查询词典 iodic anhydride

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。

In this paper, the authors reported that generated iodic acid in process of indirect electrolysis method to preparating dialdehyde starch can easily be regenerated to per iodic acid .

本文报导以高碘酸为媒质间接电合成双醛淀粉过程生成的碘酸电极氧化再生高碘酸的电流效率与电极材料、电解条件等的关系，从而为其媒质再生的研究提供依据

The disinfection of the hand, can wash his hands via water of commonly used flow, soap, in anteprandial, hind, after the contact pollutes article, had better use contain 250 - disinfectant of 1000mg ∕ L1210 or 250-1000mg ∕ L are effective disinfectant of carry out hand disinfects iodic iodic bend over or the town that use classics sanction.

手的消毒，可经常用流动水、肥皂洗手，在饭前、便后、接触污染物品后最好用含250－1000mg∕l1210消毒剂或250-1000mg∕l有效碘的碘伏或用经批准的市售手消毒剂消毒。

Material and method 1.1 tests data 10% get together dimension ketone iodic ointment (Guangzhou Bai Yunshan external use pharmaceutical factory), solution of 0.5% iodic bend over (luxuriant name disinfects pharmaceutical factory), silver of 10% sulphanilamide pyrimidine is mixed hang fluid (make up by oneself [7]), new Zealand hare . 1.2 pollution achieve a face to build model and experiment of bacterium of different remedy curb to regard the place that cause an injury as back of 36 New Zealand hare.

概要： 为适应战场成批烧伤救治的需要，在现有探究的基础上[1-6]，作者进行了三种烧伤外用药对烧伤创面处理的效果探究，以期获得对创面保护功能好、抗菌效果可靠的用药和处理方法。1材料和方法1.1实验材料10%聚维酮碘软膏，0.5%碘伏溶液，10%磺胺嘧啶银混悬液(自行配制[7])，新西兰兔。1.2污染创面造模和不同药物抑菌试验将36只新西兰兔背部作为致伤部位。

In 1999, the national production capability of maleic anhydride is 166000 ton and the actual production is more than 100000 ton, With the rapid development of national economy, the down-stream products of maleic anhydride are being used in more and more fields and the market demand of maleic anhydride is increasing day by day.

随着国民经济的快速发展，顺酐下游加工产品的应用领域不断扩大，市场对顺酐原料的需求量也昌逐增长。

The invention relates to polyimide molding powder with low melt viscosity and a preparation method, which uses 3,4'- diamino diphenyl ether, 3,3',4,4'-diphenyl ketone dicarboxylic anhydride, 3,3',4,4'-biphenyltetracarboxylic dianhydride, 3,3',4,4'- triphenyl diether dicarboxylic anhydride, 3,3',4,4'- diphenyl ether dicarboxylic anhydride and other monomers to polymerize at 100 to 140 DEG C, to get molding powder with a melt viscosity in the range of 1000Pa.s to 5000Pa.s.

本发明属于一种低熔体粘度聚酰亚胺模塑粉及制备方法，是采用3，4′-二氨基二苯醚同3，3′，4，4′-二苯酮四酸二酐、3，3′，4，4′-联苯四酸二酐、3，3′，4，4′-三苯二醚四酸二酐、3，3′，4，4′-二苯醚四酸二酐等单体在100～140℃聚合，获得熔体粘度在1000Pa.s～5000Pa.s范围内的模塑粉。

In this paper the study on optimizing the esterification of cellulose and some character of CAB(the degree of substitution of cellulose, solubility, the thermal properties and molecular weight) was discussed. The mechanism of the esterification of cellulose in butyric acid/ acetic acid/ butyric anhydride which comprises the creation of the acetic butyric anhydride, acetyl cation and butyryl cation was investigated by the study of the effect of the content of the organic acid and anhydride on the degree of acetyl and butyryl substitution of cellulose.

最后本文根据纤维素在丁酸/乙酸/丁酸酐中的酯化反应中有机酸以及酸酐的添加量对最后产物纤维素醋酸丁酸酯中乙酯或者丁酯取代度的影响，提出纤维素在丁酸/乙酸/丁酸酐中的酯化反应经历一个混和酸酐以及乙酰碳正离子、丁酰碳正离子的生成过程。

Cis-butendioic anhydride, benzoic acid and phthalide in light fraction column T201 were removed on the column top, the overhead component: benezene anhydride 25.74%, cis-butendioic anhydride 39.11%, benzoic acid 25.37%, phthalide 9.78%.

轻组分塔T201中顺酐、苯甲酸、苯酞都在塔顶被除去，其中塔顶组成：苯酐25.74%，顺酐39.11%，苯甲酸25.37%，苯酞9.78%。

In the second part, quantum chemical AM1 methods were employedto theoretically investigate the electronic structures of maleic anhydride in ground- and excited-states. On basis of the frontier orbital theoryand three bonding principles, the possibility of reaction of active α-hydroxysuccinic anhydride carbanion and active α-hydroxy-succinic anhydride radical on polymerization process of MArespectively by alkali catalyst and by hydroxyl radical was discussed. Theanionic and radical polymerization of MA discussed also. Theoreticalstudies show that both polymerization products of MA are in the chainstructures, corresponding to the experimental findings.

第二部分用量子化学AM1方法，计算研究了马来酸酐的基态和激发态电子结构；应用前线轨道理论和成键三原则分别探讨了碱催化条件下和羟基自由基引发下马来酸酐均聚合过程中α-羟基丁二酸酐碳阴离子和α-羟基丁二酸酐碳自由基活性中间体参与反应的可能性及由它们引发的马来酸酐阴离子聚合反应机理和自由基引发聚合反应机理；理论研究表明马来酸酐的均聚合产物均为链式结构，与实验事实相相符。

A series of imides oligomers were synthesized with the phenylethynylphthalic anhydride , nadic anhydride and cyanophthalic anhydride as endcapped agents.

我们以苯乙炔苯酐、降冰片烯二酸酐和氰基苯酐为封端剂合成了一系列的酰亚胺低聚物。

But this model is now in danger of outliving its usefulness.

但这种发展模式正面临丧失效力的风险。

To be brighter in the images and are now visually distinguishable.

to是明亮在图象并且现在是视觉上可区分的。