酸形成的三元配合物。

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  • The formulation comprises a glyphosate or a salt, ester or other derivative thereof, a dicarboxylic acid or a derivative thereof, and a pharmaceutically acceptable vehicle.

    这种配方构成包括草甘膦或者草甘膦的其他产物,一种二羧酸或者产物,以及一种制药可接受载体

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  • Pyridine-2,3-dicarboxylic anhydride, a key intermediate of the herbicide imazapyr, was synthesized from pyridine-2,3-dicarboxylic acid and anhydride according to the methods in the patents.

    吡啶羧酸新型广谱除草剂灭草烟重要中间体,文献所介绍的合成方法是以2,3-吡啶二羧酸乙酸酐反应制得。

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  • In the acidic aqueous solution of copper sulfate, pyridine-2,3-dicarboxylic acid was synthesized by oxidizing quinoline with sodium chlorate, and the yield of the product could reach 56.4%.

    硫酸铜酸性水溶液中,氯酸钠作氧化剂,氧化喹啉得到2,3-吡啶二甲酸产率为56·4%;

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  • The reaction with dicarboxylic acid anhydrides results in an acid addition product, which alters the ratio of free basic to free acidic groups in gelatin, so as to lower the isoelectric point.

    而二元酸酐酰化反应改变氨基、羧基比例从而降低明胶等电

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  • The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.

    对乙酰氧基苯甲酸、对苯二酚二乙酯、2,6-甲酸间苯二甲酸四种单体通过熔融缩聚反应,合成了芳香族四组分共聚酯

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  • The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.

    对乙酰氧基苯甲酸、对苯二酚二乙酯、2,6-甲酸间苯二甲酸四种单体通过熔融缩聚反应,合成了芳香族四组分共聚酯

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