1、

Traditional processes of preparation of oxalic acid and oxalate were introduced.

简述草酸及草酸酯合成的传统方法.

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2、

A comprehensive review is given about the determination of oxalic acid and calcium.

综述了近四年国内草酸和钙离子的常用测定方法.

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3、

It determines to be the structure of oxalic acid by IR spectrum and melting point.

以红外光谱及熔点确定了产物的结构.

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4、

The preparation method of oxalic acid from plant fibre sunflower shell by hydrolysis-oxidation-hydrolysis was investigated.

研究了以植物纤维向日葵壳为原料,采用水解 - 氧化 - 水解法制取草酸(乙二酸)的新工艺.

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5、

Oxalic acid electrochemical reduction techniques to produce glyoxalic acid is quite an ideal preparation method.

草酸电解还原生产乙醛酸技术是比较理想的制备方法.

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6、

Oxalic acid is always formed during the reaction.

在反应过程中,乙二酸总是会生成的.

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7、

The yield of oxalic acid dihydrate is up to 80 % under the optimum condition.

确定了最佳工艺条件,在此条件下,草酸二水合物收率可达80%.

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8、

Applied circumstances of oxalic acid and its products is summarised.

总结了草酸及其产品在国内外的应用情况.

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9、

Oxalic acid , also known as acid, and its compounds have widespread industrial applications in several fields.

草酸是一种重要的化工原料,在化工生产的许多领域均有应用.

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10、

The determinations of oxalic acid are aqueous titration, chromatography, fluorimetric method, et al.

其中,草酸的测定方法有滴定法 、 色谱法 、 荧光法等.

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11、

The aperture and porosity are compared which in sulfuric acid and oxalic acid by SEM.

在扫描电镜的帮助下还比较了在草酸和硫酸电解液中形成膜的孔径和孔隙率的大小.

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12、

The oxalic acid solution can be re-used through displacement for reducing the cost.

置换后草酸溶液循环使用,降低了成本.

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13、

Determination of palladium in catalyst of synthetic oxalic ester by flame atomic absorption spectrometry was studied.

本文研究了火焰原子吸收光谱法测定合成草酸酯催化剂中钯.

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14、

Glycol is oxidized rapidly by it to oxalic and glycolic acids.

乙二醇迅速地被它氧化,生成草酸和羟基醋酸.

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15、

The ceriumterbium coprecipitation oxide was prepared using oxalic acid and cerium chloride.

采用氯化铈铽水溶液与草酸为原料,合成了铈铽共晶氧化物.

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16、

The oxalic acid was cauterize in the muffle at 200 ℃ until fully volatilized. The solution pH was adjusted with drop ( 1+ 1) hydrochloric acid ( the congo red test paper change color from red to blue) to about 4 to remove carbon dioxide.

在马弗炉(200℃)灼烧至草酸全部挥发,滴加(1+1)盐酸,使刚果红试纸由红变蓝色(或调节pH到4左右),除去二氧化碳。

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17、

Sodium diethyl oxalacetate was prepared by Claisen condensation with acetic and oxalic acid esters.

以乙酸乙酯和草酸二乙酯为原料,经交叉Claisen酯缩合反应合成钠代草酰乙酸乙酯。

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18、

In dodecyl amine system, oxalic acid can be as the effective modifier to float feldspar from quartz in dodecyl amine system at pH2.

草酸可以作为在十二胺体系中,在强酸性条件下,实现长石与石英的浮选分离的有效调整剂。

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19、

The effects of propanedioic acid, succinic acid, hexanedioic acid, sebacic acid and oxalic acid on floatation performance of feldspar and quartz in dodecyl amine system were investigated.

在十二胺捕收剂体系中,研究了丙二酸、丁二酸、己二酸、癸二酸和草酸对长石和石英浮选行为的影响。

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20、

The process conditions of acetylene catalytic oxidation for producing oxalic acid was studied.

对乙炔催化氧化制备草酸的工艺条件进行了研究,用正交设计安排实验,得到了一组最佳工艺条件,并做了验证实验.

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