查询词典 oxalic

Analysis of the treated aqueous solution was conducted with GC-MS,and the main intermediates during phenol degradation were isobutyric acid,malonic acid,benzoquinone,butenoic acid,oxalic acid,maleic acid,succinic acid,hydroquinone,catechol and resorcin.

利用GC-MS分析了苯酚降解主要中间产物为异丁酸、丙二酸、对苯醌、丁烯酸、乙二酸、顺丁烯二酸、丁二酸、邻苯二酚、对苯二酚及间苯二酚等，并据此推测了苯酚电催化氧化的可能反应途径。

IrO2--Ta2O5 oxide anode was prepared by coating oxide on titanium substrate which has been pretreated by sandblast and oxalic acid etching.

钛基体涂覆铱钽氧化物阳极制备过程中对基体喷砂并进行不同时间的草酸浸蚀。

The product of high-purity strontium oxide can be acquired after stoving and burning the precipitate of high-purity strontium oxalate,which is formed by means of adding high-purity oxalic acid under the condition of appropriate pH range.

以分析纯硝酸锶为原料，采用硝酸锶分次重结晶同时加入适量的硫酸除去钡及其它杂质，加入适量草酸除去钙杂质，然后选择合适的pH值加入高纯草酸制得高纯草酸锶沉淀，经烘干灼烧后得到高纯氧化锶产品。

Esterification of terpineol with oxalic acid, chloroacetic acid and trichloroacetic acid by solid superacid MoO3/TiO2 was studied.

研究了MoO3/TiO2固体超强酸催化剂催化松节油与草酸，氯乙酸，三氯乙酸反应的规律。

The corrosion behavior of sintered NdFeB in nitric acid,hydrochloric acid,vitriol,phosphate and oxalic acid was studied.

研究了烧结钕铁硼在硝酸、盐酸、硫酸、磷酸及草酸介质中的腐蚀特征。

In order to study the effects of acid catalysts on wood liquefaction in phenol, the liquefaction of wood powder from Chinese fir and poplar in the presence of phenol using several relatively weak acids as catalysts, such as phosphoric acid (85%), sulfuric acid (36%), hydrochloric acid (37%) and oxalic acid (99%), were investigated.

为了探讨酸性催化剂对木材苯酚液化的影响，该研究采用磷酸(85%)、低浓硫酸(36%)、盐酸(37%)、草酸(99.5%)4种弱酸性无机酸，在不同温度下进行了木材的液化试验。

Pretreatment of wood chips with dilute oxalic acid solution for about 10 minutes reduces electrical energy requirements for mechanical pulping by 25%, improves paper strength properties, reduces pitch content, improves dewatering, and produces value-added chemicals enabling a biorefinery dimension.

将木片用稀草酸溶液预处理10分钟减少木浆电能源需求的25%，提高纸张强度性能，降低了沥青含量，提高了脱水，并精炼厂产生增值化学品。

" Oxalic acid: Colourless, crystalline, toxic carboxylic acid found in many plants, especially rhubarb, wood sorrel, and spinach."

草酸：无色结晶有毒的羧酸类有机化合物。许多植物中有草酸，尤其是大黄、酢浆草和菠菜。

The simultaneous determination of organic acids, such as oxalic acid, aconitic acid, malic acid and citric acid by capillary electrophoresis was discussed.

研究了毛细管电泳法分离测定草酸、乌头酸、苹果酸、柠檬酸等有机酸的条件。

With sulfosalicylic acid, oxalic acid or salicylic acid used as additives, the isolated yield of adipic acid increased with increasing reaction time, but after 6 h, it did not increase obviously.

当使用磺酸水杨酸、草酸、水杨酸为有机酸性添加剂时，随反应时间的增加，己二酸分离产率均升高，但反应6 h以后，己二酸分离产率随时间的变化不明显。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。