A series of important basic and fine chemical products (such as 1,4-butyl -glycol,γ-butyrolactone, tetrahydrofuran, fumaric acid and tetra-hydride pa)can be produced when maleic anhydride is used as the raw material.

以順酐為原料還可以生產(chǎn)1，4-丁二醇欧美日韩视频在线免费观、γ-丁內(nèi)酯狼狼狼色精品视频在线播放、四氫呋喃、富馬酸和四氫苯酐等一系列重要的基本化學(xué)品和精細(xì)化學(xué)品等一级日本。

There are several methods of industrial production of fumaric acid.

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Objective］ The aim was to study the effects of pH value on adsorption of basic resin on fumaric acid.

［目的］研究pH值對(duì)堿性樹(shù)脂吸附富馬酸的影響。

A salt or ester of fumaric acid .

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Fumaric acid, which is considered as an important platform compound and fine chemical, has been widely used in many fields such as materials, medicine, foods, feeds and so on.

富馬酸是一種重要的平臺(tái)化合物和精細(xì)化學(xué)品久久久久久精品毛片免费不卡，廣泛應(yīng)用于材料、醫(yī)藥一级一级一级毛片黄、食品及飼料添加劑等領(lǐng)域色本色网无码在线，市場(chǎng)潛力巨大。

The quantity of fumaric acid in Sukebing oral liquid was analyzed with the method of thin layer scan.

采用薄層掃描法對(duì)速克痛口服液中反丁烯二酸進(jìn)行定量分析欧美日韩视视频免费午夜在线观看，平均回收率 96 超级美女免费黄色视频。

In this paper, the complexation of poorly water-soluble fumaric acid withα-CD,β-CD and HP-β-CD were investigated respectively.

因此，增加富馬酸的水溶性欧美老妇交乱视频免费，對(duì)拓寬富馬酸的應(yīng)用范圍具有重要的意義激情图片激情小说用什么软件看。

Such polymers shall contain grafted fumaric acid at levels not to exceed 2 percent by weight of the finished polymer.

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The results showed that fumaric acid is most favorable to prepare MnO2 sol.

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Carbohydrates such as sucrose, glucose, maltose fermentation by Hagan may also be obtained fumaric acid.

碳水化合物如蔗糖妇女满足农民工精彩的毛片、葡萄糖国产91页、麥芽糖經(jīng)黑根菌發(fā)酵也可制得反丁烯二酸。