查询词典 oxalate

The coordination mode of La can be described as a distorted aquare antiprism, which was completed by two oxygen atoms from one oxalate, four oxygen atoms from four different PDC ligands, and two oxygen atoms from two water molecules.

La呈现四方反棱柱体的配位模式，分别和2个来自同一个草酸配体的氧原子、4个来自4个PDC配体的氧原子以及2个来自2个配位水分子的氧原子配位。

Calcium oxalate crystal is the irritant component in some herbal drugs which come from Araceae plants.

天南星科部分具有刺激性毒性作用的中药中所含的草酸钙针晶是其刺激性成分。

The effects of ESPS before and after degradation on crystal growth of calcium oxalate were investigated in vitro. The size and number of CaOxa crystals induced by degraded ESPS were much smaller than those of the undegraded polysaccharide, and the edges and angles of the former were much rounder and blunter.

同时，用体外模拟方法研究了降解前后ESPS对草酸钙晶体生长的抑制作用，降解后的ESPS明显优于未降解多糖，其诱导生成的一水草酸钙晶体尺寸进一步减小，晶体数量减少，且棱角更为圆钝。

Under the catalysis of rare earth composite solid superacid SO42-/ZrO2-La2O3,reaction of a-pinene and anhydrous oxalic acid afforded bornyl oxalate smoothly. Followed by saponification reaction, borneol was obtained selectively.

在稀土复合固体超强酸SO42-/ZrO2-La2O3的催化下， a -蒎烯与无水草酸的反应能顺利生成草酸龙脑酯，经皂化反应后，能选择性地合成正龙脑。

In this experiment, high quality PTC powder was prepared by oxalate coprecipitation process.

本实验采用草酸盐共沉淀法制备含掺杂物的高性能PTC粉体。

DBP and DEHP have the similar photodegradation mechanism. The predominant pathway for DBP and DEHP photodegradation in the Fe -oxalate complexes system is hydroxyl radical extracting H atom in α-position of the aliphatic chain close to the carboxyl group followed by oxidation to produce alcoholized derivatives ROH. ROH then breaks down to phthalic acid and dialcohol that will be further oxidized up to mineralization.

DBP和DEHP的光降解历程相似，主要反应途径是OH自由基提取烷基上与羧基相连的α-H原子，然后被氧化生成醇衍生物，再分解成为酞酸和二醇，酞酸经历开环和进一步脱羧，二醇可以被氧化成为低级烷基羧酸，直至矿化。

Dibenzyl oxalate was synthesized from oxalic acid, potassium hydroxide and benzyl bromide under microwave irradiation using tetrabutylammonium bromide as phase-transfer catalyst and polyethylene glycol-200 as solvent.

在微波辐射条件下，以草酸、氢氧化钾和溴化苄为原料，四丁基溴化铵为相转移催化剂，聚乙二醇200为溶剂合成了草酸二苄酯，并通过熔点和红外光谱对产物的结构进行了表征。

The effect of the series of dicarboxylic acids and metal ions on the crystallization of calcium oxalate was investigated in silica gel system.

本文在硅胶体系内，研究了不同二元羧酸及金属离子对CaOxa晶体生长的影响。

CO is used to produce formate,formic acid and oxalic acid by reacting with alkaline,in which the CO usually from coal vaporization is replaced by the CO from tail gas of yellow phosphorus production,by-reaction between thermal phosphoric acid and formate or oxalate to produce formic acid or oxalic acid,and by product dihydric phosphates.

提出用生产黄磷尾气中的CO与碱反应生产甲酸盐甲酸草酸，或利用热法磷酸和甲草酸盐反应生产甲酸草酸并副产磷酸二氢盐，继续加工可制得磷酸盐系列和碳一化工系列产品分析该磷化-碳一化工产业在节能减排降低投资与生产成本方面的优势，并简述了黄磷尾气杂质对产品质量的影响及尾气的净化方法

The catalytic performance of copper-nickel oxalate catalysts prepared by concurrent coprecipitation was studied in the gas-phase reaction of p-cymene synthesis by dehydrogenation of industrial dipentene.

研究了并流共沉淀法制备的草酸铜-草酸镍催化剂在工业双戊烯脱氢合成对伞花烃气相反应中的催化性能。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。