碳酸钠

Aspirin is synthesized through O-acylating reaction from salicylic acid and anhydride acetic acid with anhydrous sodium carbonate as catalyst.

以水杨酸和乙酸酐为原料，采用无水碳酸钠作为催化剂经O-酰化反应合成了阿司匹林。

After the studies of basic material, citric acid/sodium carbonate, OBSH and Azodicarbonamide were used as foam agents of starch, fiber reinforced starch and starch/PVA blends. The expansion ratio and foam frame of the foams was studied.

在基础材料研究基础上，采用柠檬酸／碳酸钠、OBSH和AC发泡剂对淀粉、纤维增强淀粉和淀粉／PVA共混体系进行了挤出发泡研究，并就体系的发泡倍率和泡孔结构进行了研究。

The optimal conditions determineded by experiments were as follow: chloracetic acid : sodium carbonate : isopropyl xanthate : ethylamine=l : 0.58 : 1 : 1.05, water usage is 30 ml/O.lmol chloracetic acid, esterification temperature was 80癈, esterification time was 2h, ammonolysis temperature was 70 C, ammonolysis time was Ih.

实验得出最佳工艺条件为：一氯乙酸：碳酸钠：异丙基黄药：乙胺=1：0.58：1：1.05，水用量为30 ml／0.1mol一氯乙酸，酯化温度80℃，酯化时间2小时，氨解温度70℃，氨解时间1小时。

Nano-cobalt blue precursor was prepared by mixing two types of microemulsion solutions of oleic acid/butanol/sodium carbonate solution and oleic acid/butanol/sodium hydroxide solution for reaction, into which Co~(2+) and Al~(3+) were solubilized respectively.

将Co2+和Al3+分别溶于油酸/正丁醇/碳酸钠水溶液和油酸/正丁醇/氢氧化钠水溶液制成微乳液，再将2种微乳液混合，反应生成纳米钴蓝前驱体。

Content of the project: utilize CO2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc.

项目介绍：项目内容：利用二氧化碳资源，新建碳酸二甲酯、颗粒干冰粉、水杨酸、轻质氧化鲜、碳酸钠、乙撑脲生产线。

Content of the project: utilize CO2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc.

项目内容：利用二氧化碳资源，新建碳酸二甲酯、颗粒干冰粉、水杨酸、轻质氧化鲜、碳酸钠、乙撑脲生产线。

A series of perovskite oxides are synthesized by means of blend deposition using the nitrate of A and B as the raw materials, and ammonia or sodium carbonateas sedimentation .A includes alkaline-earth metals such as Mg, Ca, Sr, Ba and rare-earth metalsLa; while B includes transition metal Cr, Mn, Fe, Co and Ni.

本文以A，B的硝酸盐为原料，以氨水或碳酸钠为沉淀剂，利用混合沉淀的方法合成了系列钙钛矿型氧化物。A选碱土金属元素Mg、Ca、Sr、Ba等及稀土金属元素La；B选过渡金属元素Cr、Mn、Fe、Co、Ni等。

Oxygen,nitrogen,liquid oxygen,liquid argon,hydrogen peroxide,carbon monoxide,carbon dioxide,sodium bicarbonate,sodium carbonate,hydrogen,hydrogenized oil,liquid ammonia,ammonia liquor,nitric acid,synthetic ammonia,fatty alcohol and so on.

氧气，氮气，氢气，一氧化碳，二氧化碳，液氧，液氩，液氨，氨水，硝酸，双氧水，碳酸氢钠，碳酸钠，合成氨，脂肪醇等。

Buluofen is powder of white crystallization sex, in the Yi Rong in alcohol, acetone, 3 chloric firedamp or ether, in water scarcely dissolve, in hydrogen oxidation natrium or sodium carbonate try the Yi Rong in fluid.

布洛芬是白色结晶性粉末，在乙醇、丙酮、三氯甲烷或乙醚中易溶，在水中几乎不溶，在氢氧化钠或碳酸钠试液中易溶。

Hydrogen peroxide as oxidizer and sodium carbonate as remover, arsenic, iron, nickel, calciumand lead are removed from copper-bearing mixture by neutralization and precipitation, then use the liquor thathave been filtrated react with the sodium carbonate to produce basic copper carbonae and make the quality of theproduct meet the export request.

采用氧化和中和沉淀方法，以H_2O_2作氧化剂、Na_2CO_3作脱杂剂脱除含铜混合液中的As、Fe、Ni、Ca、Pb等杂质，利用其与碳酸钠反应生产减式碳酸铜，并使产品质量达到出口要求。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。